US 12,460,947 B2
Electronic module, sensor apparatuses, set of sensor apparatuses and method for operating a sensor apparatus
Michael Friedrich, Wolfschlugen (DE); and Marc Bisch, Stuttgart (DE)
Assigned to BALLUFF GmbH, Neuhausen (DE)
Filed by BALLUFF GmbH, Neuhausen (DE)
Filed on Aug. 26, 2021, as Appl. No. 17/445,988.
Claims priority of application No. 10 2020 122 594.6 (DE), filed on Aug. 28, 2020.
Prior Publication US 2022/0065663 A1, Mar. 3, 2022
Int. Cl. G01D 5/20 (2006.01); H03K 17/95 (2006.01); G01B 7/02 (2006.01); G01B 7/30 (2006.01)
CPC G01D 5/202 (2013.01) [H03K 17/954 (2013.01); G01B 7/023 (2013.01); G01B 7/30 (2013.01); H03K 2217/945 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An electronic module for a sensor apparatus, said electronic module comprising:
at least one voltage-controlled current source;
a current source port which is operatively and electrically connected to the at least one voltage-controlled current source for providing a voltage-controlled current by way of the at least one voltage-controlled current source;
an adder device;
an adder input port which is operatively and electrically connected to the adder device and is adapted to establish connections between the adder device and at least one first external device; and
an adder output port which is operatively and electrically connected to the adder device and is adapted to establish connections between the adder device and at least one second external device;
wherein the current source port is operatively and electrically connected, or operatively and electrically connectable, to at least one of an electrical resonant circuit and a coil element;
wherein the adder input port is operatively and electrically connectable, or is operatively and electrically connected, to the current source port or to at least one further coil element;
wherein by way of the adder device, at least one of an operation of addition and an operation of subtraction of a voltage applied to the adder input port and at least one offset voltage is performed;
wherein an evaluation signal for evaluation by an evaluation device is providable, or is provided, at the adder output port;
wherein the at least one first external device comprises the electrical resonant circuit and the coil element; and
the at least one second external device comprises the evaluation device.