JPS5536758A - Sensing method of impedance - Google Patents
Sensing method of impedanceInfo
- Publication number
- JPS5536758A JPS5536758A JP10981878A JP10981878A JPS5536758A JP S5536758 A JPS5536758 A JP S5536758A JP 10981878 A JP10981878 A JP 10981878A JP 10981878 A JP10981878 A JP 10981878A JP S5536758 A JPS5536758 A JP S5536758A
- Authority
- JP
- Japan
- Prior art keywords
- impedance
- load
- current
- voltages
- matching
- 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
- Measurement Of Resistance Or Impedance (AREA)
Abstract
PURPOSE: To prevent possibility of dispersion in matching and to perform sensing in high accuracy by carrying out constantly unique operation at the initial period of matching and against the load variation.
CONSTITUTION: Impedance 1 to be measured is connected across measuring terminals 1 and 2. A voltage E is applied on the load impedance 1 from a high-frequency power supply for the measuring frequency, and a current I is flown to the load. A voltage which is in proportion to the load current I is introduced by a current transformer 6 and input into comparators 4 and 5. The output voltages Vd and Ve of the comparator 4 and 5 are pulse voltages. By comparing the phase-relationship between the two voltages, the range of the impedance can be measured.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10981878A JPS6046659B2 (en) | 1978-09-08 | 1978-09-08 | Impedance detection method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10981878A JPS6046659B2 (en) | 1978-09-08 | 1978-09-08 | Impedance detection method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5536758A true JPS5536758A (en) | 1980-03-14 |
JPS6046659B2 JPS6046659B2 (en) | 1985-10-17 |
Family
ID=14519978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10981878A Expired JPS6046659B2 (en) | 1978-09-08 | 1978-09-08 | Impedance detection method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6046659B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0657690A (en) * | 1992-08-12 | 1994-03-01 | Honshu Paper Co Ltd | Production of paper and paperboard |
-
1978
- 1978-09-08 JP JP10981878A patent/JPS6046659B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0657690A (en) * | 1992-08-12 | 1994-03-01 | Honshu Paper Co Ltd | Production of paper and paperboard |
Also Published As
Publication number | Publication date |
---|---|
JPS6046659B2 (en) | 1985-10-17 |
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