Abstract: A radio sensor module having a sensor base module having at least one sensor circuit board that has a sensor, and/or having a terminal for connection to a sensor external to the radio sensor module; a process terminal and/or an extended sensor terminal; a housing portion that accommodates the sensor base module and the sensor circuit board; and a radio sensor unit having a structural carrier that carries therein a radio circuit board and an energy store that supplies the radio circuit board with electrical energy. The energy store has an electrical battery and an electrical condenser which are electrically connected in parallel. A modular system is also provided for forming such a radio sensor module.

Abstract: In a two-conductor technology circuit the use of certain ASIC components is made possible which, for instance, allow for the supply of contact-free rotational angle sensors, although said ASIC components have a high current consumption.

Abstract: In a method for converting an analogue measurement indication into electric signals, the angle of rotation of the pointer of an analogue display is contact free detected and converted into a proportional electrical output signal. This is achieved by using an application-specific integrated circuit having a Hall sensor which can detect the magnetic flux density parallel to the surface of the integrated circuit.

Abstract: In a two-conductor technology circuit the use of certain ASIC components is made possible which, for instance, allow for the supply of contact-free rotational angle sensors, although said ASIC components have a high current consumption.

Abstract: In a method for converting an analogue measurement indication into electric signals, the angle of rotation of the pointer of an analogue display is contact free detected and converted into a proportional electrical output signal. This is achieved by using an application-specific integrated circuit having a Hall sensor which can detect the magnetic flux density parallel to the surface of the integrated circuit.

Abstract: The pressure transducer comprises a pressure connection (2) and a tube-shaped housing (22) that is securely attached at its lower end section (24) to the pressure connection. Arranged in the interior of the housing (22) are a pressure sensor (6) carried by the pressure connection (2) and a circuit arrangement (8). An interface module (18) is attached at the upper end section (26) of the housing (22), the connection between the interface module (18) and the upper end section (26) being effected by means of a locking ring (32) that is locked to the housing (22) and that is either integral with the interface module (18) or that carries a union nut (46) that secures the interface module (18) to the locking ring (32). During manufacture of the pressure transformer, the housing (22) is attached to the pressure connection (2) before the interface module (18) is brought into electrical contact with the circuit arrangement (8) and before it is connected mechanically to the housing (22).