Patent US3377555A successfully refreshed from Google Patents.
US3377555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of calibrating high-voltage precision resistance potential dividers
Assignee: United States Atomic Energy Commission
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Filing: 1965-06-04
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Granted: 1968-04-09
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Expires: 1985-06-04
Abstract
No abstract record available.
Inventors
- 👤 Robert N Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:57
CPC Classifications
G; G01; G01R; G01R15/00; G01R15/14; G01R1/00; G01R1/20; G01R1/203; G01R1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A METHOD OF IN-CIRCUIT CALIBRATION OF A RESISTANCE POTENTIAL DIVIDER HAVING A PLURALITY OF RESISTANCE ARMS SERIALLY CONNECTED ACROSS AN APPLIED INPUT VOLTAGE AND AN OUTPUT TAKEN ACROSS ONE OF SAID RESISTANCE ARMS COMPRISING SERIES CONNECTING A FIRST RESISTANCE AND A CALIBRATED POTENTIOMETER, CONNECTING THE RESISTANCE-POTENTIOMETER COMBINATION ACROSS SAID DIVIDER, CONNECTING A NULL INDICATING DEVICE BETWEEN THE OUTPUT OF SAID DIVIDER AND THE WIPER ARM OF SAID POTENTIOMETER, ADJUSTING THE WIPER ARM OF SAID POTENTIOMETER UNTIL SAID INDICATING DEVICE READS A NULL VALUE, SHORTING ACROSS THE RESISTANCE ARM OF SAID DIVIDER ADJACENT THE OUTPUT RESISTANCE ARM THEREOF, ADJUSTING THE WIPER ARM OF SAID POTENTIOMETER UNTIL SAID INDICATING DEVICE READS A NULL VALUE THEREFOR, REMOVING THE RESISTANCE ARM SHORT, CONNECTING THE COMMON TERMINAL OF SAID OUTPUT-ADJACENT RESISTANCE ARM OF SAID DIVIDER AND A FURTHER RESISTANCE ARM OF SAID PLURALITY OF ARMS TO THE COMMON TERMINAL OF SAID RESISTANCE-POTENTIOMETER COMBINATION, ADJUSTING THE WIPER ARM OF SAID POTENTIOMETER UNTIL SAID INDICATING DEVICE READS A NULL VALUE THEREFOR, COMBINING SAID POTENTIOMETER SETTINGS REQUIRED TO OBTAIN SAID NULL VALUES TO OBTAIN THEREFROM THE DIVISION RATIO AND HENCE THE CALIBRATION OF SAID DIVIDER.
Claim 2
Independent Claim
187 words
A METHOD OF IN-CIRCUIT CALIBRATION OF A RESISTANCE POTENTIAL DIVIDER HAVING A PLURALITY OF RESISTANCE ARMS SERIALLY CONNECTED ACROSS AN APPLIED INPUT VOLTAGE AND AN OUTPUT TAKEN ACROSS ONE OF SAID RESISTANCE ARMS COMPRISING SERIES CONNECTING A FIRST RESISTANCE AND A CALIBRATED POTENTIOMETER, CONNECTING THE RESISTANCE-POTENTIOMETER COMBINATION ACROSS SAID DIVIDER, CONNECTING A NULL INDICATING DEVICE BETWEEN THE OUTPUT OF SAID DIVIDER AND THE WIPER ARM OF SAID POTENTIOMETER, ADJUSTING THE WIPER ARM OF SAID POTENTIOMETER UNTIL SAID INDICATING DEVICE READS A NULL VALUE, SHORTING ACROSS THE RESISTANCE ARM OF SAID DIVIDER ADJACENT THE OUTPUT RESISTANCE ARM THEREOF, ADJUSTING THE WIPER ARM OF SAID POTENTIOMETER UNTIL SAID INDICATING DEVICE READS A NULL VALUE THEREFOR, REMOVING THE RESISTANCE ARM SHORT, CONNECTING THE COMMON TERMINAL OF SAID OUTPUT-ADJACENT RESISTANCE ARM OF SAID DIVIDER AND A FURTHER RESISTANCE ARM OF SAID PLURALITY OF ARMS TO THE COMMON TERMINAL OF SAID RESISTANCE-POTENTIOMETER COMBINATION, ADJUSTING THE WIPER ARM OF SAID POTENTIOMETER UNTIL SAID INDICATING DEVICE READS A NULL VALUE THEREFOR, COMBINING SAID POTENTIOMETER SETTINGS REQUIRED TO OBTAIN SAID NULL VALUES TO OBTAIN THEREFROM THE DIVISION RATIO AND HENCE THE CALIBRATION OF SAID DIVIDER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |