JPS56160611A - Analog quantity indicator - Google Patents
Analog quantity indicatorInfo
- Publication number
- JPS56160611A JPS56160611A JP6482180A JP6482180A JPS56160611A JP S56160611 A JPS56160611 A JP S56160611A JP 6482180 A JP6482180 A JP 6482180A JP 6482180 A JP6482180 A JP 6482180A JP S56160611 A JPS56160611 A JP S56160611A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- input
- switch
- indicated
- contact
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/06—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for operation by a null method
- G01D3/063—Comparing the measuring value with a reference value which periodically or incidentally scans the measuring range
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
PURPOSE:To enable both absolute and relative values to be read, by adding a standard value comparing circuit and a reference value comparing circuit to a conventional indicator, and changing over the output signals and the input signals of these comparing circuits to each other to display on the analog quantity indicator. CONSTITUTION:When the contact 1-1 side of a switch 2 is connected to a sensitivity regulator 11, the voltage applied to an input terminal 1 is indicated on an analog indicator 12. On the other hand, when the contact 1-2 side of the switch 2 is connected to the sensitivity regulator 11, and the contact 2-1 side of a switch 3 is connected to an input 13 of a differential amplifier 8, the voltage obtained by subtracting the voltage set by a standard value circuit 5 from the voltage applied to the input terminal 1 is indicated 12. Then, to indicate the difference between the input voltage and a reference voltage which is the input voltage, changing every moment, at an arbitrary time, a switch 4 is connected, and the input voltage at an arbitrary time is held 6. Then, the difference between the held value is obtained 8 and 9 and indicated 12.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6482180A JPS56160611A (en) | 1980-05-16 | 1980-05-16 | Analog quantity indicator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6482180A JPS56160611A (en) | 1980-05-16 | 1980-05-16 | Analog quantity indicator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56160611A true JPS56160611A (en) | 1981-12-10 |
Family
ID=13269292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6482180A Pending JPS56160611A (en) | 1980-05-16 | 1980-05-16 | Analog quantity indicator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56160611A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58129315A (en) * | 1982-01-29 | 1983-08-02 | Mitsubishi Heavy Ind Ltd | Abnormality detecting device in plant |
JPS60192207A (en) * | 1984-03-13 | 1985-09-30 | Nittan Co Ltd | Detecting device for preventing disaster |
-
1980
- 1980-05-16 JP JP6482180A patent/JPS56160611A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58129315A (en) * | 1982-01-29 | 1983-08-02 | Mitsubishi Heavy Ind Ltd | Abnormality detecting device in plant |
JPS60192207A (en) * | 1984-03-13 | 1985-09-30 | Nittan Co Ltd | Detecting device for preventing disaster |
JPH0473084B2 (en) * | 1984-03-13 | 1992-11-19 | Nittan Co Ltd |
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