Patent ID: 8499640
Filing Date: 2013-08-06
Classification: G01F,G01L

Abstract:
1. A modular measuring apparatus for outputting a measurement signal representing the difference between a first pressure of a medium at a first location and a second pressure of a medium at a second location, comprising: a first pressure measuring transducer module for registering the first pressure and for producing and outputting a sequence of first signals, which, in each case, represent a current value of the first pressure; a second pressure measuring transducer module for registering the second pressure and for producing a sequence of second signals which, in each case, represent a current value of the second pressure; an evaluation module for ascertaining a sequence of difference values between the first pressure and the second pressure, and for outputting a sequence of fourth signals, which, in each case, represent a difference between the first pressure and the second pressure; a first cable connection between said first pressure measuring transducer module and said second pressure measuring transducer module; and a second cable connection between said second pressure measuring transducer module and a measurement transmitter, wherein: said first pressure measuring transducer module is separated spatially from said second pressure measuring transducer module; said evaluation module is separated spatially from both said pressure measuring transducer modules; said second pressure measuring transducer module has a mapping unit, which is provided for receiving the sequence of first signals and the sequence of second signals and for producing a sequence of third signals, which, in each case, contain information concerning the first pressure and information concerning the second pressure based on at least one first signal and at least one second signal, and for outputting the sequence of third signals to the evaluation module via said second cable connection.