公开(公告)号：EP2671071A4

公开(公告)日：2016-12-14

申请号：EP12742732

申请日：2012-01-31

申请人： SCOTT TECH INC

发明人： MEALY STEPHEN EDWIN JR ,  ADAMI PH D FATOS ,  DEBLASIO NICHOLAS ANTHONY ,  MCLENDON BYRON EUGENE ,  MERKEL KELI CHALFANT ,  PROPST EDWARD RUSSELL JR

IPC分类号： G01N27/407

CPC分类号： G01N33/0006 ,  G01D4/004 ,  G01D18/002 ,  G01N33/0009 ,  G01N33/0031 ,  G01N33/007

摘要： An automatic sensor excitation voltage adjustment feature, a multi-range concentration feature, a single calibration feature and a barrier circuit feature. The automatic sensor excitation voltage adjustment feature includes a transmitter having a transmitter microprocessor that provides an initial voltage to a sensor having a sensor microprocessor. As the voltage changes a correction signal is relayed from the sensor microprocessor to the transmitter microprocessor. The correction signal is used to adjust the voltage applied to the sensor. The multi-range concentration sensor feature includes an amplifier associated with the senior/micro-processor to create gain settings used to optimize sensor resolution by changing a gain value for the sensor. This enables use of a single sensor for a variety of different concentration ranges. The single calibration feature enables a sensor to be calibrated at a single gas concentration value, and thereafter be used for a variety of different concentration range applications.