JPS5556701A - Variable attenuator - Google Patents
Variable attenuatorInfo
- Publication number
- JPS5556701A JPS5556701A JP13078278A JP13078278A JPS5556701A JP S5556701 A JPS5556701 A JP S5556701A JP 13078278 A JP13078278 A JP 13078278A JP 13078278 A JP13078278 A JP 13078278A JP S5556701 A JPS5556701 A JP S5556701A
- Authority
- JP
- Japan
- Prior art keywords
- circulator
- magnetic field
- electromagnet
- voltage
- control
- 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
Abstract
PURPOSE: To keep a magnetic field, applied to a circulator, constant by direct detecting it by controlling a magnetic field applied to a magnetic-field detection part packaged in the circulator.
CONSTITUTION: On circulator part 1 with input terminal 1a and output terminal 1b, detecting element part 2 is mounted and the variation of a magnetic field applied to a ferrite is detected and converted into a voltage, which is fed back to control circuit part 4. To control circuit part 4, electromagnet part 3 applying a magnetic field to circulator part 1 and control reference voltage part 5 controlling a current applied to the magnet are connected to control the current applied to electromagnet part 3 so that a difference between the reference voltage of electromagnet part 3 and detection signal voltage will be zero at any time.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13078278A JPS5556701A (en) | 1978-10-24 | 1978-10-24 | Variable attenuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13078278A JPS5556701A (en) | 1978-10-24 | 1978-10-24 | Variable attenuator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5556701A true JPS5556701A (en) | 1980-04-25 |
Family
ID=15042536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13078278A Pending JPS5556701A (en) | 1978-10-24 | 1978-10-24 | Variable attenuator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5556701A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10400306B2 (en) | 2014-05-12 | 2019-09-03 | Summit Mining International Inc. | Brine leaching process for recovering valuable metals from oxide materials |
-
1978
- 1978-10-24 JP JP13078278A patent/JPS5556701A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10400306B2 (en) | 2014-05-12 | 2019-09-03 | Summit Mining International Inc. | Brine leaching process for recovering valuable metals from oxide materials |
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