JPH0181524U - - Google Patents
Info
- Publication number
- JPH0181524U JPH0181524U JP1987178463U JP17846387U JPH0181524U JP H0181524 U JPH0181524 U JP H0181524U JP 1987178463 U JP1987178463 U JP 1987178463U JP 17846387 U JP17846387 U JP 17846387U JP H0181524 U JPH0181524 U JP H0181524U
- Authority
- JP
- Japan
- Prior art keywords
- pipe section
- flow rate
- rate sensor
- synthetic resin
- sensor according
- 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
- 239000002184 metal Substances 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Measuring Volume Flow (AREA)
Description
図面第１図、第２図は本考案に係る微少流量セ
ンサの実施例を示し、第１図は構成図、第２図は
温度分布のグラフ図であり、第３図は従来の流量
センサの構成図、第４図はその特性図である。
符号１０は流管、１１，１２はＴ型ジヨイント
、１３はサーミスタ測温素子、１４は合成樹脂管
、１５は継手、１６は金属管、１７はヒータであ
る。
Figures 1 and 2 show an embodiment of the minute flow rate sensor according to the present invention, Figure 1 is a configuration diagram, Figure 2 is a graph of temperature distribution, and Figure 3 is a diagram of a conventional flow rate sensor. The configuration diagram and FIG. 4 are its characteristic diagrams. 10 is a flow tube, 11 and 12 are T-shaped joints, 13 is a thermistor temperature measuring element, 14 is a synthetic resin tube, 15 is a joint, 16 is a metal tube, and 17 is a heater.
Claims (1)
、下流側の外壁部に発熱体を付設しけた金属管部
を設け、前記合成樹脂管部の上流側内及び前記金
属管部の下流側内とにそれぞれサーミスタ測温素
子を設置したことを特徴とする微少流量センサ。 ２ 前記金属管部は前記発熱体設置部分のみ肉厚
を薄くした実用新案登録請求の範囲第１項に記載
の微少流量センサ。 ３ 前記サーミスタ測温素子はＴ型ジヨイントに
よつて管内に挿入した実用新案登録請求の範囲第
１項に記載の微少流量センサ。[Scope of Claim for Utility Model Registration] 1. A synthetic resin pipe section having heat insulating properties is provided on the upstream side, a metal pipe section with a heating element attached is provided on the outer wall section on the downstream side, and the inside of the synthetic resin pipe section on the upstream side and a thermistor temperature measuring element installed on the downstream side of the metal pipe portion, respectively. 2. The minute flow rate sensor according to claim 1, wherein the metal tube portion has a thinner wall thickness only at the portion where the heating element is installed. 3. The minute flow rate sensor according to claim 1, wherein the thermistor temperature measuring element is inserted into the pipe by a T-shaped joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17846387U JPH074509Y2 (en) | 1987-11-24 | 1987-11-24 | Micro flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17846387U JPH074509Y2 (en) | 1987-11-24 | 1987-11-24 | Micro flow sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0181524U true JPH0181524U (en) | 1989-05-31 |
| JPH074509Y2 JPH074509Y2 (en) | 1995-02-01 |
Family
ID=31470078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17846387U Expired - Lifetime JPH074509Y2 (en) | 1987-11-24 | 1987-11-24 | Micro flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074509Y2 (en) |
-
1987
- 1987-11-24 JP JP17846387U patent/JPH074509Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH074509Y2 (en) | 1995-02-01 |
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