JPH01128125U - - Google Patents
Info
- Publication number
- JPH01128125U JPH01128125U JP2333488U JP2333488U JPH01128125U JP H01128125 U JPH01128125 U JP H01128125U JP 2333488 U JP2333488 U JP 2333488U JP 2333488 U JP2333488 U JP 2333488U JP H01128125 U JPH01128125 U JP H01128125U
- Authority
- JP
- Japan
- Prior art keywords
- heat
- sensitive resistor
- sensitive
- flow
- chip
- 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
- 239000000463 material Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Description
第１図ａ，ｂはこの考案による熱線式空気流量
センサの感熱抵抗体の正面図及び斜視図、第２図
ａ，ｂは従来の感熱式空気流量センサの縦断正面
図及び側面図、第３図は従来の感熱式空気流量セ
ンサの回路図、第４図ａ，ｂは従来の感熱式流量
センサの感熱抵抗体の正面図及び側面図である。
１……円筒状ハウジング、２……計測用管路、
５……制御回路、１２ａ……薄板基材、１２ｂ…
…感熱抵抗部、ＲＨ……感熱抵抗体、ＲＣ……空
気温センサ、Ｒ１，Ｒ２……抵抗。尚、図中同一
符号は同一又は相当部分を示す。
Figures 1a and b are front and perspective views of the heat-sensitive resistor of the hot-wire type air flow sensor according to this invention, Figures 2a and b are longitudinal sectional front and side views of the conventional heat-sensitive air flow sensor, and Figure 3 The figure is a circuit diagram of a conventional heat-sensitive air flow sensor, and FIGS. 4a and 4b are front and side views of a heat-sensitive resistor of the conventional heat-sensitive air flow sensor. 1... Cylindrical housing, 2... Measurement conduit,
5...Control circuit, 12a...Thin plate base material, 12b...
...heat-sensitive resistor, RH...heat-sensitive resistor, RC...air temperature sensor, R1 , R2 ...resistance. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
抗とより構成されたブリツジ回路と、上記感熱抵
抗体への通電々流を制御して上記ブリツジ回路が
所定の平衡状態を保つように制御する制御回路を
備え、平衡状態から流量を検出する感熱式流量セ
ンサにおいて、感熱抵抗体を薄板基材の平面上に
温度によつて抵抗値が変化する感熱抵抗部が形成
されたチツプ型感熱抵抗体とし、このチツプ型感
熱抵抗体を流体の流れと平行に配設したことを特
徴とする感熱式流量センサ。 A bridge circuit composed of a heat-sensitive resistor and a plurality of resistors disposed in a fluid passage, and a current flow to the heat-sensitive resistor is controlled so that the bridge circuit maintains a predetermined equilibrium state. In a heat-sensitive flow sensor that detects flow rate from an equilibrium state, the heat-sensitive resistor is a chip-type heat-sensitive resistor in which a heat-sensitive resistor whose resistance value changes depending on the temperature is formed on a flat surface of a thin plate base material. A heat-sensitive flow sensor characterized in that the chip-type heat-sensitive resistor is arranged parallel to the flow of fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2333488U JPH01128125U (en) | 1988-02-24 | 1988-02-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2333488U JPH01128125U (en) | 1988-02-24 | 1988-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01128125U true JPH01128125U (en) | 1989-09-01 |
Family
ID=31242231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2333488U Pending JPH01128125U (en) | 1988-02-24 | 1988-02-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01128125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014119257A (en) * | 2012-12-13 | 2014-06-30 | Mitsubishi Materials Corp | Air flow sensor |
-
1988
- 1988-02-24 JP JP2333488U patent/JPH01128125U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014119257A (en) * | 2012-12-13 | 2014-06-30 | Mitsubishi Materials Corp | Air flow sensor |
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