发明名称 |
Vätskenivådetektor samt styrkrets för denna |
摘要 |
<p>A method and apparatus for a liquid level sensor control circuit of a bioassay apparatus for controlling a position of a sampling probe with respect to a surface of a liquid in a container. The apparatus includes a sampling probe, an oscillator circuit coupled to the sampling probe for producing a first output signal having a constant frequency, a comparator coupled to the oscillator circuit for comparing the amplitude of the first output signal to a first reference amplitude and for producing a change signal when the amplitude of the first output signal changes with respect to the reference amplitude, and a controller responsive to the change signal for controlling the position of the sampling probe with respect to the surface of the liquid. <IMAGE></p> |
申请公布号 |
FI943270(A0) |
申请公布日期 |
1994.07.08 |
申请号 |
FI19940003270 |
申请日期 |
1994.07.08 |
申请人 |
AKZO NOBEL N.V. |
发明人 |
RAMEY, BLAINE EDWARD;MORENO, MARIO |
分类号 |
G01F23/00;G01F23/26;G01N35/10;(IPC1-7):G01F |
主分类号 |
G01F23/00 |
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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