发明名称 |
Sensor using radiation pulses |
摘要 |
A sensor has an emitting device for emitting radiation pulses repeatedly and a receiving device for receiving these pulses. The receiving device includes a converter such as a photoelectric converter to convert the received radiation pulses into electrical pulses. On the basis of a known waveform characteristic or characteristics of true electrical pulse it is judged if a pulse which appears on the output line of the converter is a true electrical pulse caused by receiving the radiation pulse emitted from the emitting device or a false electrical pulse caused by noise. The result of this judgment is outputted from an output device. The emitting device may serve to emit the pulses according to a specified bit pattern and the receiving device may serve to compare the pattern of received pulses with a standard bit pattern and to thereby distinguish between true and false electrical pulses.
|
申请公布号 |
US6759644(B2) |
申请公布日期 |
2004.07.06 |
申请号 |
US20020100225 |
申请日期 |
2002.03.14 |
申请人 |
OMRON CORPORATION |
发明人 |
MIZUHARA SUSUMU;NAKAMURA ARATA;NAKANISHI HIROAKI |
分类号 |
G01J1/44;G01S7/493;G01S7/527;(IPC1-7):H01J40/14 |
主分类号 |
G01J1/44 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|