Inductive sensor

About: Inductive sensor is a research topic. Over the lifetime, 2282 publications have been published within this topic receiving 21984 citations.

Solid-state sensor assembly has a number of sensor components on or in a substrate and an electrical signal converter coupled to a sensor element

Abstract: A solid-state sensor assembly has a number of sensor components on or in a substrate. Each sensor component has an electrical signal converter coupled to a sensor element. Each sensor element produces a characteristic signal change in response to a sensor event. Each sensor has a an assembly maintaining a constant voltage applied to the signal converter, and a device to register the current flowing through the signal converter as a sensor signal. the signal converter is a field effect transistor whose gate is connected to the sensor element. The supply of electrical current is maintained at a constant value between the source-/drain connection in the field effect transistor. The electrical signal output is employed as the sensor signal. also claimed is an operating process.

Current and/or voltage sensor device, and method of operation the same

Abstract: The invention relates to a voltage and or current sensor device (Fig.1) for the use in medium- or high-voltage application and a method for operation of the same. The sensor device can have at least one voltage and/or current sensor (1), wherein the sensor(s) of the sensor device is (are) arranged in a housing. In order to enhance the communication between the sensor and the electronic device and to use maximum possible accuracy of the voltage and current sensors, a signal and/or data memory element (3) is integrated in the sensor housing, or placed near the sensor in such, that the sensor device output signal can be directly evaluated. A method includes an automatic communication of historical sensing data, individual calibration data and/or parameter data between the data memory element (3) and a central calculation/monitoring device

System for testing quality of corrugated pipe

Abstract: The utility model discloses a system for testing the quality of a corrugated pipe. The system comprises a host and a display screen which is connected with the host. The system also comprises an on-line testing device, a data processing device used for converting and transmitting the data obtained by an inductive sensor, and a master controller. The interior of the on-line testing device is provided with an inductive sensor and two position sensors, wherein the inductive sensor is used for detecting the position of an inner-layer steel band of the trough of the corrugated pipe, and the two position sensors are used for detecting the position state of the corrugated pipe. The data processing device is connected with the inductive sensor. The master controller is connected with the data processing device, the two position sensors, and the host. The system provided by the utility model can detect the thickness of top plastics of the corrugated pipe in real time, the thickness of bottom plastics of the corrugated pipe, the overall thickness, and the displacement of a wave crest; saves cost; is strong in operationality; is convenient to install; and is very high in repeated accuracy and practicality.

Alarm pane arrangement

Abstract: The present invention relates to an alarm pane arrangement (10, 10') comprising: - at least one first pane (1) consisting of prestressed glass, with an outer surface (I) and an inner surface (II), - at least one transparent electrically conductive coating (3) which is arranged on the inner surface (II) of the first pane (1), and - a sensor unit (20) having an inductive sensor (21) which is inductively coupled to the transparent electrically conductive coating (3), wherein the sensor unit (20) outputs an alarm signal in the event of differences between a measurement signal from the inductive sensor (21) and a comparison value, wherein the inductive sensor (21) contains precisely one measuring coil (21.1), preferably a measuring coil (21.1) having a ferrite core (21.2).

Intelligently controlled LED illuminating system

Abstract: The utility model discloses an intelligently controlled LED illuminating system, which comprises an LED illuminating lamp, a drive circuit of the LED illuminating lamp, a power supply circuit and a controller. The controller comprises a singlechip, a control panel, an A/D conversion circuit, an illumination intensity sensor, an illumination intensity signal adjustment circuit, a human body inductive sensor and a human body signal adjustment circuit. The illumination intensity sensor is connected with the A/D conversion circuit through the illumination intensity signal adjustment circuit. The human body inductive sensor is electrically connected with the A/D conversion circuit through the human body signal adjustment circuit. Both the A/D conversion circuit and the control panel are electrically connected with the singlechip. The singlechip is electrically connected with the power supply circuit. According to the utility model, the brightness of the LED illuminating lamp can be automatically adjusted according to the illumination intensity of an application place, while the brightness of the LED illuminating lamp can be manually set. The LED illuminating lamp can also be automatically lightened or extinguished according to the absence or the presence of a human body. Thus, the intelligently controlled LED illuminating system is convenient to use and energy-saving.