发明名称 |
Testing method and apparatus |
摘要 |
<p>Apparatus for testing an alarm sensor includes a receiver, means for modifying a signal received by the receiver to simulate a "moving target" return signal, means for varying the power of the modified signal, a transmitter for transmitting the modified signal to the sensor, and means for detecting a signal output by the alarm sensor. The sensor is mounted on an opposite side of an anechoic chamber to the transmitter and the receiver. The apparatus includes a controller to reduce the attenuation of an attenuator, forming part of the power varying means, from a high level until the modified signal received by the alarm sensor is large enough to trigger an output signal. <IMAGE></p> |
申请公布号 |
EP1118873(A1) |
申请公布日期 |
2001.07.25 |
申请号 |
EP20010300488 |
申请日期 |
2001.01.19 |
申请人 |
DYNEX SEMICONDUCTOR LIMITED |
发明人 |
REDFERN, STEPHEN W.;TYSON, PAUL A.;BLUNDEN, PETER P. |
分类号 |
G01S7/40;G01S13/56;G08B29/14;(IPC1-7):G01S7/40 |
主分类号 |
G01S7/40 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|