Other

Endress+hauser Gmbh+co.

Alexander M&uuml;ller

Volker Dreyer

Sergej Lopatin

Helmut Pfeiffer

Wolfgang Brutschin

J&uuml;rgen Meier

In a method of transmitting a measurement signal M between a measuring unit and a control unit , the uniform measurement signal has a supplementary signal Z superimposed on it which alternates over time. To check the operation of the measuring unit , the measurement signal M is evaluated in the control unit . If the supplementary signal Z is erroneous, the control unit produces an alarm signal.

Method of transmitting a measurement signal between a measuring unit and a control unit

An apparatus for establishing and/or monitoring a predetermined filling level in a container is described, which apparatus can be used in a wide range of applications, that is to say in many different media, which apparatus comprises: a housing (,), an oscillating element for projecting into the container, a diaphragm (,), which is fixedly clamped into the housing (,) at its edge and to which the oscillating element is fastened, and an electromechanical transducer for exciting the diaphragm (,) to produce oscillations in dependence on a transmission signal (S) present at the transducer and for receiving and converting oscillations thereof into an electrical reception signal (E), in which a percentage interval between a resonant frequency f,and an antiresonant frequency f,divided by the resonant frequency f,exceeds 20% when the oscillating element oscillates in air.

Apparatus for establishing and/or monitoring a predetermined filling level in a container

Growing community of inventors

Steinen, Germany

Alexander Müller

Growing community of inventors

Steinen, Germany

Alexander M&uuml;ller

Alexander Müller