Movable core transformer transducer with compensated primary winding
Abstract
Abstract AN MCT MEASURING CIRCUIT WHICH INCLUDES A VOLTAGE REGULATOR CIRCUIT FORMING A FEEDBACK PATH FROM AN INDEPENDENT AUXILIARY SECONDARY WINDING OF THE MOVABLE CORE TRANSFORMER TO AN OSCILLATOR CIRCUIT WHICH GENERATES A SQUARE WAVE ENERGIZATION SIGNAL. THIS ENERGIZATION SIGNAL IS APPLIED TO A FILTER CIRCUIT WHICH IS MAGNETICALLY INTERPOSED BETWEEN THE OSCILLATOR CIRCUIT AND THE PRIMARY WINDING OF THE MOVABLE CORE TRANSFORMER IN ORDER TO ATTENUATE THE ODD HARMONIC SINUSOIDAL FREQUENCY COMPONETS OF THE SQUARE WAVE SIGNAL WHILE PASSING A SUBSTANTIAL PORTION OF ITS FUNDAMENTAL FREQUENCY COMPONENT TO THE PRIMARY WINDING SO AS TO ENHANCE THE OPERATIONAL CHARACTERISTICS OF THE TRANSDUCER.
Inventors
- 👤 John C Martin
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |