发明名称 |
THERMAL DISPERSION PROBE WITH MICROCOMPUTER CONTROLLER |
摘要 |
Thermal dispersion probes used as flowrate sensors in process control of a medium heated by a heater. The device includes a reference temperature sensor for producing an electrical signal indicative of the temperature of the medium in which it is immersed, and an active temperature sensor for producing an electrical signal indicative of the temperature of t he medium adjacent the heater. The temperature difference between the active sensor and the referen ce sensor is processed in a processor which varies the heater power to maintain the temperature differential between the active sensor and the reference sensor within a predetermined range, whereby the predetermined range provides an optimal sensitivity for the probes.</SD OAB>
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申请公布号 |
CA2259088(C) |
申请公布日期 |
2004.10.12 |
申请号 |
CA19992259088 |
申请日期 |
1999.01.15 |
申请人 |
KAYDEN INSTRUMENTS INC. |
发明人 |
CHIDLEY, PAUL EDWARD;MCCLELLAND, BRIAN LESLIE |
分类号 |
G01F1/696;G01F1/699;(IPC1-7):G01F1/699;G01F1/69;G01F15/02 |
主分类号 |
G01F1/696 |
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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