发明授权
US4196622A Method and apparatus for improving the reliability of an airflow
measuring system
失效
用于提高气流测量系统的可靠性的方法和装置
- 专利标题： Method and apparatus for improving the reliability of an airflow measuring system
- 专利标题（中）： 用于提高气流测量系统的可靠性的方法和装置
-
申请号： US944587申请日： 1978-09-21
-
公开(公告)号： US4196622A公开(公告)日： 1980-04-08
- 发明人: Cornelius Peter
- 申请人： Cornelius Peter
- 申请人地址： DEX Stuttgart
- 专利权人： Robert Bosch GmbH
- 当前专利权人： Robert Bosch GmbH
- 当前专利权人地址： DEX Stuttgart
- 优先权： DEX2750050 19770911
- 主分类号： G01F1/68
- IPC分类号： G01F1/68 ; F02D41/18 ; G01F1/69 ; G01F1/698 ; G01F15/12 ; G01P5/12
摘要：
Undesired deposits accummulating on the surface of a temperature-varying airflow sensing resistor are burned off periodically by increasing the current through it. To eliminate errors caused by a reversal in the direction of airflow, a temperature independent resistor is placed downstream of the temperature-varying resistor and is maintained at the same operating temperature as the latter.
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