JPH0443240U - - Google Patents
Info
- Publication number
- JPH0443240U JPH0443240U JP8455190U JP8455190U JPH0443240U JP H0443240 U JPH0443240 U JP H0443240U JP 8455190 U JP8455190 U JP 8455190U JP 8455190 U JP8455190 U JP 8455190U JP H0443240 U JPH0443240 U JP H0443240U
- Authority
- JP
- Japan
- Prior art keywords
- back plate
- hole
- plate surface
- pressure
- wave
- 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
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
- G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0663—Flame protection; Flame barriers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Description
第１図は本考案に係る差圧・圧力発信器の一実
施例を示すバツクプレート面の正面図、第２図は
その要部を拡大して示す概略断面図、第３図は差
圧発信器全体の概略構成を示す概略断面図である
。
１，２……検出部ボデイ、１ａ，２ａ……バツ
クプレート面、３，４……バリアダイヤフラム、
５，６，７ａ，７ｂ……測圧室、７……センタダ
イヤフラム、８ａ，８ｂ，９ａ，９ｂ……通孔、
１０，１１……封入回路、１４……半導体感圧セ
ンサ、１７……封入液（圧力伝達媒体）、１８…
…絞り部材、２０……細孔、２１……詰め物、２
２ａ……谷部、２２ｂ……山部。
Fig. 1 is a front view of the back plate surface showing an embodiment of the differential pressure/pressure transmitter according to the present invention, Fig. 2 is a schematic cross-sectional view showing an enlarged view of its main parts, and Fig. 3 is a differential pressure transmitter. It is a schematic sectional view showing the schematic structure of the whole container. 1, 2...detection unit body, 1a, 2a...back plate surface, 3, 4...barrier diaphragm,
5, 6, 7a, 7b...pressure measurement chamber, 7...center diaphragm, 8a, 8b, 9a, 9b...through hole,
10, 11...Enclosed circuit, 14...Semiconductor pressure-sensitive sensor, 17...Enclosed liquid (pressure transmission medium), 18...
...Aperture member, 20... Pore, 21... Filling, 2
2a...tanibe, 22b...yamabe.
Claims (1)
出部ボデイ側に形成された断面波形状を呈する円
形バツクプレート面を備え、かつこのバツクプレ
ート面に圧力伝達媒体流通用の通孔が開口して形
成されている差圧・圧力発信器において、 前記バツクプレート面における波形状の谷部に
該当する部分同士を連通する細孔を、前記通孔に
接続させた状態で、このバツクプレート面の面方
向に向かつて穿設したことを特徴とする差圧・圧
力発信器。[Scope of Claim for Utility Model Registration] A circular back plate surface with a wave-shaped cross section formed on the detection unit body side facing a wavy disc-shaped barrier diaphragm, and a pressure transmission medium is provided on this back plate surface. In the differential pressure/pressure transmitter formed by opening a through hole, a fine hole that communicates between the portions corresponding to the wave-shaped troughs on the back plate surface is connected to the through hole. , a differential pressure/pressure transmitter characterized in that a hole is formed facing the surface of the back plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8455190U JPH0443240U (en) | 1990-08-13 | 1990-08-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8455190U JPH0443240U (en) | 1990-08-13 | 1990-08-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0443240U true JPH0443240U (en) | 1992-04-13 |
Family
ID=31633112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8455190U Pending JPH0443240U (en) | 1990-08-13 | 1990-08-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0443240U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011524984A (en) * | 2008-06-20 | 2011-09-08 | ローズマウント インコーポレイテッド | Pressure transducer including a capillary tube having a non-cylindrical lumen |
-
1990
- 1990-08-13 JP JP8455190U patent/JPH0443240U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011524984A (en) * | 2008-06-20 | 2011-09-08 | ローズマウント インコーポレイテッド | Pressure transducer including a capillary tube having a non-cylindrical lumen |