JPH0272948U - - Google Patents
Info
- Publication number
- JPH0272948U JPH0272948U JP15375388U JP15375388U JPH0272948U JP H0272948 U JPH0272948 U JP H0272948U JP 15375388 U JP15375388 U JP 15375388U JP 15375388 U JP15375388 U JP 15375388U JP H0272948 U JPH0272948 U JP H0272948U
- Authority
- JP
- Japan
- Prior art keywords
- changes
- pressure
- temperature sensor
- output
- pressure sensor
- 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.)
- Pending
Links
- 230000010355 oscillation Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measuring Fluid Pressure (AREA)
Description
第１図は本考案の一実施例による圧力センサの
要部を示す回路構成図、第２図は従来の温度セン
サ回路を示す構成図である。
１…温度センサ、４…温度センサ回路、９…ロ
ーパスフイルタ、１２…バツフアアンプ。
FIG. 1 is a circuit configuration diagram showing essential parts of a pressure sensor according to an embodiment of the present invention, and FIG. 2 is a configuration diagram showing a conventional temperature sensor circuit. 1...Temperature sensor, 4...Temperature sensor circuit, 9...Low pass filter, 12...Buffer amplifier.
Claims (1)
対応する発振周波数の変化として検出する圧力セ
ンサ部と、圧力センサによる検出圧力を温度補正
するために圧力雰囲気の温度を検出する温度セン
サとをセンサ本体に搭載してなる圧力センサであ
つて、 上記温度センサの出力を電圧信号として出力す
る温度センサ回路と、 該温度センサ回路の出力端に接続され、該温度
センサ回路出力中の上記圧力センサ出力周波数成
分をカツトするフイルタと、 該フイルタの出力端に接続され、出力インピー
ダンスを低くするバツフアアンプとを備えたこと
を特徴とする圧力センサ。[Claim for Utility Model Registration] A pressure sensor unit that detects pressure changes as changes in oscillation frequency corresponding to changes in the resonance frequency of a pressure sensing element, and a pressure sensor unit that detects pressure changes as changes in oscillation frequency corresponding to changes in the resonance frequency of a pressure sensing element, and A pressure sensor comprising a temperature sensor for detection mounted on a sensor body, a temperature sensor circuit for outputting the output of the temperature sensor as a voltage signal, and a temperature sensor circuit connected to the output end of the temperature sensor circuit. A pressure sensor comprising: a filter that cuts off frequency components of the pressure sensor output during output; and a buffer amplifier connected to the output end of the filter to lower output impedance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15375388U JPH0272948U (en) | 1988-11-25 | 1988-11-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15375388U JPH0272948U (en) | 1988-11-25 | 1988-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0272948U true JPH0272948U (en) | 1990-06-04 |
Family
ID=31429871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15375388U Pending JPH0272948U (en) | 1988-11-25 | 1988-11-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0272948U (en) |
-
1988
- 1988-11-25 JP JP15375388U patent/JPH0272948U/ja active Pending