SU864440A1 - Device for measuring non-unifrmity of electric machine air gap - Google Patents
Device for measuring non-unifrmity of electric machine air gap Download PDFInfo
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- SU864440A1 SU864440A1 SU772515984A SU2515984A SU864440A1 SU 864440 A1 SU864440 A1 SU 864440A1 SU 772515984 A SU772515984 A SU 772515984A SU 2515984 A SU2515984 A SU 2515984A SU 864440 A1 SU864440 A1 SU 864440A1
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- USSR - Soviet Union
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- rotor
- measuring
- air gap
- electric machine
- poles
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Description
(54) УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ НЕРАВНОМЕРНОСТИ ВОЗДУШНОГО ЗАЗОРА ЭЛЕКТРИЧЕСКОЙ МАШИНЫ Изобретение относитс к электрическим машинам, преимущественно посто нного то ка, и предназначено дл измерени неравномерности воздушного зазора. Известно устройство дл измерени неравномерности воздушного зазора -электри ческой машины, содержаШее измерительный преобразователь, схему обработки сиг нала. Недостаток устройства - ограниченные функциональные возможности. Наиболее близким пр ехнической сущности и достигаемому результату вл етс устройство дл измерени неравномерности воздушного зазора электрической машины с внополюсным статором и зубчатым ротором. Недостаток данного устройства мала точность, обусловленна тем, что неравномерность зазора определ етс по измерению больших по уровню и мало отличающихс друг от друга сигналов. Цель изобретени - повышение точности .. Дл достижени поставленной цели .каждые две измерительные катушки, расположенные Диаметрально на противоположм 1Х полюсах, соединены последовательно согласно , еслиР- --р - нечетное, и последовательно - встречно, еслиР+-д - четное число , где р - число пар полюсов, z - число зубцов ротора. На чертеже показано предлагаемое устройство . Устройство содержит зубчатый ротор 1, измерительные катушки 2, размещенные на полюсах 3 статора и соединенные попарно последовательно, коммутатор 4 катушек , измерительный прибор 5. Если Pt-г нечетное, то каждые две измерительные катушки 2, размещенные на диаметрально противоположных полюсах 3 статора , соединены согласно и при Р+- четном - встречно. При вращении зубчатого ротора 1 в измерительных катушках 2 зубцовыми пульсаци ми магнитного потока навод тс ЭДС. Так как в катушках 2 ЭДС каждой(54) DEVICE FOR MEASURING THE NON-DIMENSIONALITY OF THE AIR GAP OF THE ELECTRIC MACHINE The invention relates to electrical machines, preferably constant current, and is intended to measure the unevenness of the air gap. A device is known for measuring the non-uniformity of the air gap of an electric machine, comprising a transducer, a signal processing circuit. The disadvantage of the device is limited functionality. The closest to the technical essence and the achieved result is a device for measuring the non-uniformity of the air gap of an electric machine with a pole-pole stator and a gear rotor. The disadvantage of this device is low accuracy, due to the fact that the non-uniformity of the gap is determined by measuring large signals and slightly different signals from each other. The purpose of the invention is to improve the accuracy. To achieve this goal, each two measuring coils located Diametrically on opposite 1X poles are connected in series according to, if P - - p is odd, and consistently - opposite, if P + - d is an even number, where p is the number of pole pairs, z is the number of rotor teeth. The drawing shows the proposed device. The device contains a gear rotor 1, measuring coils 2, placed on the poles 3 of the stator and connected in pairs in series, switch 4 coils, measuring device 5. If Pt-r is odd, then every two measuring coils 2 placed on diametrically opposite poles 3 of the stator are connected according to and with P + - even - counter. When rotating the gear rotor 1 in the measuring coils 2, an emf is induced by perforated magnetic pulsations of the magnetic flux 2. Since the coils 2 emf each
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772515984A SU864440A1 (en) | 1977-08-01 | 1977-08-01 | Device for measuring non-unifrmity of electric machine air gap |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772515984A SU864440A1 (en) | 1977-08-01 | 1977-08-01 | Device for measuring non-unifrmity of electric machine air gap |
Publications (1)
Publication Number | Publication Date |
---|---|
SU864440A1 true SU864440A1 (en) | 1981-09-15 |
Family
ID=20721470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772515984A SU864440A1 (en) | 1977-08-01 | 1977-08-01 | Device for measuring non-unifrmity of electric machine air gap |
Country Status (1)
Country | Link |
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SU (1) | SU864440A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4422040A (en) | 1981-11-05 | 1983-12-20 | International Business Machines Corporation | Method of testing stepping motors |
-
1977
- 1977-08-01 SU SU772515984A patent/SU864440A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4422040A (en) | 1981-11-05 | 1983-12-20 | International Business Machines Corporation | Method of testing stepping motors |
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