Oscilloscopic ferrometer
阅读：655发布：2022-01-04
专利汇可以提供Oscilloscopic ferrometer专利检索，专利查询，专利分析的服务。并且An oscilloscopic ferrometer comprising a magnetizing system in the form of a stepdown transformer having a single-turn secondary winding and at least two ellipsoidal solenoids connected thereto and mounted coaxially relative to each other with an air gap therebetween. Each ellipsoidal solenoid has a uniform pitch of hollow turns along the generatrix. Direct and return current leads establish an aiding-series connection between the solenoids and constitute an integral part of the single-turn secondary winding, the leads comprising hollow cylindrical bodies whose ends are interconnected by means of manifolds, the return current lead extending inside the direct current lead coaxially therewith. A measuring channel for magnetization has a measuring coil disposed in the central zone of the air gap and a compensation coil mounted coaxially with the current lead of the secondary winding. A measuring channel for a magnetizing field has a field intensity sensor and a circuit for measuring the parameters of dynamic remagnetization loop of a sample being tested including an oscilloscope, the ellipsoidal solenoids and the secondary winding being provided with a circulatory cooling, and the geometric dimensions of each of the ellipsoidal solenoids being selected on the basis of a predetermined relationship therebetween and with the size of the air gap.，下面是Oscilloscopic ferrometer专利的具体信息内容。
1. An oscilloscopic ferrometer comprising: a magnetizing means; a measuring channel for magnetization interrelated with said magnetizing means; a measuring channel for a magnetizing field interrelated with said magnetizing means; a circuit for measuring the parameters of a dynamic remagnetization loop of a sample being tested; said magnetizing means comprising: a step-down transformer; a core of said stepdown transformer; a single-turn secondary winding of said stepdown transformer; at least two identical ellipsoidal solenoids connected to said secondary winding, said solenoids being coaxially arranged relative to each other with an air gap therebetween and each having hollow turns with uniform pitch along the generatrix; a direct current lead and a return current lead establishing an aiding-series connection between said ellipsoidal solenoids, said current leads constituting an integral part of said single-turn secondary winding; said current leads comprising hollow coaxial cylindrical bodies; said return current lead extending inside and direct current lead; manifolds connected to said coaxial cylindrical bodies; cooling fluid flowing through the hollow turns of said ellipsoidal solenoids, said secondary winding and said manifolds; said measuring channel for magnetization comprising: a measuring coil located in the central zone of said air gap; a compensation coil coaxially disposed with respect to said current lead of the secondary winding; a field intensity sensor of said measuring channel for magnetizing field; a cathode-ray tube having a control electrode and deflecting plates to fix an image of the dynamic remagnetization loop of the sample being tested placed inside said ellipsoidal solenoids which create a uniform magnetic field so that the intensity of this field and magnetization of said sample are converted in said measuring channels into electric signals fed to the electrodes of said cathode-ray tube; the geometric dimensions of said ellipsoidal solenoids being selected on the basis of the following relationship therebetween and the dependence on the size of said air gap:
2. An oscilloscopic ferrometer comprising: a magnetizing means; a measuring channel for magnetization interrelated with said magnetizing means; a measuring channel for a magnetizing field interrelated with said magnetizing means; a circuit for measuring the parameters of a dynamic remagnetization loop of a sample being tested; said magnetizing means comprising: a stepdown transformer; a core of said stepdown transformer; a single-turn secondary winding of said stepdown transformer; at least two identical ellipsoidal solenoids, said solenoids being connected to said secondary winding, coaxially arranged relative to each other with an airgap therebetween and each having hollow turns with uniform pitch along the generatrix; a direct current lead and a return current lead, said current leads establishing an aiding-series connection between said ellipsoidal solenoids and constituting an integral part of said single-turn secondary winding; said current leads comprising coaxial hollow cylindrical bodies; said return current lead extending inside said direct current lead; manifolds connected to said coaxial cylindrical bodies; colling fluid flowing through the hollow turns of said ellipsoidal solenoids, said secondary winding and said manifolds; said measuring channel for magnetization comprising a measuring coil located in the central zone of said air gap, a compensation coil arranged coaxially with respect to said current lead of the secondary winding; a compensation system of said measuring coil comprising two current compensation coils, each compensation coils being disposed coaxially with respect to said respective solenoid at a distance of one-fourth of the solenoid length from the right-hand end thereof for the right-hand winding and having a length smaller than one-twelfth of the solenoid length; a potential compensation coil comprising said compensation coil of the measuring channel for magnetization which is linked with the magnetic flux of said core of the stepdown transformer; an amplitude-phase corrector of the first harmonic having an input and an output, the input of said amplitude-phase corrector of the first harmonic having an input and an output, the input of said amplitude-phase corrector being connected to said potential compensation coil and said output is connected to said first current compensation coil in series-opposition with said first current coil; an amplitude-phase corrector of higher harmonic having an input and an output; the input of said corrector of higher harmonics being connected to said second current coil, and said output thereof is connected in series-opposition to said measuring coil of the measuring channel for magnetization; a field intensity sensor of said measuring channel for magnetizing field; a cathode-ray tube of said circuit for measuring the parameters to fix an image of the dynamic remagnetization loop of the sample being tested accommodated inside said ellipsoidal solenoids which create uniform magnetic field so that the intensity of this field and magnetization of said sample are converted into electric signals in said measuring channels to be fed to the electrodes of said cathode-ray tube, the geometric dimensions of said ellipsoidal solenoids being selected on the basis of the following relationship therebetween and the dependence on the size of said air gap:
3. An oscilloscopic ferrometer according to claim 1, comprising a short-circuited screen made of a non-magnetic material having a high electric conductance, said screen embracing each said measuring coil of the measuring channel for magnetization; the ratio of the length of said screen to the length of said measuring coil being equal to at least 1.2.
4. An oscilloscopic ferrometer according to claim 2, comprising a short-circuited screen made of a non-magnetic material having a high electric conductance, said screen embracing each said measuring coil of the measuring channel for magnetization; the ratio of the length of said screen to the length of said measuring coil being equal to at least 1.2.
5. An oscilloscopic ferrometer according to claim 2, comprising two integrators, each inserted in each of said measuring channels; two phase correctors each connected to the respective one of said integrators; calibrators responsive to the polarity of the signal being measured; said circuit for measuring the parameters of dynamic remagnetization loop including: a gate converter having an input and an output; the input of said gate converter being connected to the output of said phase corrector of the channel for the magnetizing field; the output of said gate converter being connected to said control electrode of the cathode-ray tube; a converter of instant values of current and intensity into DC voltage having inputs and outputs; the inputs of said instant value converter being connected to the output of said gate converter and to the outputs of said phase correctors; the outputs of said instant value converter being connected to said calibrators; a unit for computation of the differential magnetic permeability or susceptibility having inputs and outputs; the inputs of said unit for computation of the differential magnetic permeability or susceptibility being connected in parallel with the inputs of said integrator of the channel for the magnetizing field and to the output of said gate converter; the outputs of said unit for computation of the differential magnetic permeability or susceptibility being connected to one of said calibrators; a unit for computation of total electromagnetic losses having inputs and outputs; the inputs of said unit for computation of total electromagnetic losses being connected to the inputs and outputs of said channels for magnetization and magnetizing field; the outputs of said unit for computation of total electromagnetic losses being connected to the other of said calibrators; an autoswitch having inputs and outputs; one input of said autoswitch being connected to the output of said phase corrector of the channel for magnetization; the other input of said autoswitch being connected to the output of said phase corrector of the channel for magnetizing field; the output of said autoswitch being connected to said deflecting plates of the cathode-ray tube; a unit for shaping an image of scale-marked coordinate axes of magnetization and intensity having a input and an output; the input of said unit for shaping being connected to the output of said phase corrector of the channel for magnetization and to the output of said channel for the magnetizing field; the output of said unit for shaping being connected to the input of said autoswitch.
6. An oscilloscopic ferrometer according to claim 5, wherein said gate converter comprises: a converter of sinusoidal pulse into square pulses of the same period; a Flip-flop for division of the square pulse repetition rate by two connected in series with said sinusoidal pulse converter; a monostable multivibrator with a variable time delay from nil to the value of the field period connected in series with said flip-flop; a monostable multivibrator for shaping square gate pulses connected in series with said monostable multivibrator with a variable time delay; an inverting amplifier connected in series with said monostable multivibrator for shaping square gate pulses having an output; the output of said inverting amplifier being connected to said control electrode of the cathode-ray tube.
7. An oscilloscopic ferrometer according to claim 5, wherein said unit for computation of the differential magnetic permeability or susceptibility comprises: an amplitude modulator for the magnetizing field having an input and an output whose input is connected to the output of said gate converter and to said phase corrector of the channel for the magnetizing field; an amplitude modulator for magnetization having an input and an output whose input is connected to said phase corrector of the channel for magnetization and to the output of said gate converter; an amplitude detector for the magnetizing field having inputs and outputs whose input is connected to the output of said amplitude modulator for the magnetizing field; and amplitude detector for magnetization having an input and an output whose input is connected to the output of said amplitude modulator for magnetization; a key connected to the output of said amplitude detector for magnetization; a timing pulse generator connected to said key; a voltage/time period converter having an input and an output whose input is connected to said key; a flip-flop having inputs and an output; the first input of said flip-flop being connected to the output of said voltage/time period converter; the second input of said flip-flop being connected to said timing pulse generator; the output of said flip-flop being connected to said key; an amplitude modulator having inputs and an output; one input of said amplitude modulator being connected to the output of said flip-flop; the other input of said amplitude modulator being connected to the output of said amplitude detector for magnetization; the output of said amplitude modulator being connected to the input of said calibrator.
8. An oscilloscopic ferrometer according to claim 5, wherein said unit for computation of total electromagnetic losses comprises: two squarers; an adder circuit having inputs and an output; one input of said adder circuit being connected to the output of said phase corrector of the channel for magnetizing field; the other input of said adder circuit being connected to said input of the integrator of the channel for magnetization; the output of said adder circuit being connected to one of said squarers; a subtractor having inputs and an output; one input of said subtractor being connected to the output of said phase corrector of the channel for magnetizing field; the other input of said subtractor being connected to said input of the integrator of the channel for magnetization; the output of said subractor being connected to the other of said squarers; a subtractor circuit having two inputs and an output; each input of said subtractor circuit being connected to each of said squarers; an integrator having an input and an output; the input of said integrator being connected to the output of said subtractor circuit; the output of said integrator being connected to said calibrator.
9. An oscilloscopic ferrometer according to claim 5, wherein said unit for shaping an image of scale-marked coordinate axes comprises: a scale-marking pulse generator coupled to the output of said phase corrector of the channel for the magnetizing field; a sawtooth generator; at least two frequency dividers connected in series; the first one of said frequency dividers being connected to said scale-marking pulse generator; the last one of said frEquency dividers being connected to said sawtooth generator; two comparison circuits each having inputs and an output; the inputs of the first comparison circuit being connected to the output of said phase corrector of the channel for the magnetizing field and to said sawtooth generator; the inputs of the second comparison circuit being connected to the output of said phase corrector of the channel for magnetization and to said sawtooth generator; a flip-flop having an input and an output; the input of said flip-flop being connected to the last one of said frequency dividers; a first group of coincidence circuits each having two inputs and an output; one input of each of said coincidence circuits being connected to the output of the respective one of said comparison circuits; the other input of each of said coincidence circuits being connected to the output of said flip-flop; two keys each being connected to the output of the respective one of said coincidence circuits and to the input of said autoswitch; a second group of coincidence circuits each having inputs and outputs; one input of each coincidence circuit of the second group being connected to said flip-flop; a second input of each coincidence circuit of the second group being connected to said scale-marking pulse generator; a third input of each coincidence circuit of the second group being connected to said first frequency divider; the outputs of all of said coincidence circuits of the second group being connected to the inputs of said autoswitch.
10. An oscilloscopic ferrometer according to claim 6, wherein said unit for computation of the differential magnetic permeability or susceptibility comprises: an amplitude modulator for the magnetizing field having an input and an output whose input is connected to the output of said gate converter and to said phase corrector of the channel for the magnetizing field; an amplitude modulator for magnetization having an input and an output whose input is connected to said phase corrector of the channel for magnetization and to the output of said gate converter; an amplitude detector for the magnetizing field having an input and outputs whose input is connected to the output of said amplitude modulator for the magnetizing field; an amplitude detector for magnetization having an input and an output whose input is connected to the output of said amplitude for magnetization; a key connected to the output of said amplitude detector for magnetization; a timing pulse generator connected to said key; a voltage/time period converter having an input and an output whose input is connected to said key; a flip-flop having inputs and an output; the first input of said flip-flop being connected to the output of said voltage/time period converter; the second input of said flip-flop being connected to said timing pulse generator; the output of said flip-flop being connected to said key; an amplitude modulator having inputs and an output; one input of said amplitude modulator being connected to the output of said flip-flop; the other input of said amplitude modulator being connected to the output of said amplitude detector for magnetization; the output of said amplitude modulator being connected to the input of said calibrator.
11. An oscilloscopic ferrometer according to claim 6, wherein said unit for computation of total electromagnetic losses comprises; two squarers; an adder circuit having inputs and an output; one input of said adder circuit being connected to the output of said phase corrector of the channel for magnetizing field; the other input of said adder circuit being connected to said input of said integrator of the channel for magnetization; the output of said adder circuit being connected to one of said squarers; a subtractor having inputs and an output; one input of said subtractor being connected to the output of said phase corrector of the channel for magnetizing field; the other input of said subtractor being connected to said input of the integrator of the channel for magnetization; the output of said subtractor circuit having two inputs and an output; each input of said subtractor circuit being connected to the respective one of said squarers; an integrator having an input and an output; the input of said integrator being connected to said output of said subtractor circuit; the output of said integrator being connected to said calibrator.
12. An oscilloscopic ferrometer according to claim 6, wherein said unit for shaping an image of scale-marked coordinate axes comprises: a scale-marking pulse generator coupled to the output of said phase corrector of the channel for the magnetizing field; a sawtooth generator; at least two frequency dividers connected in series; the first one of said frequency dividers being connected to said scale-marking pulse generator; the last one of said frequency dividers being connected to said sawtooth generator; two comparison circuits each having inputs and an output; the inputs of the first comparison circuit being connected to the output of said phase corrector of the channel for the magnetizing field and to said sawtooth generator; the inputs of the second comparison circuit being connected to the output of said phase corrector of the channel for magnetization and to said sawtooth generator; a flip-flop having an input and an output; the input of said flip-flop being connected to the last one of said frequency dividers; a first group of coincidence circuits each having two inputs and an output; one input of each coincidence circuit being connected to the output of the respective one of said comparison circuits the other input of each coincidence circuit being connected to the output of said flip-flop; two keys each being connected to the output of the respective one of said coincidence circuits and to the input of said autoswitch; a second group of coincidence circuits each having inputs and outputs; one input of each coincidence circuit of the second group being connected to said flip-flop; a second input of each coincidence circuit of the second group being connected to said scale-marking pulse generator; a third input of each coincidence circuit of the second group being connected to said first frequency divider; the outputs of all of said coincidence circuits of the second group being connected to the inputs of said autoswitch.
13. An oscilloscipic ferrometer according to claim 7, wherein said unit for computation of total electromagnetic losses comprises: two squarers; an adder circuit having inputs and an output; one input of said adder circuit being connected to the output of said phase corrector of the channel for magnetizing field; the other input of said adder circuit being connected to said input of the integrator of the channel for magnetization; the output of said adder circuit being connected to one of said squarers; a subtractor having inputs and an output; one input of said subtractor being connected to the output of said phase corrector of the channel for magnetizing field; the other input of said subtractor being connected to said input of the integrator of the channel for magnetization; the output of said subtractor being connected to the other of said squarers; a subtractor circuit having two inputs and an output; each input of said subtractor circuit being connected to the respective one of said squarers; an integrator having an input and an output; the input of said integrator being connected to the output of said subtractor circuit; the output of said integrator being connected to said claibrator.
14. An oscilloscopic ferrometer according to claim 7, wherein said unit for shaping an image of scale-marked coordinate axes comprises: a scale-marking pulse generator coupled to the output of said phase corrector of the channel for the magnetizing field; a sawtooth generator; at least two frequency dividers connected in series; the first one of said frequency dividers being connected to said scale-marking pulse generator; the last one of said frequency divideRs being connected to said sawtooth generator; two comparison circuits each having inputs and an output; the inputs of the first comparison circuit being connected to the output of said phase corrector of the channel for the magnetizing field and to the sawtooth generator; the inputs of the second comparison circuit being connected to the output of said phase corrector of the channel for magnetization and to said sawtooth generator; a flip-flop having an input and an output; the input of said flip-flop being connected to the last one of said frequency dividers; a first group of coincidence circuits each having two inputs and an output; one input of each coincidence circuit being connected to the output of the respective one of said comparison circuits; the other input of each coincidence circuit being connected to the output of said flip-flop; two keys each being connected to the output of the respective one of said coincidence circuits and to the input of said autoswitch; a second group of coincidence circuits each having inputs and outputs; one input of each coincidence circuit of the second group being connected to said flip-flop; a second input of each coincidence circuit of the second group being connected to said scale-marking pulse generator; a third input of each coincidence circuit of the second group being connected to said first frequency divider; the outputs of all of said coincidence circuits of the second group being connected to the inputs of said autoswitch.
15. An oscilloscopic ferrometer according to claim 8, wherein said unit for shaping an image of scale-marked coordinate axes comprises: a scale-marking pulse generator coupled to the output of said phase corrector of the channel for the magnetizing field; a sawtooth generator; at least two frequency dividers connected in series; the first one of said frequency dividers being connected to said scale-marking pulse generator; the last one of said frequency dividers being connected to said sawtooth generator; two comparison circuits each having inputs and an output; the inputs of the first comparison circuit being connected to the output of said phase corrector of the channel for magnetizing field and to the sawtooth generator; the inputs of the second comparison circuit being connected to the output of said phase corrector of the channel for magnetization and to said sawtooth generator; a flip-flop having an input and an output; the input of said flip-flop being connected to the last one of said frequency dividers; a first group of coincidence circuits each having two inputs and an output; one input of each coincidence circuit being connected to the output of the respective one of said comparison circuits; the other input of each coincidence circuit being connected to the output of said flip-flop; two keys each being connected to the output of the respective one of said coincidence circuit and to the input of said autoswitch; a second group of coincidence circuits each having inputs and outputs, one input of each coincidence circuit of the second group being connected to the flip-flop; a second input of each coincidence circuit of the second group being connected to said scale-marking pulse generator; a third input of each coincidence circuit of the second group being connected to said first frequency divider; the outputs of all of said coincidence circuits of the second group being connected to the inputs of said autoswitch.
16. An oscilloscopic ferrometer according to claim 9, comprising a phase correction monitoring unit including a two positional switch having contact groups for two positions; the contact group for the first position being connected to said integrator of the measuring channel for magnetization and said integrator of the measuring channel for the magnetizing field; the contact group for the second position being connected to said flip-flop of the unit for shaping an image; a mixer for triangular pulses and scale-marking pulses having inputs and an output; one input of said mixer being conNected to said scale-marking pulse generator of the unit for shaping an image; the other input of said mixer being connected to any desired number of said frequency dividers of the unit for shaping an image; a second two positional switch having contact groups for two positions and operating in a timed relation with said first-mentioned two positional switch; the contact group for the first position of said second switch being connected to said phase correctors of the measuring channels for magnetization and the magnetizing field, so that, when the output of said mixer is connected, via the contact group for the first position of said second switch, to the phase corrector of the channel for the magnetizing field, said flip-flop is connected to said integrator of the channel for magnetization, via the contact group for the first position of said first switch, and, when the output of said mixer is connected to said phase corrector of the channel for magnetization, said flip-flop is connected to said integrator of the channel for the magnetizing field.
17. An oscilloscopic ferrometer according to claim 10, wherein said unit for computation of total electromagnetic losses comprises: two squarers; an adder circuit having inputs and an output; one input of said adder circuit being connected to the output of said phase corrector of the channel for magnetizing field; the other input of said adder circuit being connected to said input of said integrator of the channel for magnetization; the output of said adder circuit being connected to one of said squarers; a subtractor having inputs and an output; one input of said subtractor being connected to the output of said phase corrector of the channel for magnetizing field; the other input of said subtractor being connected to said input of the integrator of the channel for magnetization; the output of said subtractor being connected to the other of one of said squarers; a subtractor circuit having two inputs and an output; each input of said subtractor circuit being connected to the respective one of said squarers; an integrator having an input and an output; the input of said integrator being connected to said output of said subtractor circuit; the output of said integrator being connected to said calibrator.
18. An oscilloscopic ferrometer according to claim 10, wherein said unit for shaping an image of scale-marked coordinate axes comprises; a scale-marking pulse generator coupled to the output of said phase corrector of the channel for the magnetizing field; a sawtooth generator; at least two frequency dividers connected in series; the first one of said frequency dividers being connected to said scale-marking pulse generator; the last one of said frequency dividers being connected to said sawtooth generator; two comparison circuits each having inputs and an output; the inputs of the first comparison circuit being connected to the output of said phase corrector of the channel for the magnetizing field and to said sawtooth generator; the inputs of the second comparison circuit being connected to the output of said phase corrector of the channel for magnetization and to said sawtooth generator; a flip-flop having an input and an output; the input of said flip-flop being connected to the last one of said frequency dividers; a first group of coincidence circuits each having two inputs and an output; one input of each coincidence circuit being connected to the output of the respective one of said comparison circuits; the other input of each coincidence circuit being connected to the output of said flip-flop; two keys each being connected to the output of the respective one of said coincidence circuits and to the input of said autoswitch; a second group of coincidence circuits each having inputs and outputs; one input of each coincidence circuit of the second group being connected to said flip-flop; a second input of each coincidence circuit of the second group being connected to said scale-marking pulse generator; a third input of each coinCidence circuit of the second group being connected to said first frequency divider; the outputs of all of said coincidence circuits of the second group being connected to the inputs of said autoswitch.
19. An oscilloscopic ferrometer according to claim 17, comprising a phase correction monitoring unit including: a two positional switch having contact groups for two positions; the contact group for the first position being connected to said integrator of the measuring channel for magnetization and said integrator of the measuring channel for the magnetizing field; the contact group for the second position being connected to said flip-flop of the unit for shaping an image; a mixer for triangular pulses and scale-marking pulses having inputs and an output; one input of said mixer being connected to said scale-marking pulse generator of the unit for shaping an image; the other input of said mixer being connected to any desired number of said frequency dividers of the unit for shaping an image; a second two positional switch having contact groups for two positions and operating in a timed relation with said first-mentioned two positional switch; the contact group for the first position of said second switch being connected to said phase correctors of the measuring channels for magnetization and the magnetizing field so that, when the output of said mixer is connected, via the contact group for the first position of said second switch, to the phase corrector of the channel for the magnetizing field, said flip-flop is connected to said integrator of the channel for magnetization, via the contact group for the first position of said first switch, and, when the output of said mixer is connected to said phase corrector of the channel for magnetization, said flip-flop is connected to said integrator of the channel for the magnetizing field.
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