{"id":758,"date":"2026-04-01T10:01:00","date_gmt":"2026-04-01T01:01:00","guid":{"rendered":"https:\/\/www.muratasoftware.com\/en_wacul_new\/fwp-new-wacul\/?post_type=case&p=758"},"modified":"2026-08-24T16:40:12","modified_gmt":"2026-08-24T07:40:12","slug":"luv007","status":"publish","type":"case","link":"https:\/\/www.muratasoftware.com\/en\/case\/luv007\/","title":{"rendered":"Rotation Detector"},"content":{"rendered":"\n
General<\/th>A rotation detector is analyzed in the magnetic-transient analysis.
The rotation detector is a sensor placed close to the tooth of the gear to detect frequency signals proportional to the rotation speed.<\/th><\/tr><\/thead>
Analysis Model<\/td>Fig. 1 is an analysis image in 3D. The detector is placed near the tip of teeth. The detector consists of coil and magnet.
Fig. 2 is a 2D analysis model.
Fig. 3 is an external circuit used for the coil output.<\/td><\/tr>
Result<\/td>As the results in Fig. 4 and 5 show, the magnetic field distributions vary according to the tooth position.
Fig. 6 shows the output with the external circuit. The current waveform of the coil is output.<\/td><\/tr>
Keywords<\/td>Magnetic Rotary Sensors, Rotational Speed Sensors, Sensor Sensitivity Analysis, Magnetic Sensor Design<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Fig. 1: 3D Image<\/p>\n\n\n\n

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Fig. 2: 2D Analysis Model<\/p>\n\n\n\n

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Fig. 3: External Circuit<\/p>\n\n\n\n

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Fig. 4: Result 1<\/p>\n\n\n\n

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Fig. 5: Result 2<\/p>\n\n\n\n

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Fig. 6: Current Waveform<\/p>\n\n\n\n

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