JPS6390136U - - Google Patents
Info
- Publication number
- JPS6390136U JPS6390136U JP18369686U JP18369686U JPS6390136U JP S6390136 U JPS6390136 U JP S6390136U JP 18369686 U JP18369686 U JP 18369686U JP 18369686 U JP18369686 U JP 18369686U JP S6390136 U JPS6390136 U JP S6390136U
- Authority
- JP
- Japan
- Prior art keywords
- charge
- voltage
- conversion circuit
- circuit
- combustion engine
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Description
第１図は本考案に係る内燃機関の筒内圧力処理
装置を示す全体概要図、第２図は第１図の圧力セ
ンサの回路図、第３図は第２図の変更例を示す回
路図である。
８：圧電式圧力センサ、８１：圧電素子、８２
：電荷／電圧変換回路、８３：増幅回路。
Fig. 1 is an overall schematic diagram showing a cylinder pressure processing device for an internal combustion engine according to the present invention, Fig. 2 is a circuit diagram of the pressure sensor shown in Fig. 1, and Fig. 3 is a circuit diagram showing a modification of Fig. 2. It is. 8: Piezoelectric pressure sensor, 81: Piezoelectric element, 82
: Charge/voltage conversion circuit, 83: Amplification circuit.
Claims (1)
サ８１に、 オペアンプ等により構成され、該圧力センサの
圧電素子の発生電荷を蓄積して電圧に変換する電
荷／電圧変換回路８２と、 オペアンプ等により構成され、該電荷／電圧変
換回路の出力を増幅する増幅回路８３と、 を内蔵し、 前記増幅回路の増幅度を前記機関の運転状態も
しくは前記電荷／電圧変換回路の出力に応じて可
変とし、 前記電荷／電圧変換回路の基準電圧および前記
増幅回路の基準電圧を共通化した内燃機関の筒内
圧力処理装置。[Claim for Utility Model Registration] A piezoelectric pressure sensor 81 that detects the cylinder pressure of an internal combustion engine is configured with an operational amplifier, etc., and a charge/voltage that accumulates the charge generated by the piezoelectric element of the pressure sensor and converts it into voltage. A conversion circuit 82; and an amplifier circuit 83 configured with an operational amplifier or the like and amplifying the output of the charge/voltage conversion circuit; An in-cylinder pressure processing device for an internal combustion engine, in which the reference voltage of the charge/voltage conversion circuit and the reference voltage of the amplifier circuit are made variable according to the output of the charge/voltage conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18369686U JPS6390136U (en) | 1986-12-01 | 1986-12-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18369686U JPS6390136U (en) | 1986-12-01 | 1986-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6390136U true JPS6390136U (en) | 1988-06-11 |
Family
ID=31130671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18369686U Pending JPS6390136U (en) | 1986-12-01 | 1986-12-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6390136U (en) |
-
1986
- 1986-12-01 JP JP18369686U patent/JPS6390136U/ja active Pending
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