A system may include a resonant phase sensing system comprising a resistive-inductive-capacitive sensor and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor, and a compensation circuit. The measurement circuit may be configured to use a phase detector to measure phase information associated with the resistive-inductive-capacitive sensor and based on the phase information, determine a displacement of a metal plate relative to the resistive-inductive-capacitive sensor. The compensation circuit may be configured to detect a change in a physical property associated with the resistive-inductive-capacitive sensor other than the displacement and compensate the phase information to correct for the change in the physical property.

A flow meter for a home appliance, in particular a dishwasher or a washing machine, the flow meter comprising a control unit having a first power supply terminal, a second power supply terminal and a digital input terminal which is connected to the second power supply terminal via a limiting element; a movable element which is moved by a flow of a fluid and which comprises at least one movable magnetic element; and a two-lead magneto-sensitive unit which comprises a signal terminal connected to the digital input terminal of the control unit and a reference terminal connected to the first power supply terminal of the control unit; wherein the magneto-sensitive unit comprises a magnetic sensor element having two output terminals connected to the signal terminal and the reference terminal, and a power supply terminal; and a buffered power supply unit configured to generate a continuous auxiliary voltage from the signal terminal and the reference terminal of the magneto-sensitive unit and to provide the continuous auxiliary voltage at the power supply terminal of the magnetic sensor element.

A sensor lever for technical applications in motor vehicles. In its basic configuration, this sensor lever has a base lever arm and a sensor lever arm for installing at least one sensor and/or a tactile element. According to the invention, the sensor lever arm is aligned in the desired position with respect to base lever arm in the course of production.

A control device which allows an operator/user to follow the user's anatomical movement by following natural hand rotation, includes two independent detection sensors or sensor portions embedded in two different parts of the device, one in a fixed part and one in a mobile or rotative part, with resistance to mutual disturbance between the two. The device includes a knob portion rotatable about an axis of rotation, at least one sensor configured to sense a rotational position of the knob in relation to the axis of rotation, circuitry adapted to at least provide electrical power to the rotative knob portion, circuitry adapted to transmit the sensed rotational position of the knob, and a base portion rotatably coupled to the knob portion.

An inductive sensor which includes one or more inductive coils and an inductance to digital converter. The output of the inductive sensor may be used to replace the functions of a switch and a potentiometer to initiate and control various outputs in welding-type systems and applications.

A replaceable key structure includes a key holder and a circuit board. The key holder is disposed above a circuit board. The key holder is formed with a mounting slot for selectively receiving a first key module or a second key module therein. A magnetic sensor and a contact connector are disposed on the circuit board positionally corresponding to the mounting slot of the key holder. The first key module has a shaft, and a magnetic element disposed on the bottom of the shaft. The magnetic sensor can output an analog signal when the magnetic element approaches. The second key module has a trigger switch which has two electrical terminals disposed on the bottom surface of the second key module. When the second key module is installed in the mounting slot, the electrical terminals can be electrically connected to the contact connector.

A safety switch comprises a switching device (2) having a casing (4) housing switching means (5) connected to one or more circuits, an operating device (3) interacting with the switching means (5) for opening/closing the circuits, an unlocking mechanism (13) having an unlocking pin (14) translating with a maximum stroke from a locking position of the access to an unlocking position to operate the opening of the switching means (5), detection means (17) of the stroke of the unlocking pin (14) having a first detector (18) of the start of the stroke of the unlocking pin (14), an auxiliary unlocking control (25, 26) operatively connected to the unlocking mechanism (13) from a rest position to an operative position of unlocking of the access and promote the translation of the unlocking pin (14) The detection means (17) comprise an auxiliary detector (31) for detecting the actuation of the auxiliary unlocking control (25, 26).

In one aspect, an apparatus for receiving input and/or generating output comprises a key assembly. The key assembly comprises a key cover, a magnet, and an electromagnet. The magnet is coupled to the key cover. The electromagnet is operable to displace the key cover based on whether the key assembly is in an active state or an inactive state. In the active state, the electromagnet is operable to raise the key cover to a first position based on generation of a magnetic field. In the inactive state, the electromagnet is operable to lower the key cover to a second position based on cessation of the magnetic field.

A control device includes a moving portion, a magnetic element coupled to the moving portion, at least one magnetic sensing circuit responsive to magnetic fields, and at least one magnetic flux pipe structure. The magnetic element may comprise alternating positive and negative sections configured to generate a magnetic field. The magnetic element may be any shape, such as circular, linear, etc. The magnetic sensing circuit may be radially offset from the magnetic element, and the magnetic flux pipe structure may be configured to conduct the magnetic field generated by the magnetic element towards the magnetic sensing circuit. The magnetic element may generate the magnetic field in a first plane, and the magnetic sensing may be responsive to magnetic fields in a second direction that is angularly offset from the first plane. The magnetic flux pipe structure may redirect the magnetic field towards the magnetic sensing circuit in the second direction.

A push button switch assembly for a vehicle includes a housing having a plurality of walls that collectively define an inner space, and an elastic button that is moveable between a first unactuated position and a second unactuated position. A plate is positioned in the housing and an actuator is pivotable between a first position and a second position. The actuator includes a magnetic element. When the elastic button is in the first unactuated position, the magnetic element biases the actuator into the first position, and when the elastic button is moved to the section actuated position, a force applied to the elastic button is transmitted to the actuator to pivot the actuator to the second position.