| Original document(19 pages) Authorized document(19 pages) 中文版 |
A sensor circuit (10) comprises a supermagnetostrictive sensor (14) and a measuring circuit (18). The supermagnetostrictive sensor comprises a supermagnetostrictive device (20) and a detecting coil (22) provided on a pedal (12) of a motor-driven hybrid bicycle. A coil excitation circuit (30) of the measuring circuit applies an excitation signal to the detecting coil via a sliding ring (16), an outputted signal is outputted from the detecting coil. The outputted signal is obtained by the measuring circuit via the sliding ring, and is inputted in a microcomputer (28) as a DC voltage signal via a filter (32). The microcomputer measures an inductance according to the DC voltage. The outputted signal is also supplied to a resistance variation detecting circuit (34). The variation detecting circuit detects a DC resistance based on the outputted signal supplied on the detecting coil, when the resistance is different from a reference resistance, the microcomputer corrects (calculate) the inductance according to a data table. A motor of the bicycle generates a boosting torque correspondingly to the measured inductance or the corrected inductance. |
Application Number
申请号 |
02126901 |
Application Date
申请日 |
2002.07.23 |
| Title 名称 |
Sensor circuit and electric mixed bicycle with the circuit |
Publication Number
公开号 |
1399123 |
Publication Date
公开日 |
2003.02.26 |
| Approval Pub. Date |
2005.10.05 |
Granted Pub. Date |
2005.10.05 |
| International Classification 分类号 |
G01L3/22;B62M23/02 |
Applicant(s) Name
申请人 |
Sanyo Electric Co., Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Yokotani Kazunobu;Takao Hiroshi |
| Attorney & Agent 代理人 |
liu jiyang |
| More information 更 多 信 息 |
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