发明名称 |
Meter having pointer-zero-position adjusting function |
摘要 |
A meter such as a speedometer for use in an automobile instrument panel includes a pointer driven by a stepping motor. A pulse voltage having a wider pulse width is supplied to the stepping motor to obtain a higher induced voltage to be compared with a threshold voltage for detecting the pointer-zero-position. After the pointer-zero-position is detected, the stepping motor is driven by a pulse voltage having a narrower pulse width to obtain a quicker response of the pointer. In this manner, the pointer-zero-position is accurately adjusted without sacrificing the quick response of the meter pointer.
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申请公布号 |
US2002014104(A1) |
申请公布日期 |
2002.02.07 |
申请号 |
US20010885194 |
申请日期 |
2001.06.21 |
申请人 |
DENSO CORPORATION |
发明人 |
KOMURA TAKASHI;ASANO HIDEKI |
分类号 |
G01D13/22;G01D11/16;G01R7/06;H02P8/00;(IPC1-7):G01R17/14 |
主分类号 |
G01D13/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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