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US3260932A
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Magnet-field measuring device with a galvanomagnetic resistance probe
Assignee: Siemens Schuckertwerke AG
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Filing: 1964-05-07
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Granted: 1966-07-12
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Expires: 1984-05-07
Abstract
No abstract record available.
Inventors
- 👤 Weiss Herbert
- 👤 Martens Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:17
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/33; G11B5/39; G11B5/3903; G11B5/3993; G01; G01R; G01R33/00; G01R33/02; G01R33/06; G01R33/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A DEVICE FOR MEASURING MAGNETIC FIELDS COMPRISING A GALVANOMAGNETIC RESISTOR FOR RESPONSE TO THE FIELD TO BE MEASURED, CURRENT SUPPLY MEANS CONNECTED TO SAID RESISTOR FOR PASSING CURRENT THERETHROUGH DURING MEASURING OPERATION, MAGNETIC MEANS FOR SUPERIMPOSING AN AUXILIARY MAGNETIC FIELD UPON SAID RESISTOR, ALTERNATINGCURRENT SUPPLY MEANS CONNECTED WITH SAID MAGNETIC MEANS FOR PRODUCING SAID AUXILIARY FIELD AT A HIGH FREQUENCY COMPARED WITH THE CHANGES OF THE FIELD TO BE MEASURED, MEASURING MEANS, AND A FILTERING CIRCUIT CONNECTING SAID MEASURING MEANS TO SAID GALVANOMAGNETIC RESISTANCE FOR CONTROLLING SAID MEASURING MEANS SUBSTANTIALLY ONLY IN RESPONSE TO VOLTAGE CHANGES CAUSED ALONG SAID RESISTOR BY SAID MEASURING FIELD.
Claim 2
Independent Claim
104 words
A DEVICE FOR MEASURING MAGNETIC FIELDS COMPRISING A GALVANOMAGNETIC RESISTOR FOR RESPONSE TO THE FIELD TO BE MEASURED, CURRENT SUPPLY MEANS CONNECTED TO SAID RESISTOR FOR PASSING CURRENT THERETHROUGH DURING MEASURING OPERATION, MAGNETIC MEANS FOR SUPERIMPOSING AN AUXILIARY MAGNETIC FIELD UPON SAID RESISTOR, ALTERNATINGCURRENT SUPPLY MEANS CONNECTED WITH SAID MAGNETIC MEANS FOR PRODUCING SAID AUXILIARY FIELD AT A HIGH FREQUENCY COMPARED WITH THE CHANGES OF THE FIELD TO BE MEASURED, MEASURING MEANS, AND A FILTERING CIRCUIT CONNECTING SAID MEASURING MEANS TO SAID GALVANOMAGNETIC RESISTANCE FOR CONTROLLING SAID MEASURING MEANS SUBSTANTIALLY ONLY IN RESPONSE TO VOLTAGE CHANGES CAUSED ALONG SAID RESISTOR BY SAID MEASURING FIELD.
References Cited (Backward Citations)
US2939091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |