The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 2010
Filed:
Jan. 03, 2003
Applicants:
Martin Rombach, Lenzkirch, DE;
Markus Langenbacher, Lenzkirch, DE;
Inventors:
Martin Rombach, Lenzkirch, DE;
Markus Langenbacher, Lenzkirch, DE;
Assignee:
Testo AG, Lenzkirch, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 27/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
For calibrating a humidity sensor, the latter is used to measure the relative humidity (U, U) at each of two known gas pressure values (P, P), 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=((P/P)*UU)/(P/P). The humidity sensor is thus capable of calibration without measurement of the actual humidity value.