Patent ID: 8805638
Filing Date: 2014-08-12
Classification: G01D

Abstract:
1. A sensor for measurement of a desired variable of a medium, comprising: a sensor housing; a specimen feed in the sensor housing to receive the medium to be detected; and at least two measured value pick-ups comprised of a first measured value pick-up and a second measured value pick-up in the sensor housing, the first measured value pick-up receiving the medium from the specimen feed and measure the desired variable of the medium to obtain a first measured value, the second measured value pick-up receiving the medium from the specimen feed and measure the desired variable of the medium to obtain a second measured value; at least two processing units in the sensor housing, said at least two processing units comprising a first processing unit receiving the first measured value pick-up from the first measured value pick-up and a second processing unit receiving the second measured value from the second measured value pick-up, said at least two processing units mutually exchanging the measured variables via a connection, at least one of said at least two processing units cross-comparing the first and second measured values; and at least one secondary sensor selected from the group consisting of a temperature sensor, a pressure sensor and a combination thereof arranged within the sensor housing, wherein the at least one secondary sensor is detecting a disturbance variable caused by an environment and transmitting a detected value of the disturbance variable to at least one of the first and second processing units so that disturbance on the sensor is compensated by the measured value provided by the secondary sensor.