| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | SYSTEM AND METHOD FOR DETERMINING FLUID SPEED | PCT/US2012063301 | 2012-11-02 | WO2013067338A3 | 2015-06-18 | MANGALAM SIVA M; MANGALAM ARUN |
| A flow speed sensor arrangement is provided for measuring a flow speed of a fluid stream relative to an object. The arrangement comprises a first obstructive body having a first forward facing surface and two lateral edges and a second obstructive body having a second forward facing surface. The second obstructive body is positioned in tandem relative to the first obstructive body so that the first and second forward facing surfaces face the same direction and so that when the first forward facing surface is presented to an incoming fluid stream, the first obstructive body is between the incoming fluid flow and the second obstructive body. A sensor array is disposed on the second forward facing surface. The first and second obstructive bodies are attachable to the object so that the first forward face is presented to an incoming fluid stream when the object is immersed in the fluid stream. | ||||||
| 102 | 溶融金属の流速測定方法及びその装置並びにこれに用いる検知棒 | JP2002534783 | 2001-10-12 | JPWO2002031445A1 | 2004-02-19 | 花崎 一治; 林 敦 |
| カルマン渦の振動検知より溶鋼の流速を求める信号処理であって、検知棒の備える振動検知手段によって得られた検知信号の周波数成分を解析する周波数成分解析処理(A)と、この処理から得られたスペクトルカーブのピーク包絡線カーブにおける複数のピークを抽出し、これらのピークの中で、スペクトル強度が最大のものと最小のものとの差又は比が一定値以上である場合にのみ、カルマン渦に起因する振動の存在を認める第1判定(B1〜B7)と、カルマン渦起因の振動の存在が認められる場合に、複数の抽出されたピークの内で、スペクトル強度が最大のピークに対して、一定比率以上のスペクトル強度を有するピークのみを選別し、その中から、周波数が最高のピークの峻別を行なう第2判定(C1〜C4)と、この周波数を用いて溶融金属の流速の演算を行なう流速演算(D)とで構成される。 | ||||||
| 103 | JPH0569468B2 - | JP13197587 | 1987-05-29 | JPH0569468B2 | 1993-10-01 | UORUFUGANGU UAIPURAA; UORUFUGANGU HORUTO |
| 104 | JPH0467129B2 - | JP29513486 | 1986-12-12 | JPH0467129B2 | 1992-10-27 | MIHYAERU HERUTSUOOKU |
| 105 | JPH04505056A - | JP50411191 | 1991-01-15 | JPH04505056A | 1992-09-03 | |
| 106 | JPS6214764B2 - | JP672380 | 1980-01-22 | JPS6214764B2 | 1987-04-03 | SUZUKI HIROYOSHI |
| 107 | Noise anemometer | JP4823684 | 1984-03-15 | JPS60194366A | 1985-10-02 | ISHII YASUSHI |
| PURPOSE:To obtain a stable anemometer having rapid response and excellent in portability, by utilizing the magnitude of wind hissing sound generated when a gas stream is impinged to an acoustic microphone. CONSTITUTION:Microphones 1, 1', to which sponge like spherical windshields 2, 2' each having a large porocity are attached, are arranged at intervals (d) sufficiently small as compared with the wavelength of objective sound. The outputs of the microphones 1, 1' contain wind hissing sound generated by wind impinged to the windshields 2, 2' and other external noise but, because external noise has almost the same amplitude and the same phase in two microphones 1, 1', the output of a differential amplifier 4 corresponds to wind hissing sound. These outputs are displayed by a meter through a filter 5 and a rectifier circuit 6 to obtain a wind velocity value. By this mechanism, a stable anemometer high in a response speed is obtained. | ||||||
| 108 | JPS6029046B2 - | JP731480 | 1980-01-24 | JPS6029046B2 | 1985-07-08 | YOKOKAWA SHOZO; OONO ISAMU; KURITA YOSHIO |
| 109 | JPS5857687B2 - | JP6190378 | 1978-05-24 | JPS5857687B2 | 1983-12-21 | ITO ICHIZO |
| 110 | JPS5892618U - | JP18705681 | 1981-12-17 | JPS5892618U | 1983-06-23 | |
| 111 | Flowmeter | JP16996081 | 1981-10-23 | JPS57100310A | 1982-06-22 | PERU SUBANTE BAATON |
| 112 | Karman vortex current meter | JP14418880 | 1980-10-14 | JPS5767863A | 1982-04-24 | SUZUKI HIROYOSHI |
| PURPOSE:To eliminate the need for providing extra bypass lines to the outside part of a conduit, reduce size and simplify construction by providing a correcting column which is disposed in parallel with a vortex generating column on the upper stream side of the vortex generating column and can correct the number of generation of Karman vortexes. CONSTITUTION:On the upper stream side of a vortex generating column 2, and on the down stream of a flow regulating body 9, a correcting column 12 for the number of vortex generation of width narrower than the column 2 is provided in parallel with said column 2. If with such constitution gaseous flow flows into a conduit 1, a post flow area 13 slower than the average velocity of flow in the conduit is formed behind the column 12. Thereby, the vortex frequency of the case when there is the correcting column is made smaller as compared to the case when there is no column 12. Hence, the number of vortex generation is corrected without providing any extra bypass line to the outside part of the conduit, and the vortex current meter is made small in size and simple in construction. | ||||||
| 113 | Flow speed meter | JP9173580 | 1980-07-07 | JPS5717864A | 1982-01-29 | MIZOTE MASAYOSHI; KITA TOORU |
| PURPOSE:To prevent a heating wire from damage by providing a heating element inside a vortex generating object and detecting a current speed from a flow caused by Karman's vortex taking place in the vortex generation object. CONSTITUTION:A pole type vortex generating object 13 provided with a vertical slit against the flow of fluid is set inside a pipe line 12. In the down stream of this vortex generating object 13, Karman's vortex 14 takes place the generating cycle of which is in proportion to the flow speed. When the fluid strikes the vortex generating object 13, the vortex 14 separates from its side face to go toward the down stream. Then, the pressure decreases by separation of the vortex 14 and the fluid in the slit moves to the vortex generating side. Since the vortex is generated alternately in both side, the current speed V of the fluid running across a heating wire 5 changes with the frequency proportional to the current speed in the pipeline. This change means the change in the resistance value of the heating wire 5, which is detected in a brige circuit, and the current speed is found. | ||||||
| 114 | Velocity of flow measuring device | JP5918980 | 1980-04-30 | JPS56154668A | 1981-11-30 | WADA SHIYUNICHI |
| PURPOSE:To stabilize operation by a method wherein the current meter of the system demodulating the phase modulation signals of supersonic waves caused by Ka rma n whirl the initial set value of the voltage control phase deviation circuit is initially set on the optimum value through the reset circuit. CONSTITUTION:The supersonic waves phase modulated by Ka rma n whirl become one imput V5 of the phase comparator 6. The voltage control phase deviation circuit 8 generates the signals V4, wherein the phase deviation angle from the oscillation signals V1 is controlled according to the output voltage V7 of the loop filter 7, becomes the other of the comparator 6 constituting the phase synchronous loop. The phase synchronous point of said loops are existing in plurality each 2pi. The transistor 51 constitutes a reset circuit turning ''ON'' immediately after the power source Vcc is made and V7 is equal to + input voltage of 13. When said reference voltage is set at the set voltage value corresponding to the center of the minimum deviation angle and the maximum deviation angle of the circuit 8, even at the time of making as well as of building-up of the power source Vcc the voltage V7 shift to the voltage corresponding to the nearest synchronous deviation angle to quickly synchronize in phase. | ||||||
| 115 | Flow velocity and rate measuring apparatus | JP731480 | 1980-01-24 | JPS56104252A | 1981-08-19 | YOKOKAWA SHIYOUZOU; OONO ISAMU; KURITA YOSHIO |
| PURPOSE: To improve solidity, heat resistance, pressure resistance and durability of the structure of a flow velocity and rate measuring apparatus by inserting an electrode portion having two electrodes in the axially extending concave portion in a vortex generating body, with a slight gap therebetween, and differentially detecting the capacities fromed between the concave portion walls and the two electrodes. CONSTITUTION: The electrode portion 5 is constituted by a columnar member, formed with two electrodes 51 and 52 axially placed in a parallel on the columnar surface and inserted in the concave portion 21 in a vortex generating body 2 so that the electrodes 51 and 52 are bysymmetric with respect to the flow direction, to form capacitor between the side walls of the concave portion 21 and the electrodes 51 and 52. When a fluid flows through a duct 1 and Karman vortexes alternately and regularly are generated from both sides of the vortex generating body 2, it is slightly displaced by receiving lift. The displacement is electrically detected as the capacity change of the capacitors and drawn as a pulse signal corresponding to the flow velocity of the fluid being measured. COPYRIGHT: (C)1981,JPO&Japio | ||||||
| 116 | Detector for flow velocity or flow rate | JP11794079 | 1979-09-17 | JPS5642110A | 1981-04-20 | KITA TOORU |
| PURPOSE: To enable a high-precision measurement in accordance with the flow by a method wherein a rod-shaped vortex generator having two wires arranged symmetrically is placed in a pipeline to provide the functions of both a hot-wire current meter and a Karman vortex flowmeter, which are used selectively. CONSTITUTION: The wires 6, 7 are fitted to L-shaped and T-shaped support members 4, 5 of the vortex generator 1, and electrodes 4a, 4b, 5a are fitted to the wires 6, 7. When heating circuits 9, 10 function to heat the wires 6, 7, variable voltage signals V 6, V 7 corresponding to the voltages between the terminals are outputted. The first detecting circuit 11 picks up a signal Q corresponding to the differential signal V 7-V 6, and outputs a signal Q' which is synchronous with the period of the generation of the Karman vortex. The second detecting circuit 12 outputs an analog signal P' corresponding to the average flow velocity which is obtained by averaging the voltage signals V 6, V 7. The signals Q', P' are changed over by a change-over circuit 13 in accordance with the pulsating condition of the flow, and a predetermined display is provided. Accordingly, the flow rate can always be measured accurately, that is, it is measured through the frequency or period of the pulse signal Q' when the flow is steady, and through the level of the analog signal P' when the flow is pulsating. COPYRIGHT: (C)1981,JPO&Japio | ||||||
| 117 | Apparatus for managing signal of fluid flow | JP2666976 | 1976-03-13 | JPS51114158A | 1976-10-07 | CHIYAARUSU RUISU MATSUKUMAATOR |
| 118 | JPS5069429A - | JP4009274 | 1974-04-10 | JPS5069429A | 1975-06-10 | |
| 119 | 境界層遷移1を検出するための発振素子センサ | JP2011520596 | 2009-07-27 | JP5705111B2 | 2015-04-22 | ノーマン ウッド; カリン バウアー; クサヴァー リーデル; ロナルド ワグナー |
| 120 | Fluid-direction measuring device | JP13197587 | 1987-05-29 | JPS63122964A | 1988-05-26 | BUORUFUGANGU BUAIPURAA; BUORUFUGANGU PORUTO |
QQ群二维码
意见反馈
意见反馈