发明名称 |
Pulsed radar level detection system using pulse dithering to eliminate inaccuracies caused by tank rattle |
摘要 |
A through air level measurement instrument for use in minimizing tank rattle comprises a housing and an antenna secured to the housing. A process adaptor is associated with the antenna and the housing for securing the instrument to a closed tank with the antenna directed into an interior of the closed tank. A control in the housing generates and receives a high frequency signal using an electromagnetic radiating element proximate the antenna. The control comprises an equivalent time sampling circuit including a main oscillator driving a timing circuit controlling timing between transmitted and sample pulses. A noise generator is operatively associated with the main oscillator to randomly modulate timing of the main oscillator. The control minimizes inaccuracies caused by tank rattle. |
申请公布号 |
EP2219015(A3) |
申请公布日期 |
2012.12.26 |
申请号 |
EP20090008529 |
申请日期 |
2009.06.30 |
申请人 |
MAGNETROL INTERNATIONAL INCORPORATED |
发明人 |
FLASZA, MICHAEL, D. |
分类号 |
G01F23/284 |
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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