US3855529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring arrangement for determining the air-gap flux of a rotating-field machine
Assignee: Siemens AG
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Filing: 1972-06-14
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Granted: 1974-12-17
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Expires: 1992-06-14
Abstract
Abstract A measuring arrangement for determining the air-gap flux of a rotating-field machine is disclosed. A measuring detector is placed in a recess formed in the inner surface of the laminated stator of the machine at the working air-gap thereof. The sensitive region of the detector extends in the circumferential direction of the stator a distance corresponding approximately to the projection of the rotor slot pitch onto the inner surface of the stator. For the measuring detector, a galvanomagnetic device such as a Hall generator probe or group of Hall generators is suitable.
Inventors
- 👤 F Langweiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:12
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/34; G01R31/343
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
93 words
Arrangement for determining the air-gap flux of a rotatingfield machine having a laminated stator and a rotor having a plurality of slots, the inner surface of the stator and the rotor conjointly defining a working air-gap, comprising recess means formed in the inner surface of the stator, and a semiconductor arrangement responsive to a magnetic field disposed in said recess means and having a sensitive region extending in the circumferential direction of the stator a distance corresponding approximately to the projection of the rotor slot pitch onto the inner surface of the stator.
Claim 2
Dependent Claim
93 words
Arrangement for determining the air-gap flux of a rotatingfield machine having a laminated stator and a rotor having a plurality of slots, the inner surface of the stator and the rotor conjointly defining a working air-gap, comprising recess means formed in the inner surface of the stator, and a semiconductor arrangement responsive to a magnetic field disposed in said recess means and having a sensitive region extending in the circumferential direction of the stator a distance corresponding approximately to the projection of the rotor slot pitch onto the inner surface of the stator.
Claim 3
Dependent Claim
37 words
Arrangement of claim 1, said semiconductor arrangement having a sensitive region extending in the circumferential direction of the stator corresponding approximately to the radial projection of the rotor slot pitch onTo the inner surface of the stator.
Claim 4
Dependent Claim
19 words
Arrangement of claim 1, said recess means being a recess formed in the inner surface of the laminated stator.
Claim 5
Dependent Claim
16 words
Arrangement of claim 1, said semiconductor arrangement being a group of semiconductors disposed in said recess.
Claim 6
Dependent Claim
13 words
Arrangement of claim 1, said semiconductor arrangement comprising at least one Hall-Effect generator.
References Cited (Backward Citations)
US1522196A
Cited
US3624504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |