发明公开
- 专利标题： METHOD FOR TESTING TEMPERATURE SENSORS AND A TESTING DEVICE
- 专利标题（中）： 测试温度传感器的方法和测试设备
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申请号： EP12810609.3申请日： 2012-07-06
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公开(公告)号： EP2729777A1公开(公告)日： 2014-05-14
- 发明人: STRÅÅT, Fredrik , ZAMANI, Sebastian
- 申请人： Scania CV AB
- 申请人地址： 151 87 Södertälje SE
- 专利权人： Scania CV AB
- 当前专利权人： Scania CV AB
- 当前专利权人地址： 151 87 Södertälje SE
- 优先权： SE1150654 20110708
- 国际公布： WO2013009247 20130117
- 主分类号： G01K15/00
- IPC分类号： G01K15/00
摘要：
The invention relates to a method for testing a temperature sensor which comprises a temperature-dependent resistor (R2). The method comprises the steps of - determining the resistance R
t1 for R2, - applying to the resistor R2 a voltage pulse with a predetermined voltage amplitude U
t and a predetermined duration T, - determining the resistance R
t2 for R2 after the voltage pulse, - determining the absolute value of the resistance difference AR = | R
t1 - R
t2 |, - comparing AR with one or more threshold values (TR1, TR2,...), - generating on the basis of the result of the comparison a test signal which represents the result of the testing of the temperature sensor.
t1 for R2, - applying to the resistor R2 a voltage pulse with a predetermined voltage amplitude U
t and a predetermined duration T, - determining the resistance R
t2 for R2 after the voltage pulse, - determining the absolute value of the resistance difference AR = | R
t1 - R
t2 |, - comparing AR with one or more threshold values (TR1, TR2,...), - generating on the basis of the result of the comparison a test signal which represents the result of the testing of the temperature sensor.
公开/授权文献
- EP2729777B1 METHOD FOR TESTING TEMPERATURE SENSORS AND A TESTING DEVICE 公开/授权日：2017-09-06
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