JP2003337076A5 - - Google Patents
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- JP2003337076A5 JP2003337076A5 JP2002142792A JP2002142792A JP2003337076A5 JP 2003337076 A5 JP2003337076 A5 JP 2003337076A5 JP 2002142792 A JP2002142792 A JP 2002142792A JP 2002142792 A JP2002142792 A JP 2002142792A JP 2003337076 A5 JP2003337076 A5 JP 2003337076A5
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- Prior art keywords
- differential pressure
- heating
- measuring device
- heat medium
- measurement
- 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.)
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Description
【００１２】
【課題を解決するための手段】
このような目的を達成するために、本発明では、請求項１の差圧測定装置においては、
導圧管を介して差圧測定装置本体に測定流体が導入される差圧測定装置において、
前記導圧管あるいは前記差圧測定装置本体に設けられ前記測定流体を加熱あるいは冷却しこの測定流体を膨張あるいは収縮させる加熱冷却手段と、この加熱冷却手段の動作時に生じる出力変化のパターンを差圧測定装置の正常時と比較し差圧測定装置の導圧管の異常を検知する検知手段とを具備したことを特徴とする。[0012]
[Means for Solving the Problems]
In order to achieve such an object, in the present invention, in the differential pressure measuring device of claim 1,
In a differential pressure measurement device in which a measurement fluid is introduced to a differential pressure measurement device main body via a pressure guiding tube,
Heating and cooling means provided in the pressure guiding tube or the differential pressure measuring device body for heating or cooling the measurement fluid and expanding or contracting the measurement fluid, and measurement of differential pressure patterns of output change occurring during operation of the heating / cooling means And a detection means for detecting an abnormality in the pressure guiding tube of the differential pressure measurement device as compared to the normal state of the device.
Claims (5)
前記導圧管あるいは前記差圧測定装置本体に設けられ前記測定流体を加熱あるいは冷却しこの測定流体を膨張あるいは収縮させる加熱冷却手段と、
この加熱冷却手段の動作時に生じる出力変化のパターンを差圧測定装置の正常時と比較し差圧測定装置の導圧管の異常を検知する検知手段と
を具備したことを特徴とする差圧測定装置。In a differential pressure measurement device in which a measurement fluid is introduced to a differential pressure measurement device main body via a pressure guiding tube,
Heating / cooling means provided in the pressure guiding tube or the differential pressure measuring device main body to heat or cool the measurement fluid and expand or contract the measurement fluid;
A differential pressure measuring apparatus comprising: detection means for detecting an abnormality in the pressure guiding tube of the differential pressure measuring device by comparing a pattern of output change occurring at the time of operation of the heating and cooling means with that at normal time of the differential pressure measuring device. .
を有する加熱冷却手段
を具備した事を特徴とする請求項１記載の差圧測定装置。The differential pressure measuring device is characterized in that it comprises a heating and cooling means provided on the outer surface of the cover of the measurement fluid pressure receiving chamber of the differential pressure measurement device and having a heat medium adapter through which a heat medium for heating or cooling the measurement fluid flows. The differential pressure measurement device according to claim 1.
を有する加熱冷却手段
を具備した事を特徴とする請求項１記載の差圧測定装置。The heating / cooling means having a heat medium chamber provided in the cover of the measurement fluid pressure receiving chamber of the differential pressure measurement device main body through which the heat medium for heating or cooling the measurement fluid flows is provided. Differential pressure measuring device.
を有する加熱冷却手段
を具備した事を特徴とする請求項１記載の差圧測定装置。A pressure guiding tube cover which surrounds a pressure guiding tube in the vicinity of the differential pressure measuring device main body and which constitutes a heat medium chamber through which a heat medium for heating or cooling the measurement fluid flows.
The differential pressure measuring device according to claim 1, further comprising a heating and cooling means having the following.
を特徴とする請求項１記載の差圧測定装置。The differential pressure measuring device according to claim 1, wherein an electric heater is used as the heat medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002142792A JP3718847B2 (en) | 2002-05-17 | 2002-05-17 | Differential pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002142792A JP3718847B2 (en) | 2002-05-17 | 2002-05-17 | Differential pressure measuring device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003337076A JP2003337076A (en) | 2003-11-28 |
| JP2003337076A5 true JP2003337076A5 (en) | 2004-11-18 |
| JP3718847B2 JP3718847B2 (en) | 2005-11-24 |
Family
ID=29702970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002142792A Expired - Fee Related JP3718847B2 (en) | 2002-05-17 | 2002-05-17 | Differential pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3718847B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2882141B1 (en) * | 2005-02-14 | 2007-05-04 | Airbus France Sas | METHOD AND DEVICE FOR DETECTING IN THE GROUND THE OBSTRUCTION OF A PRESSURE SOCKET OF A STATIC PRESSURE SENSOR OF AN AIRCRAFT |
| US7918134B2 (en) * | 2008-10-06 | 2011-04-05 | Rosemount Inc. | Thermal-based diagnostic system for process transmitter |
| CN110514351A (en) * | 2019-08-29 | 2019-11-29 | 广州敏华仪器仪表有限公司 | A kind of coplanar differential pressure transmitter |
| CN110514347A (en) * | 2019-08-29 | 2019-11-29 | 广州敏华仪器仪表有限公司 | A kind of coplanar suspension absolute pressure transducer |
-
2002
- 2002-05-17 JP JP2002142792A patent/JP3718847B2/en not_active Expired - Fee Related
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