Invention Grant
US07730759B2 Method and device for calibrating a humidity sensor and sensor arrangement having humidity sensor capable of calibration
失效
用于校准具有能够校准的湿度传感器的湿度传感器和传感器装置的方法和装置
- Patent Title: Method and device for calibrating a humidity sensor and sensor arrangement having humidity sensor capable of calibration
- Patent Title (中): 用于校准具有能够校准的湿度传感器的湿度传感器和传感器装置的方法和装置
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Application No.: US10471307Application Date: 2003-01-03
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Publication No.: US07730759B2Publication Date: 2010-06-08
- Inventor: Martin Rombach , Markus Langenbacher
- Applicant: Martin Rombach , Markus Langenbacher
- Applicant Address: DE Lenzkirch
- Assignee: Testo AG
- Current Assignee: Testo AG
- Current Assignee Address: DE Lenzkirch
- Agency: Muirhead and Saturnelli, LLC
- Priority: DE10203637 20020130
- International Application: PCT/EP03/00033 WO 20030103
- International Announcement: WO03/081231 WO 20031002
- Main IPC: G01L27/02
- IPC: G01L27/02
Abstract:
For calibrating a humidity sensor, the latter is used to measure the relative humidity (U1, U2) at each of two known gas pressure values (P1, P2), likewise to be measured if necessary. At the same time, other ambient conditions are kept constant. A correction value for correction of the measured values of the humidity sensor to be subtracted from the latter is then obtained from the formula: k=((P1/P2)*U2−U1)/(P1/P2−1). The humidity sensor is thus capable of calibration without measurement of the actual humidity value.
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