JPS5569060A - High-tension control circuit of negative feedback alternating-current type surface electrometer - Google Patents
High-tension control circuit of negative feedback alternating-current type surface electrometerInfo
- Publication number
- JPS5569060A JPS5569060A JP14225078A JP14225078A JPS5569060A JP S5569060 A JPS5569060 A JP S5569060A JP 14225078 A JP14225078 A JP 14225078A JP 14225078 A JP14225078 A JP 14225078A JP S5569060 A JPS5569060 A JP S5569060A
- Authority
- JP
- Japan
- Prior art keywords
- control circuit
- tension control
- input terminal
- resistance
- negative feedback
- 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
- Measurement Of Current Or Voltage (AREA)
Abstract
PURPOSE: To reduce a stationary error in surface potential measurement by a simple method by grounding the inversion input terminal of an operational amplifier, constituting the final-stage non-inversion amplifier of a high-tension control circuit, through a high resistance.
CONSTITUTION: Output voltage Vg of a negative feedback alternating-current type surface electrometer is applied to the non-inversion input terminal of operational amplifier OP5 of high-tension control circuit F and its inversion input terminal is connected to an output terminal through resistance r5 and diode D and also to ground G through resistance R5 so as to a non-inversion amplifier while resistance R0 is interposed between the inversion input terminal and earth to obtain a circuit for stationary error reduction. Then, transistors Tr1 and Tr2 are driven by its output Vs to obtain high-tension output Vh. As a result, a stationary error in surface potential measurement can greatly be reduced and its measurement accuracy can be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14225078A JPS5569060A (en) | 1978-11-20 | 1978-11-20 | High-tension control circuit of negative feedback alternating-current type surface electrometer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14225078A JPS5569060A (en) | 1978-11-20 | 1978-11-20 | High-tension control circuit of negative feedback alternating-current type surface electrometer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5569060A true JPS5569060A (en) | 1980-05-24 |
Family
ID=15310932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14225078A Pending JPS5569060A (en) | 1978-11-20 | 1978-11-20 | High-tension control circuit of negative feedback alternating-current type surface electrometer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5569060A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56160978A (en) * | 1980-05-17 | 1981-12-11 | Yasuhide Otsubo | Device for transporting drainboard bundle for laver |
-
1978
- 1978-11-20 JP JP14225078A patent/JPS5569060A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56160978A (en) * | 1980-05-17 | 1981-12-11 | Yasuhide Otsubo | Device for transporting drainboard bundle for laver |
JPS5755390B2 (en) * | 1980-05-17 | 1982-11-24 |
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