发明名称 |
METHOD AND APPARATUS FOR DETECTING POSITION AND VELOCITY OF MOVING BODY |
摘要 |
A method for detecting the position and the velocity by using an encoder mounted directly on a moving body wherein original signals of the encoder are pulse-width modulated by using a sampling carrier wave and the position is detected by measuring the width of the pulses thus obtained. An apparatus for implementing the method comprises a carrier wave generation circuit, a pulse width modulation circuit which pulse-width modulates the original signals coming from the encoder by using the carrier wave, a pulse width timer which measures the width of the pulses thus modulated, and a microcomputer connected to the pulse width timer. |
申请公布号 |
DE3469458(D1) |
申请公布日期 |
1988.03.31 |
申请号 |
DE19843469458 |
申请日期 |
1984.11.07 |
申请人 |
HITACHI, LTD. |
发明人 |
MORINAGA, SHIGEKI;SUGIURA, YASUYUKI;MIYASHITA, KUNIO;TAKAHASHI, TADASHI |
分类号 |
G01P3/42;G01D5/246;G01P3/44;G01P3/489;(IPC1-7):G01P3/489 |
主分类号 |
G01P3/42 |
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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