公开(公告)号：US20190187113A1

公开(公告)日：2019-06-20

申请号：US16208338

申请日：2018-12-03

申请人： SCOTT TECHNOLOGIES, INC.

发明人： Stephen Edwin Mealy, Jr. ,  Fatos Adami ,  Nicholas Anthony Deblasio ,  Byron Eugene McLendon ,  Keli Chalfant Merkel ,  Edward Russell Propst, Jr.

IPC分类号： G01N33/00 ,  G01D18/00 ,  G01D4/00

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