发明名称 |
Apparatus for determining the filling level of a product in a container |
摘要 |
An apparatus for determining the filling level of a product in a container with a transmission unit which generates high-frequency signals and emits them at a predetermined pulse repetition frequency in the direction of the surface of the filled product. The signals are reflected by the surface of the filled product and are received by a receiving unit. A delay circuit transforms the high-frequency signals/reflected signals into low-frequency signals in accordance with a predetermined translation factor and with an evaluation unit which determines the filling level of the product in the container on the basis of the delay time of the signals. The delay circuit includes: a transmission oscillator; a sampling oscillator; a digital sampling circuit; and a closed-loop/open-loop control unit.
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申请公布号 |
US2002133303(A1) |
申请公布日期 |
2002.09.19 |
申请号 |
US20020074241 |
申请日期 |
2002.02.14 |
申请人 |
HEIDECKE FRANK |
发明人 |
HEIDECKE FRANK |
分类号 |
G01F23/284;G01S7/288;G01S13/10;G01S13/88;(IPC1-7):G01L7/00;G01F17/00;G01F23/00;G01N11/00;G06F19/00 |
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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