JPS5552962A - Device for continuously measuring infinitesimal change of high frequency, sensitivity, stability and low impedance - Google Patents

Device for continuously measuring infinitesimal change of high frequency, sensitivity, stability and low impedance

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Publication number
JPS5552962A
JPS5552962A JP12647278A JP12647278A JPS5552962A JP S5552962 A JPS5552962 A JP S5552962A JP 12647278 A JP12647278 A JP 12647278A JP 12647278 A JP12647278 A JP 12647278A JP S5552962 A JPS5552962 A JP S5552962A
Authority
JP
Japan
Prior art keywords
circuit
high frequency
parallel
tuning
capacitances
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
JP12647278A
Other languages
Japanese (ja)
Inventor
Bunjiro Ichijo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP12647278A priority Critical patent/JPS5552962A/en
Publication of JPS5552962A publication Critical patent/JPS5552962A/en
Pending legal-status Critical Current

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  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE: To enable measurement of changes in infinitesimal resistance and reactance of low impedance continuously by electrostatically coupling the output of a high frequency power supply to two parallel tuning circuits and connecting measuring and compensating circuits in parallel to the tuning circuits.
CONSTITUTION: Parallel tuning circuits L1,l1-C1V (measuring circuit), L1', l1'-C1V' having equal constants are electrostatically coupled through infinitesimal capacitances CO1, CO1' to the high voltage side terminal of the output tank circuit LO-RO-CO of a high frequency power supply OSC. A series circuit of capacitances C1,C2 and C1', C2' is connected in parallel with the tuning circuits, a tuning circuit having L2-C2e', L2'-C2e is conneeted in series with the capacitances C2 and C2', and metallic specimen is inserted through a coil L2. A circuit of a loss variation indicator VgR and a reactance variation indicator VgC is electromagnetically coupled with L1, l 1, L1', l2' of the tuning circuit. When the values of the circuit elements are so set as to satisfy the special condition, the outputs to the indicators VgR, VgC can be maximized with respect to the infinitesimal resistance and reactance variations.
COPYRIGHT: (C)1980,JPO&Japio
JP12647278A 1978-10-13 1978-10-13 Device for continuously measuring infinitesimal change of high frequency, sensitivity, stability and low impedance Pending JPS5552962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12647278A JPS5552962A (en) 1978-10-13 1978-10-13 Device for continuously measuring infinitesimal change of high frequency, sensitivity, stability and low impedance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12647278A JPS5552962A (en) 1978-10-13 1978-10-13 Device for continuously measuring infinitesimal change of high frequency, sensitivity, stability and low impedance

Publications (1)

Publication Number Publication Date
JPS5552962A true JPS5552962A (en) 1980-04-17

Family

ID=14936056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12647278A Pending JPS5552962A (en) 1978-10-13 1978-10-13 Device for continuously measuring infinitesimal change of high frequency, sensitivity, stability and low impedance

Country Status (1)

Country Link
JP (1) JPS5552962A (en)

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