JPS6412U - - Google Patents
Info
- Publication number
- JPS6412U JPS6412U JP9361987U JP9361987U JPS6412U JP S6412 U JPS6412 U JP S6412U JP 9361987 U JP9361987 U JP 9361987U JP 9361987 U JP9361987 U JP 9361987U JP S6412 U JPS6412 U JP S6412U
- Authority
- JP
- Japan
- Prior art keywords
- hot
- wire
- heat dissipation
- bridge circuit
- resistance
- 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
- 230000017525 heat dissipation Effects 0.000 claims 3
- 239000012530 fluid Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図はこの考案に係る熱線流量計の構成図、
第２図は従来の熱線流量計の構成図、第３図は従
来の熱線流量計の特性図である。
１０……吸気管、１２，１４〜１６……抵抗、
１９，２０……熱線抵抗、２１……切換スイツチ
。
Figure 1 is a configuration diagram of the hot wire flowmeter according to this invention.
FIG. 2 is a configuration diagram of a conventional hot wire flowmeter, and FIG. 3 is a characteristic diagram of the conventional hot wire flowmeter. 10... Intake pipe, 12, 14-16... Resistance,
19, 20... Hot wire resistance, 21... Changeover switch.
Claims (1)
定された熱線抵抗を含む抵抗ブリツジ回路を構成
し、その出力により流量を測定する熱線流量計に
おいて、上記熱線抵抗を熱放散係数が異る二つの
熱線抵抗により構成し、かつ低流量域では熱放散
係数が大きな熱線抵抗をブリツジ回路に接続する
とともに高流量域では熱放散係数が大きな熱線抵
抗をブリツジ回路に接続する切換スイツチを設け
たことを特徴とする熱線流量計。 In a hot-wire flowmeter that constitutes a resistance bridge circuit that includes a hot-wire resistance placed in a fluid passage and set at a higher temperature than the fluid, and that measures the flow rate based on its output, the hot-wire resistance is connected to two circuits with different heat dissipation coefficients. It consists of a hot wire resistor and is characterized by a changeover switch that connects the hot wire resistor with a large heat dissipation coefficient to the bridge circuit in the low flow range and connects the hot wire resistor with a large heat dissipation coefficient to the bridge circuit in the high flow range. Hot wire flow meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9361987U JPS6412U (en) | 1987-06-17 | 1987-06-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9361987U JPS6412U (en) | 1987-06-17 | 1987-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6412U true JPS6412U (en) | 1989-01-05 |
Family
ID=30956350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9361987U Pending JPS6412U (en) | 1987-06-17 | 1987-06-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0356306U (en) * | 1989-10-05 | 1991-05-30 |
-
1987
- 1987-06-17 JP JP9361987U patent/JPS6412U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0356306U (en) * | 1989-10-05 | 1991-05-30 |
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