发明名称 |
METHOD AND APPARATUS FOR LOCATING POSITION OF AN OBJECT IN A CONFINED SPACE |
摘要 |
A high frequency signal is beamed into a bunker and a reflected signal from the top of the contents in the bunker is detected and fed into electronic circuitry. This circuitry obtains a beat signal dependent in frequency on the height of material in the bunker and the signal is subjected to division in a processing circuit and subsequent treatment as a Fast Fourier transform. A store gathers all divided and transformed segments of the signal to provide a spectrum from which the level of the bunker can be obtained as a read out. |
申请公布号 |
ZA8105529(B) |
申请公布日期 |
1982.08.25 |
申请号 |
ZA19810005529 |
申请日期 |
1981.08.11 |
申请人 |
COAL INDUSTRY PATENTS LTD |
发明人 |
PIDGEON BRIAN GEORGE;HEARD NIGEL ALISTAIR;BAVINGTON CLIVE ROBERT |
分类号 |
G01F23/284;G01S13/34 |
主分类号 |
G01F23/284 |
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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