JPS61199642U - - Google Patents
Info
- Publication number
- JPS61199642U JPS61199642U JP8395285U JP8395285U JPS61199642U JP S61199642 U JPS61199642 U JP S61199642U JP 8395285 U JP8395285 U JP 8395285U JP 8395285 U JP8395285 U JP 8395285U JP S61199642 U JPS61199642 U JP S61199642U
- Authority
- JP
- Japan
- Prior art keywords
- protector
- pressure sensor
- seal diaphragm
- fluid
- pressure
- 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
- 230000001012 protector Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims 5
- 239000011148 porous material Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Description
第１図は本考案の圧力センサの第１の実施例の
要部を示す断面図、第２図は本考案の第２の実施
例の要部を示す断面図、第３図は本考案の第３の
実施例の要部を示す断面図、第４図は本考案の第
４の実施例の要部を示す断面図、第５図は従来の
圧力センサの配管装着時の状態を示す断面図、第
６図は第５図に示す圧力センサの作動原理を示す
要部断面図、第７図および第８図はそれぞれ第５
図に示す圧力センサにおける不具合を説明する断
面図である。
１……圧力センサ、３……作動油（流体）、４
……シリコンダイヤフラム、５……ガラス台、６
……シリコンオイル（密封液）、７……シールダ
イヤフラム、８……プロテクタ、２１……小孔、
２４……板体、２５……小孔、２６……多孔体。
FIG. 1 is a sectional view showing the main parts of the first embodiment of the pressure sensor of the present invention, FIG. 2 is a sectional view showing the main parts of the second embodiment of the invention, and FIG. FIG. 4 is a cross-sectional view showing the main parts of the fourth embodiment of the present invention; FIG. 5 is a cross-sectional view showing the state of the conventional pressure sensor when it is installed in piping. Figure 6 is a sectional view of the main part showing the operating principle of the pressure sensor shown in Figure 5, and Figures 7 and 8 are respectively
It is a sectional view explaining a malfunction in the pressure sensor shown in the figure. 1... Pressure sensor, 3... Hydraulic oil (fluid), 4
...Silicon diaphragm, 5...Glass stand, 6
... Silicone oil (sealing liquid), 7 ... Seal diaphragm, 8 ... Protector, 21 ... Small hole,
24... Plate body, 25... Small hole, 26... Porous body.
Claims (1)
や閉するシールダイヤフラムと、このシールダイ
ヤフラムを外力から保護し、流体の流通が可能な
プロテクタとを備え、該プロテクタを経て該シー
ルダイヤフラムに作用する流体の圧力につり合う
圧力を上記密封液に発生させ、該密封液の圧力を
起歪部に作用させることによつて該流体の圧力を
検出する圧力センサにおいて、上記プロテクタを
経て上記シールダイヤフラムに流入する流体の流
れを分散する分散手段を設けたことを特徴とする
圧力センサ。 ２ 分散手段が、プロテクタに形成した多数の穴
からなることを特徴とする実用新案登録請求の範
囲第１項記載の圧力センサ。 ３ 分散手段が、多孔質材料からなるプロテクタ
であることを特徴とする実用新案登録請求の範囲
第１項記載の圧力センサ。 ４ 分散手段が、プロテクタとシールダイヤフラ
ムとの間に配置した板体であることを特徴とする
実用新案登録請求の範囲第１項記載の圧力センサ
。 ５ 分散手段が、プロテクタとシールダイヤフラ
ムとの間に配置した多孔体であることを特徴とす
る実用新案登録請求の範囲第１項記載の圧力セン
サ。[Claims for Utility Model Registration] 1. A system comprising a sealing liquid that protects a strain-generating part, a seal diaphragm that seals this sealing liquid, and a protector that protects this seal diaphragm from external force and allows fluid to flow through it. , a pressure sensor that detects the pressure of the fluid by generating a pressure in the sealing fluid that is balanced with the pressure of the fluid acting on the seal diaphragm via the protector, and applying the pressure of the sealing fluid to the strain-generating portion. A pressure sensor characterized in that a dispersion means is provided for dispersing the flow of fluid flowing into the seal diaphragm via the protector. 2. The pressure sensor according to claim 1, wherein the dispersion means comprises a large number of holes formed in the protector. 3. The pressure sensor according to claim 1, wherein the dispersion means is a protector made of a porous material. 4. The pressure sensor according to claim 1, wherein the dispersion means is a plate disposed between the protector and the seal diaphragm. 5. The pressure sensor according to claim 1, wherein the dispersion means is a porous body disposed between the protector and the seal diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8395285U JPS61199642U (en) | 1985-06-05 | 1985-06-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8395285U JPS61199642U (en) | 1985-06-05 | 1985-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61199642U true JPS61199642U (en) | 1986-12-13 |
Family
ID=30633043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8395285U Pending JPS61199642U (en) | 1985-06-05 | 1985-06-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61199642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2832894B2 (en) * | 1988-07-26 | 1998-12-09 | 日立建機株式会社 | Pressure sensor, method of manufacturing the same, and hydraulic equipment including pressure sensor |
-
1985
- 1985-06-05 JP JP8395285U patent/JPS61199642U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2832894B2 (en) * | 1988-07-26 | 1998-12-09 | 日立建機株式会社 | Pressure sensor, method of manufacturing the same, and hydraulic equipment including pressure sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61199642U (en) | ||
| JPS591802U (en) | Sealing device | |
| JPH0163873U (en) | ||
| JPS6061540U (en) | liquid filled mount | |
| JPS58132842U (en) | Differential pressure/pressure transmitter | |
| JPS58160327U (en) | Differential pressure detection device | |
| JPS5842455U (en) | Mechanical seal load adjustment device | |
| JPH0361547U (en) | ||
| JPS5992204U (en) | Diaphragm actuator | |
| JPS59149039U (en) | semiconductor differential pressure detector | |
| JPS58125853U (en) | Detection end of differential pressure/pressure transmitter | |
| JPS58134747U (en) | damping mechanism | |
| JPH02144786U (en) | ||
| JPS5884461U (en) | relief valve | |
| JPS5870573U (en) | Direct acting directional valve | |
| JPS6020452U (en) | Load responsive hydraulic control valve | |
| JPS6021923U (en) | Flow rate/flow rate detection device | |
| JPH0363787U (en) | ||
| JPS5842454U (en) | Mechanical seal leak prevention device | |
| JPS62114334U (en) | ||
| JPS6130841U (en) | Damping mechanism of differential pressure/pressure transmitter | |
| JPS5851243U (en) | Differential pressure gauge shock wave protection device | |
| JPS6028369U (en) | differential pressure valve | |
| JPS5856939U (en) | Differential pressure detection end | |
| JPH02133645U (en) |