JPS6092113U - capacitive converter - Google Patents
capacitive converterInfo
- Publication number
- JPS6092113U JPS6092113U JP18557883U JP18557883U JPS6092113U JP S6092113 U JPS6092113 U JP S6092113U JP 18557883 U JP18557883 U JP 18557883U JP 18557883 U JP18557883 U JP 18557883U JP S6092113 U JPS6092113 U JP S6092113U
- Authority
- JP
- Japan
- Prior art keywords
- pair
- variable capacitors
- current
- oscillator
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は一対の可変コンデンサを用いた検出器の一例を
示す断面図、第２図は従来の容量式変換装置の一例を示
す接続図、第３図は本考案装置の一実施例を示す接続図
、第４，５図は本考案装置の他の実施例を示す接続図で
ある。
Ｃ１，Ｃ２・・・可変コンデンサ、Ｃ３・・・固定コン
デンサ、Ｒｓ・・・補償用の抵抗、Ｏ２０・・・発振器
、ＣＯＮｍ、ＣＯＮ２・・・電流電圧変換器、Ｄ□〜Ｄ
６・・・整流用ダイオード、Ｔ・・・トランス、ＯＰ□
〜ＯＰ３・・・演算増幅器、ＩＮＴ−・・積分器。Fig. 1 is a sectional view showing an example of a detector using a pair of variable capacitors, Fig. 2 is a connection diagram showing an example of a conventional capacitive conversion device, and Fig. 3 is an example of an embodiment of the device of the present invention. 4 and 5 are connection diagrams showing other embodiments of the device of the present invention. C1, C2... variable capacitor, C3... fixed capacitor, Rs... compensation resistor, O20... oscillator, CONm, CON2... current voltage converter, D□~D
6... Rectifier diode, T... Transformer, OP□
~OP3...Operation amplifier, INT-...Integrator.
Claims (1)
ンデンサを有する検出器と、前記一対の可変コンデンサ
に発振出力を印加する発振器と、この発振器の発振出力
を整流した電圧が与えられる補償用抵抗と、この補償用
抵抗に基づいて流れる電流を分流して補償電流を得る回
路と、前記一対の可変コンデンサの容量の和に対応した
平均値電流が基準電流と補償電流との和に等しくなるよ
うに前記発振器を制御する回路と、前記一対の可変コン
−デンサの容量の差に対応した平均値電流に関連した出
力信号を得る回路とを具備してなる容量式変換装置。A detector having a pair of variable capacitors whose capacitances differentially change depending on the measured quantity, an oscillator that applies an oscillation output to the pair of variable capacitors, and a voltage obtained by rectifying the oscillation output of this oscillator is provided. A compensating resistor, a circuit that divides the current flowing based on the compensating resistor to obtain a compensating current, and an average value current corresponding to the sum of the capacitances of the pair of variable capacitors is the sum of the reference current and the compensating current. A capacitive conversion device comprising: a circuit for controlling the oscillator so that the capacitances of the pair of variable capacitors are equal; and a circuit for obtaining an output signal related to an average value current corresponding to a difference in capacitance of the pair of variable capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18557883U JPS6092113U (en) | 1983-11-30 | 1983-11-30 | capacitive converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18557883U JPS6092113U (en) | 1983-11-30 | 1983-11-30 | capacitive converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6092113U true JPS6092113U (en) | 1985-06-24 |
| JPH0412466Y2 JPH0412466Y2 (en) | 1992-03-25 |
Family
ID=30401075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18557883U Granted JPS6092113U (en) | 1983-11-30 | 1983-11-30 | capacitive converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6092113U (en) |
-
1983
- 1983-11-30 JP JP18557883U patent/JPS6092113U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0412466Y2 (en) | 1992-03-25 |
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