JPS6418018A - Process value detector - Google Patents
Process value detectorInfo
- Publication number
- JPS6418018A JPS6418018A JP17536287A JP17536287A JPS6418018A JP S6418018 A JPS6418018 A JP S6418018A JP 17536287 A JP17536287 A JP 17536287A JP 17536287 A JP17536287 A JP 17536287A JP S6418018 A JPS6418018 A JP S6418018A
- Authority
- JP
- Japan
- Prior art keywords
- value
- flow rate
- detection
- detectors
- outputted
- 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
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Safety Devices In Control Systems (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
PURPOSE:To obtain reliability effect equal to that in the triplication of a detector concerning a control system which is difficult in the triplication thereof, by outputting a command signal when an absolute value of a difference between detection values is above a specified value, as computed from two detectors which detect the same process values to select one detection value on a basis of a specified rule. CONSTITUTION:One of the detection values of two flow rate detectors 2 and 3 is selected 4 on a basis of a specified rule. A flow rate of heavy oil is estimated 6 based on a detection value or the like of an air flow rate detector 12 of a flow rate of air as other process value in a fixed correlationship with a desired flow rate of heavy oil. Based on the estimated flow rate, either of detection values of the detectors 2 and 3 is determined 7 to be a true value and outputted. On the other hand, a command signal is generated 5 when a difference between detection values of the detectors 2 and 3 is above a specified value. Thus, normally, when the detection value selected 4 with an output switch 8 is outputted and a command signal is generated 5, it is switched over to a detection value previously determined 7 to be a true value and outputted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17536287A JPS6418018A (en) | 1987-07-14 | 1987-07-14 | Process value detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17536287A JPS6418018A (en) | 1987-07-14 | 1987-07-14 | Process value detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6418018A true JPS6418018A (en) | 1989-01-20 |
Family
ID=15994754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17536287A Pending JPS6418018A (en) | 1987-07-14 | 1987-07-14 | Process value detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6418018A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1084688A (en) * | 1996-08-20 | 1998-03-31 | Samsung Electron Co Ltd | Sensor for detecting abnormality in motor and its method |
JP2002535611A (en) * | 1999-01-14 | 2002-10-22 | ガンブロ アクチボラグ | Method and apparatus for testing a sensor |
JP5901813B1 (en) * | 2015-03-11 | 2016-04-13 | 三菱電機株式会社 | Pressure sensor failure detection device |
-
1987
- 1987-07-14 JP JP17536287A patent/JPS6418018A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1084688A (en) * | 1996-08-20 | 1998-03-31 | Samsung Electron Co Ltd | Sensor for detecting abnormality in motor and its method |
JP2002535611A (en) * | 1999-01-14 | 2002-10-22 | ガンブロ アクチボラグ | Method and apparatus for testing a sensor |
JP5901813B1 (en) * | 2015-03-11 | 2016-04-13 | 三菱電機株式会社 | Pressure sensor failure detection device |
JP2016169949A (en) * | 2015-03-11 | 2016-09-23 | 三菱電機株式会社 | Pressure sensor failure detection device |
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