Meter vane position sensing controller专利检索-仪表放大器差分放大器电子零件及设备专利检索查询-专利查询网

Meter vane position sensing controller

阅读：409发布：2022-05-31

专利汇可以提供Meter vane position sensing controller专利检索，专利查询，专利分析的服务。并且A meter movement controller has a movable meter vane, in the form of a disk of electrically conductive metal, movable between transmitting and sensor plates of a condenser to vary the transfer of energy between the plates. An SCR is arranged to be connected, in series with a diode, across a low-voltage source of AC potential at commercial frequency, and its anode is connected to the transmitting plate through a further condenser. A voltage divider is connected across the source in series with the diode, and the junction of the voltage divider is connected to the gate of the SCR. When the positive half wave of AC potential reaches a preselected potential, such as 100 volts, a triggering pulse is applied to the gate of the SCR to trigger the SCR conductive. This applies a 100-volt pulse to the transmitting plate of the condenser. A transistor amplifier, including a second SCR, connects the sensor plate to a control means, such as a relay winding. The relay winding is thus energized as a function of the transfer of energy between the condenser plates as modulated as a function of the position of the meter vane.，下面是Meter vane position sensing controller专利的具体信息内容。

权利要求

1. A meter movement controller, utilizing a meter having a movable vane, comprising, in combination, a movable vane of electrically conductive metal; a condenser having a transmitting electrode and a sensor electrode; said vane being movable between and parallel to said electrodes to vary the transfer of energy between said electrodes as a function of the position of said vane; pulse generating means connected to said transmitting electrode and operable to apply, to said transmitting electrode, a series of large amplitude pulses; control means; and an energy transfer detecting circuit connecting said control means to said sensor electrode and operable to effect energization of said control means as a function of the position of said vane.

2. A meter movement controller, as claimed in claim 1, in which said pulse generating means comprises an SCR arranged to be connected across a source of AC potential having an electrical neutral and to said transmitting electrode; and means operable, responsive to instantaneous potentials of said source, to trigger said SCR conductive.

3. A meter movement controller, as claimed in claim 2, including a diode connected between one terminal of the source and said SCR.

4. A meter movement controller, as claimed in claim 3, in which said instantaneous potential responsive means comprises a voltage divider connected in series with said diode and in parallel with said SCR; and means connecting a tap of said voltage divider to the gate of said SCR.

5. A meter movement controller, as claimed in claim 4, including a capacitor connected between the anode of said SCR and said transmitting electrode.

6. A meter movement controller, as claimed in claim 5, including a second capacitor connected between said vane and electrical neutral.

7. A meter movement controller, as claimed in claim 4, in which said energy transfer detecting circuit comprises a transistor amplifier connected between said sensor electrode and said control means and controlling energization of said control means.

8. A meter movement controller, as claimed in claim 7, including a second SCR connected, in series with said control means, across the source; and means applying the output of said amplifier to the gate of said second SCR.

9. A meter movement controller, as claimed in claim 8, in which said control means comprises a relay winding shunted by a capacitor.

10. A meter movement controller, as claimed in claim 9, in which said means applying the output of said amplifier to the gate of said second SCR comprises a capacitor connected between said amplifier and said gate.

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