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JPS5593068A - Automatic zero-adjustment type high-frequency wattmeter - Google Patents

Automatic zero-adjustment type high-frequency wattmeter

Info

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
Application number
JP147379A
Other languages
Japanese (ja)
Inventor
Tsutomu Minami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP147379A priority Critical patent/JPS5593068A/en
Publication of JPS5593068A publication Critical patent/JPS5593068A/en
Pending legal-status Critical Current

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  • 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
JP147379A 1979-01-09 1979-01-09 Automatic zero-adjustment type high-frequency wattmeter Pending JPS5593068A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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 On-line monitoring method and system for broadband oscillation of power system based on broadband measurement

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