JPS60135618U - hot wire flowmeter - Google Patents
hot wire flowmeterInfo
- Publication number
- JPS60135618U JPS60135618U JP2241884U JP2241884U JPS60135618U JP S60135618 U JPS60135618 U JP S60135618U JP 2241884 U JP2241884 U JP 2241884U JP 2241884 U JP2241884 U JP 2241884U JP S60135618 U JPS60135618 U JP S60135618U
- Authority
- JP
- Japan
- Prior art keywords
- hot wire
- bridge circuit
- temperature compensation
- compensation resistor
- electrically
- 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.)
- Granted
Links
Landscapes
- Measuring Volume Flow (AREA)
- Details Of Flowmeters (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、従来一般的な熱線式流量計の要部回路図、第
２図は、同上の熱線式流量計を内燃機関に取り付けたも
のの要部拡大図、第３図は、同上の熱線式流量計に使用
される円柱型の温度補償抵抗とその熱伝導による温度分
布特性を示す図、第４図は、従来の平板型温度補償抵抗
とその取付部を示す斜視図、第５図は、本考案の第１の
実施例に係る円柱型の温度補償抵抗及びその取付部を示
した正面図、第６図は、同上の温度補償抵抗の熱伝導に
よる温度分布特性を示す図、第７図は、本考案の第２の
実施例に係る平板型の温度補償抵抗を示す斜視図である
。
２１・・・バイパス通路、２２Ａ、２２Ｂ・・・リード
線、２３・・・温度補償抵抗、２３ａ・・・円柱基材、
２３ｂ、２３ｃ・・・リード棒、２３ｄ−・・抵抗線、
２３ｅ、２３ｆ・・・金属被膜、・３１・・・温度補償
抵抗、３１ａ・・・基板、３１ｂ・・・抵抗線、３１ｃ
、３１ｄ・・・金属被膜、３２Ａ、３２Ｂ・・・リード
プレート。
第２図
第４図Figure 1 is a circuit diagram of the main parts of a conventionally common hot wire flowmeter, Figure 2 is an enlarged view of the main parts of the same hot wire flowmeter attached to an internal combustion engine, and Figure 3 is a circuit diagram of the same hot wire flowmeter as above. A diagram showing a cylindrical temperature compensation resistor used in a type flow meter and its temperature distribution characteristics due to heat conduction. Figure 4 is a perspective view of a conventional flat plate temperature compensation resistor and its mounting part. Figure 5 is a diagram showing the temperature distribution characteristics due to heat conduction. , a front view showing a cylindrical temperature compensation resistor and its mounting part according to the first embodiment of the present invention, FIG. 6 is a diagram showing temperature distribution characteristics due to heat conduction of the same temperature compensation resistor, and FIG. The figure is a perspective view showing a flat plate temperature compensation resistor according to a second embodiment of the present invention. 21... Bypass passage, 22A, 22B... Lead wire, 23... Temperature compensation resistor, 23a... Cylindrical base material,
23b, 23c...Lead rod, 23d-...Resistance wire,
23e, 23f...Metal coating, 31...Temperature compensation resistor, 31a...Substrate, 31b...Resistance wire, 31c
, 31d...metal coating, 32A, 32B... lead plate. Figure 2 Figure 4
Claims (1)
中に配設される温度補償抵抗を流体通路壁に立設したリ
ード部材を介して電気的に接続して固定支持すると共に
、これら抵抗を含んで形成したブリッジ回路が電気的に
平衡するようにブリッジ回路への供給電流を制御して、
この供給電流値から流体の流量を計測する熱線式流量計
においてミ前記熱線及び温度補償抵抗の少なくとも一方
゛の抵抗本体とリード部材との間を、熱伝導率小の電気
絶縁部材で形成した基材の表面に施した金属被膜により
電気的に接続した構成としたことを特徴とする熱線式流
量計。A hot wire disposed in the fluid passage and a temperature compensation resistor disposed in the same atmosphere as the hot wire are electrically connected and fixedly supported via a lead member erected on the fluid passage wall, and these resistors The current supplied to the bridge circuit is controlled so that the bridge circuit formed by including the bridge circuit is electrically balanced.
In a hot wire flow meter that measures the flow rate of fluid from this supplied current value, a base formed of an electrically insulating material with low thermal conductivity is connected between the resistor body and the lead member of at least one of the hot wire and the temperature compensation resistor. A hot wire flowmeter characterized by an electrically connected structure using a metal coating applied to the surface of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2241884U JPS60135618U (en) | 1984-02-21 | 1984-02-21 | hot wire flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2241884U JPS60135618U (en) | 1984-02-21 | 1984-02-21 | hot wire flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60135618U true JPS60135618U (en) | 1985-09-09 |
| JPH0334649Y2 JPH0334649Y2 (en) | 1991-07-23 |
Family
ID=30514691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2241884U Granted JPS60135618U (en) | 1984-02-21 | 1984-02-21 | hot wire flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60135618U (en) |
-
1984
- 1984-02-21 JP JP2241884U patent/JPS60135618U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0334649Y2 (en) | 1991-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4870860A (en) | Direct-heated flow measuring apparatus having improved response characteristics | |
| JPH0330091B2 (en) | ||
| JP2682348B2 (en) | Air flow meter and air flow detection method | |
| JPH06273435A (en) | Heat-generating resistor element and heat-type air flowmeter | |
| US4715224A (en) | Method and apparatus for measuring the mass of a flowing medium | |
| JP2648358B2 (en) | Air volume measuring device and method of manufacturing the same | |
| JPS60135618U (en) | hot wire flowmeter | |
| JPH05231899A (en) | Intake air amount detector | |
| JPH0422266Y2 (en) | ||
| JPS62111519U (en) | ||
| JPS5882610U (en) | magnetic compass | |
| JPH0514179Y2 (en) | ||
| JPS6042374Y2 (en) | hot wire current meter | |
| JPS60106124U (en) | Tank truck liquid level detection device | |
| JPS60152928U (en) | hot wire flowmeter | |
| JPH0138496Y2 (en) | ||
| JPS62147319A (en) | Direct heating type flow sensor | |
| JPS58148623U (en) | Structure of temperature-sensitive resistor of thermal flowmeter | |
| JPH0428021Y2 (en) | ||
| JPH0441932B2 (en) | ||
| JPS60100617U (en) | hot wire flowmeter | |
| JPH0441933B2 (en) | ||
| JPS6199019U (en) | ||
| JPS6360920U (en) | ||
| JPS6284712U (en) |