JPS5593068A - Automatic zero-adjustment type high-frequency wattmeter - Google Patents
Automatic zero-adjustment type high-frequency wattmeterInfo
- Publication number
- JPS5593068A JPS5593068A JP147379A JP147379A JPS5593068A JP S5593068 A JPS5593068 A JP S5593068A JP 147379 A JP147379 A JP 147379A JP 147379 A JP147379 A JP 147379A JP S5593068 A JPS5593068 A JP S5593068A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output voltage
- power
- output
- voltage
- 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 make it possible to make an automatic zero adjustment druing power measurement by making the zero adjustment and power adjustment in time-division mode.
CONSTITUTION: When the output voltage value of low-frequency rectanglular wave oscillator 24 is "1", switch circuit 21 in ON and switch circuit 23 OFF. Then, the output voltage of high-frequency power supply 1 to be measured is converted by converter 22 of power measuring circuit 9 into a voltage signal in proportion to the output power value of power supply 1, and it is added 3 to the memory voltage of memory circuit 8, amplified 4 and then supplied to indicator 51. Next, when the output voltage value of oscillator 24 is "0", circuit 21 if OFF, and circuit 23 ON. As a result, the output voltage of converter 22 generates an error voltage by leaking power of circuit 21 or a leaking current of circuit 3 and it is added 3 to the output voltage of circuit 8 and amplified 4 before being negatively fed back to the other input terminal of circuit 3 by way of negative feedback circuit 6 and circuits 23 and 8 so that the output voltage of circuit 4 will be zero. Therefore, the power measurement and zero adjustment can alternatively be performed according to the output of oscillator 24.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP147379A JPS5593068A (en) | 1979-01-09 | 1979-01-09 | Automatic zero-adjustment type high-frequency wattmeter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP147379A JPS5593068A (en) | 1979-01-09 | 1979-01-09 | Automatic zero-adjustment type high-frequency wattmeter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5593068A true JPS5593068A (en) | 1980-07-15 |
Family
ID=11502421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP147379A Pending JPS5593068A (en) | 1979-01-09 | 1979-01-09 | Automatic zero-adjustment type high-frequency wattmeter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5593068A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112698087A (en) * | 2020-12-15 | 2021-04-23 | 河海大学 | Broadband measurement-based power system broadband oscillation online monitoring method and system |
-
1979
- 1979-01-09 JP JP147379A patent/JPS5593068A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112698087A (en) * | 2020-12-15 | 2021-04-23 | 河海大学 | Broadband measurement-based power system broadband oscillation online monitoring method and system |
CN112698087B (en) * | 2020-12-15 | 2021-11-12 | 河海大学 | Broadband measurement-based power system broadband oscillation online monitoring method and system |
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