Electronic module, sensor apparatuses, set of sensor apparatuses and method for operating a sensor apparatus

Sensor apparatus, comprising:

• an 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
• an adder output port which is operatively and electrically connected to the adder 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;
• and
• wherein an electrical resonant circuit is provided which is or becomes operatively and electrically connected to the current source port and the adder input port.

Sensor apparatus, comprising an electronic module, 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
• an adder output port which is operatively and electrically connected to the adder 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;
• and
• wherein a coil element is provided which is or becomes operatively and electrically connected to the current source port.

Set of sensor apparatuses, comprising at least two different sensor apparatuses selected from any of the following:

• (i) a sensor apparatus, comprising:
• an 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
• an adder output port which is operatively and electrically connected to the adder 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;
• and
• wherein an electrical resonant circuit is provided which is or becomes operatively and electrically connected to the current source port and the adder input port;
• and
• (ii) a sensor apparatus, comprising:
• an 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
• an adder output port which is operatively and electrically connected to the adder 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;
• and
• wherein a coil element is provided which is or becomes operatively and electrically connected to the current source port.

Method for operating a sensor apparatus, in which method are provided:

• at least one voltage-controlled current source;
• a current source port operatively and electrically connected to the at least one voltage-controlled current source;
• an adder device;
• an adder input port operatively and electrically connected to the adder device;
• and
• an adder output port operatively and electrically connected to the adder device;
• wherein a voltage-controlled current is provided at the current source port by way of the at least one voltage-controlled current source;
• wherein the current source port is operatively and electrically connected to at least one of an electrical resonant circuit and a coil element;
• wherein the adder input port is operatively and electrically connected to the current source port or to at least one further coil element;
• wherein 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;
• and
• wherein an evaluation signal for evaluation by an evaluation device is provided at the adder output port.