JPH0241117U - - Google Patents
Info
- Publication number
- JPH0241117U JPH0241117U JP11883388U JP11883388U JPH0241117U JP H0241117 U JPH0241117 U JP H0241117U JP 11883388 U JP11883388 U JP 11883388U JP 11883388 U JP11883388 U JP 11883388U JP H0241117 U JPH0241117 U JP H0241117U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- bridge circuit
- series
- resistance
- resistance value
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は同上の特性図、第３図は吸入空気流量検出装
置の従来例を示す回路図、第４図は同上の要部拡
大図である。
１１……熱膜式抵抗、１２……基準抵抗、１３
ａ……温度補償抵抗、１３ｂ……第１固定抵抗、
１４……第２固定抵抗、１７……演算増幅器、１
９……第４固定抵抗、２０……オフセツト調整用
可変抵抗、２１……ゲイン調整用可変抵抗。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
FIG. 3 is a circuit diagram showing a conventional example of the intake air flow rate detection device, and FIG. 4 is an enlarged view of the main parts of the same. 11...Hot film resistor, 12...Reference resistance, 13
a... Temperature compensation resistor, 13b... First fixed resistor,
14...Second fixed resistor, 17...Operation amplifier, 1
9... Fourth fixed resistor, 20... Variable resistor for offset adjustment, 21... Variable resistor for gain adjustment.
Claims (1)
抗体と基準抵抗とを直列接続する一方前記電気抵
抗体の温度補償抵抗と第１固定抵抗と第２固定抵
抗とを直列接続し、これら直列回路を並列接続し
て前記電気抵抗体と第２固定抵抗とが抵抗する辺
上に位置するようにブリツジ回路を構成し、該ブ
リツジ回路への供給電流をブリツジ回路の非平衡
電圧に基づいて制御し吸入空気流量に応じた電圧
をブリツジ回路から出力するようにした内燃機関
の吸入空気流量検出装置において、 前記電気抵抗体の抵抗値ＲＨと基準抵抗の抵抗
値Ｒ３と温度補償抵抗の抵抗値ＲＫと第１固定抵
抗の抵抗値Ｒ１と第２固定抵抗の抵抗値Ｒ２とが
Ｒ２・ＲＨ＝Ｒ３（ＲＫ＋Ｒ１）を略満足するよ
うに前記各抵抗値Ｒ１，Ｒ２，Ｒ３，ＲＫ，ＲＨ
を設定し、 かつ前記ブリツジ回路から出力された電圧の増
幅率を調整する増幅率調整手段と、前記ブリツジ
回路から出力された電圧をオフセツト調整するオ
フセツト調整手段と、を備えたことを特徴とする
内燃機関の吸入空気流量検出装置。[Claims for Utility Model Registration] A temperature-sensitive electrical resistor disposed in the intake passage of an engine and a reference resistor are connected in series, and a temperature compensating resistor of the electrical resistor, a first fixed resistor, and a second resistor are connected in series. a fixed resistor is connected in series, and these series circuits are connected in parallel to form a bridge circuit such that the electric resistor and the second fixed resistor are located on the resisting side, and the current supplied to the bridge circuit is In an intake air flow rate detection device for an internal combustion engine, which is controlled based on an unbalanced voltage of a bridge circuit and outputs a voltage corresponding to an intake air flow rate from the bridge circuit, the resistance value RH of the electric resistor and the resistance of the reference resistance. so that the value R3 , the resistance value RK of the temperature compensation resistor, the resistance value R1 of the first fixed resistor, and the resistance value R2 of the second fixed resistor approximately satisfy R2・RH= R3 (RK+ R1 ). Each of the resistance values R 1 , R 2 , R 3 , RK, RH
and an amplification factor adjustment means for setting the amplification factor of the voltage output from the bridge circuit, and an offset adjustment means for offset adjusting the voltage output from the bridge circuit. Intake air flow rate detection device for internal combustion engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11883388U JPH0241117U (en) | 1988-09-12 | 1988-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11883388U JPH0241117U (en) | 1988-09-12 | 1988-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0241117U true JPH0241117U (en) | 1990-03-22 |
Family
ID=31363527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11883388U Pending JPH0241117U (en) | 1988-09-12 | 1988-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241117U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03119723U (en) * | 1990-03-23 | 1991-12-10 | ||
| JP2003014520A (en) * | 2001-07-04 | 2003-01-15 | Denso Corp | Adjustment method of air flow meter assembled type air cleaner and air flow meter assembled type air cleaner |
-
1988
- 1988-09-12 JP JP11883388U patent/JPH0241117U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03119723U (en) * | 1990-03-23 | 1991-12-10 | ||
| JP2003014520A (en) * | 2001-07-04 | 2003-01-15 | Denso Corp | Adjustment method of air flow meter assembled type air cleaner and air flow meter assembled type air cleaner |
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