JPS54137379A - Converter - Google Patents
ConverterInfo
- Publication number
- JPS54137379A JPS54137379A JP4614378A JP4614378A JPS54137379A JP S54137379 A JPS54137379 A JP S54137379A JP 4614378 A JP4614378 A JP 4614378A JP 4614378 A JP4614378 A JP 4614378A JP S54137379 A JPS54137379 A JP S54137379A
- Authority
- JP
- Japan
- Prior art keywords
- capacity
- igfetq
- charge
- capacity element
- preset
- 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.)
- Granted
Links
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
PURPOSE: To make it possible to process the varying information at a high speed and in high accuracy by converting the capacity difference between a varying capacity element and a preset capacity of a pressure sensor into a pulse number.
CONSTITUTION: There are arranged an IGFEDTQ1 for charging an unknown varying capacity element Cx and a known capacity element Cs, an IGFETQ2 for detecting a level, an IGFETQ3 for charging a capacity element CB for detecting the output level, an IGFETQ4 for transferring a preset charge from the capacitors Cx and Cs to a counting capacity element CM having a smaller capacity than Cx for charging a preset quantity of charge from the capacitors Cx and Cs, and an IGFETQ5 for discharging a preset quantity of charge from the capacitor CM. And, the quantity of charge stored in the Cx and Cs is trasferred and discharged to the CM so that the number of pulses proportional thereto can be generated.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4614378A JPS54137379A (en) | 1978-04-18 | 1978-04-18 | Converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4614378A JPS54137379A (en) | 1978-04-18 | 1978-04-18 | Converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54137379A true JPS54137379A (en) | 1979-10-25 |
JPS6341025B2 JPS6341025B2 (en) | 1988-08-15 |
Family
ID=12738740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4614378A Granted JPS54137379A (en) | 1978-04-18 | 1978-04-18 | Converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54137379A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015516079A (en) * | 2012-05-30 | 2015-06-04 | 株式会社村田製作所 | Module and capacity detection method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4039940A (en) * | 1976-07-30 | 1977-08-02 | General Electric Company | Capacitance sensor |
-
1978
- 1978-04-18 JP JP4614378A patent/JPS54137379A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4039940A (en) * | 1976-07-30 | 1977-08-02 | General Electric Company | Capacitance sensor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015516079A (en) * | 2012-05-30 | 2015-06-04 | 株式会社村田製作所 | Module and capacity detection method |
Also Published As
Publication number | Publication date |
---|---|
JPS6341025B2 (en) | 1988-08-15 |
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