JPS59158031U - hot wire flowmeter - Google Patents
hot wire flowmeterInfo
- Publication number
- JPS59158031U JPS59158031U JP5141483U JP5141483U JPS59158031U JP S59158031 U JPS59158031 U JP S59158031U JP 5141483 U JP5141483 U JP 5141483U JP 5141483 U JP5141483 U JP 5141483U JP S59158031 U JPS59158031 U JP S59158031U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- hot wire
- bridge circuit
- series
- temperature
- 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
Landscapes
- Details Of Flowmeters (AREA)
- Measuring Volume Flow (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例を示す回路図、第２図は本考案を説明す
るための回路図である。
１・・・熱線抵抗、２・・・出力抵抗、３ａ・・・温度
補償抵抗、１１・・・第１の基準抵抗、１２・・・第２
の基準抵抗。 −FIG. 1 is a circuit diagram showing a conventional example, and FIG. 2 is a circuit diagram for explaining the present invention. DESCRIPTION OF SYMBOLS 1... Hot wire resistance, 2... Output resistance, 3a... Temperature compensation resistance, 11... First reference resistance, 12... Second
standard resistance. −
Claims (1)
続すると共に前記熱線抵抗の温度補償用抵抗と第１及び
第２の基準抵抗とを直列接続しこれら２直列回路を並列
接続してブリッジ回路を構成し、またＲ１の抵抗値を有
する前記温度補償用抵抗を前記流体通路蓋しくはその近
傍に配設すると共にＲ２の抵抗値を有する前記第１の基
準抵抗と、第２の基準抵抗と、を前記熱線抵抗から離間
する位置に配設し、前記ブリッジ回路の非平衡電圧に基
づいてブリッジ回路の印加電圧を調節し、前記出力抵抗
の電圧に基づいて流量を検出する熱線式流量計において
、前記第１の基準抵抗の温度係数αと第２の基準抵抗の
温度数βとの関係がα＝ （１＋Ｆ）βを満足する抵抗
としたことを特徴とする熱線式流量計。A hot wire resistor disposed in a fluid passage and an output resistor are connected in series, a temperature compensation resistor of the hot wire resistor and first and second reference resistors are connected in series, and these two series circuits are connected in parallel. The temperature compensating resistor forming a bridge circuit and having a resistance value of R1 is arranged at or near the fluid passage cover, and the first reference resistor having a resistance value of R2 and a second reference resistor. a resistor, the hot wire flow rate is arranged at a position apart from the hot wire resistor, the applied voltage of the bridge circuit is adjusted based on the unbalanced voltage of the bridge circuit, and the flow rate is detected based on the voltage of the output resistor. 1. A hot wire flow meter, characterized in that the relationship between the temperature coefficient α of the first reference resistance and the temperature number β of the second reference resistance satisfies α=(1+F)β.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5141483U JPS59158031U (en) | 1983-04-08 | 1983-04-08 | hot wire flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5141483U JPS59158031U (en) | 1983-04-08 | 1983-04-08 | hot wire flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59158031U true JPS59158031U (en) | 1984-10-23 |
Family
ID=30181822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5141483U Pending JPS59158031U (en) | 1983-04-08 | 1983-04-08 | hot wire flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59158031U (en) |
-
1983
- 1983-04-08 JP JP5141483U patent/JPS59158031U/en active Pending
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