Abstract: Device and related methods for capacitive measurement of a filling level of a filling medium in a filling volume that can be filled with a filling medium utilizing tailored voltage application and control.

Abstract: Device (1) for capacitive measurement of a filling level of a filling medium (2) in a filling volume (3) that can be filled with a filling medium, comprising: a first measuring element (5), a second measuring element (6), wherein the second measuring element (6) is created such that a potential gradient forms between a first portion (6a) of the second measuring element (6), and a second portion (6b) of the second measuring element (6); a voltage generation means (7) that is associated with the second measuring element (6) and is designed to generate a first electrical voltage (U1) and a second electrical voltage (U2) that is optionally different from the first electrical voltage (U1), and to apply these to the second measuring element (6); a control means (8) that is associated with the voltage generation means (7) and is designed to control the operation of the voltage generation means (7) such that the first and second electrical voltage (U1, U2) is applied in an alternating manner to the first and secon

Abstract: In order to be able to reliably detect when an object is caught between two parts which move in relation to one another in a motor-driven closing mechanism, in particular in an electromotively driven window winder system, provision is made for the sensor system to have an optical pressure sensor as well as an electrical capacitive sensor in addition. The optical pressure sensor comprises a light-guiding element, a light source for injecting light into the light-guiding element and a light sensor for sensing the light which has been output. The electrical sensor comprises an electrode which is connected to a voltage source. Both sensors are each assigned to an evaluation unit for evaluating the respective signal.

Abstract: In order to be able to reliably detect when an object is caught between two parts which move in relation to one another in a motor-driven closing mechanism, in particular in an electromotively driven window winder system, provision is made for the sensor system to have an optical pressure sensor as well as an electrical capacitive sensor in addition. The optical pressure sensor comprises a light-guiding element, a light source for injecting light into the light-guiding element and a light sensor for sensing the light which has been output. The electrical sensor comprises an electrode which is connected to a voltage source. Both sensors are each assigned to an evaluation unit for evaluating the respective signal.

Abstract: A pressure sensor includes an optical waveguide having an optical fiber with a refractive index n1, located in a fiber guide with a refractive index n3, forming an intermediate region. A medium with a refractive index n2 is located in the intermediate region. The refractive indices correspond to the relation n3>n1>n2. When subjected to a pressure, the fiber guide is pressed against the optical fiber such that the condition for the total reflection required for the normal optical waveguidance in the optical waveguide is no longer fulfilled, and attenuation takes place. The attenuation is evaluated in a corresponding control unit. The pressure sensor is especially provided for an anti-pinch device in the motor vehicle industry.

Abstract: A pressure sensor includes an optical waveguide having an optical fiber with a refractive index n1, located in a fiber guide with a refractive index n3, forming an intermediate region. A medium with a refractive index n2 is located in the intermediate region. The refractive indices correspond to the relation n3>n1>n2. When subjected to a pressure, the fiber guide is pressed against the optical fiber such that the condition for the total reflection required for the normal optical waveguidance in the optical waveguide is no longer fulfilled, and attenuation takes place. The attenuation is evaluated in a corresponding control unit. The pressure sensor is especially provided for an anti-pinch device in the motor vehicle industry.

Abstract: An apparatus for sending and receiving light signals representing measurement information, such as used in conjunction with a medical examination apparatus. The medical examination device has a rotating sender support with a sender device for transmitting the signal light. The sender device is positionally fixed on the sender support so as to rotate in a circular path defined by the rotating support. A stationary detecting receiver device is disposed on a circle that is parallelly aligned with the circular path over which the sender is rotated. The receiver device is disposed at a distance from the sender. A single sender device is used to transmit the informational signals. The receiver device is a fluorescing fiber-optic fiber which extends within a circular ring configuration and has at least one detector mounted at or near at least one of the fiber. The detector detects the informational signals received by the fiber.