An inductive sensor includes a core body, a coil wound on the core body, a cavity having a fixed volume within the core body, and an epoxy mixture filling a controlled portion of the fixed volume. The controlled portion of the fixed volume filled with the epoxy mixture controls an inductance of the sensor.

An RF switch includes two or more coupled RF switch cells, each RF switch cell including a transistor having a first source/drain node, a second source/drain node, and a gate node, a first varactor is coupled between the first source/drain node and the gate node, and a second varactor is coupled between the second source/drain node and the gate node.

An RF switch includes two or more coupled RF switch cells, each RF switch cell including a transistor having a first source/drain node, a second source/drain node, and a gate node, a first varactor is coupled between the first source/drain node and the gate node, and a second varactor is coupled between the second source/drain node and the gate node.

A radio-frequency switch is disclosed, comprising a set of field-effect transistors disposed between a first node and a second node. In some embodiments, each field-effect transistor of the set of field-effect transistors has a respective source, drain, gate, and body. In some embodiments, the radio-frequency switch includes a compensation circuit coupled in parallel with the set of field-effect transistors, the compensation circuit configured to compensate a non-linearity effect generated by the set of field-effect transistors.

To provide a connecting structure for a signal cable capable of securing a sufficient display area concerning a display in a photoelectric switch. A photoelectric switch includes a housing having a substantially rectangular parallelepiped shape. A display 5 is provided on a first surface of the housing and includes a display region. A signal cable 51 connects a control board and the display 5. The display 5 includes a connecting section 70a connected to the signal cable 51. The connecting section 70a is disposed between the display region and the signal cable in the longitudinal direction of the housing. Consequently, a connecting structure for the signal cable 5 capable of securing a sufficient display area concerning the display 5 in the photoelectric switch is provided.

To make a display in a photoelectric switch easy to see for a user. A photoelectric switch includes a housing having a substantially rectangular parallelepiped shape. A display is attached to a first surface of the outer surface of the housing. A control board is housed on the inside of the housing. A controller is mounted on the control board. The first surface includes a hole-like or cutout-like opening section for allowing a signal cable to pass from the outside to the inside of the housing. The signal cable electrically connects the control board disposed on the inside of the housing and the display disposed on the outside of the housing. A cover member includes a window section for exposing a display region of the display and covers a non-display region of the display. The cover member is provided outside the housing.

A hand held domestic appliance comprises a handle part, a driven member, a motor for driving the driven member and a controller for controlling the motor. The handle part comprises a surface sensor for detecting a contact surface area and optionally also pressure and the controller is adapted to control the power supplied to the motor in dependence on the sensed contact surface area and optionally also pressure.

An inductive sensor includes a core body, a coil wound on the core body, a cavity having a fixed volume within the core body, and an epoxy mixture filling a controlled portion of the fixed volume. The controlled portion of the fixed volume filled with the epoxy mixture controls an inductance of the sensor.

A capacitive force sensor characterization system for calibrating a capacitive force sensor included in a personal electronic device. The capacitive force sensor includes a first capacitor plate coupled to a flexible element of the personal electronic device, which is coupled to the device housing, and a second capacitor plate coupled to an internal structural member of the personal electronic device. The internal structural member is not coupled to the housing during the characterization. The capacitive force sensor characterization system includes: a housing fixture adapted to hold the housing of the personal electronic device; a member fixture adapted to hold the internal structural member of the personal electronic device; a positioner coupled to at least one of the housing fixture or the member fixture; a position sensor; control circuitry electrically coupled to the positioner to provide a drive signal to the positioner; and a processor coupled to the first and second capacitor plates and the position sensor. The positioner is adapted to vary the gap width between the first and second capacitor plates in response to the drive signal. The position sensor is adapted to measure differences in the gap width between the capacitor plates relative to an initial gap width. The control circuitry is adapted to generate the drive signal following a test procedure such that, in response to the drive signal, the positioner varies the gap width between the capacitor plates from the initial gap width to at least two test gap widths. The processor adapted to determine: a capacitive sensor gain; a capacitive sensor offset; and an initial effective separation between the capacitor plates.

A radio-frequency switch is disclosed, comprising a set of field-effect transistors disposed between a first node and a second node. In some embodiments, each field-effect transistor of the set of field-effect transistors has a respective source, drain, gate, and body. In some embodiments, the radio-frequency switch includes a compensation circuit coupled in parallel with the set of field-effect transistors, the compensation circuit configured to compensate a non-linearity effect generated by the set of field-effect transistors.