Inductive sensor

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

Sensor for the determination of low (zero revolution) and fast revolutions as well as for the simultaneous determination of direction of rotation

Abstract: A measurement of a lower and a higher speed of rotation is taking place via the inductive sensor. A sensor unit, which comprises a pulse generator, a transmitter side and a receiver side, is used for determining the speed of rotation, whereby the transmitter side comprises a transmitter inductor connected with an oscillator, and the receiver side comprises two receiving inductors. The signal, which is generated by the two receiver inductors and transmitted along each of the signal paths, is forwarded to two signal processing units. Through each of the two signal paths, for lower and higher speed of rotation, the processed signal is forwarded to a logic device.

Light-emitting diode (LED) lamp capable of being used at night or being automatically opened and closed

Abstract: Provided is a light-emitting diode (LED) lamp capable of being used at night or being automatically opened and closed. The LED lamp is provided with a light source portion, the light source potion is formed by an LED, a lamp portion is provided with a driving circuit, a heat dissipation mechanism and a power supply mechanism of the LED, and the LED lamp is characterized in that the power supply mechanism is provided with a switch circuit, the switch circuit is connected with an infrared inductive sensor and a delay circuit, and the infrared inductive sensor and the delay circuit control the switch circuit of a lamp body. The LED lamp capable of being used at night or being automatically opened and closed overcomes the defects of an emergency lamp in the prior art, is small in energy consumption, solves the problem of collision of two ideas that a plurality of lamps are arranged to ensure life quality, and few lamps are used and are arranged to save energy sources, and achieves dual aims of saving the energy sources and ensuring lighting.

Lithium Niobate Integrated-Optic Voltage Sensor with Variable Sensing Ranges

Abstract: Integrated optical sensors for voltage and field measurement have intrinsic advantages over electronic sensors in terms of isolation from electronic instrumentations, large bandwidth, and immunity to electromagnetic interferences.

Inductive sensor for motor vehicle

Abstract: An inductive sensor (100) for a motor vehicle, includes: a field coil (101) designed to form an electromagnetic field, a coil (103) for measuring a magnetic field and designed to provide an output signal representative of the position of a metal target (102) in the magnetic field formed by the field coil (101), and at least two electric circuits (111) connected simultaneously in parallel to the terminals of the field coil (101), each electric circuit (111) including an inverter element (112) and a capacitive element (113), and forming, together with the field coil (101) an electric oscillator (110) designed to form an AC voltage at the terminals of the field coil (101) via electric resonance, the electric oscillators (110) being of the same resonance frequency

Commercial Vehicle Classification System using Advanced Inductive Loop Technology

Abstract: Author(s): Tok, Yeow Chern Andre | Abstract: Commercial vehicles typically represent a small fraction of vehicular traffic on most roadways. However, their influence on the economy, environment, traffic performance, infrastructure, and safety are much more significant than their diminutive numerical presence suggests.This dissertation describes the development and prototype implementation of a new highfidelity inductive loop sensor and a ground-breaking commercial vehicle classification system based on the vehicle inductive signatures obtained from this sensor technology. This new sensor technology is relatively easy to install and has the potential to yield reliable and highly detailed vehicle inductive signatures for advanced traffic surveillance applications.The Speed PRofile INterpolation Temporal-Spatial (SPRINTS) transformation model developed in this dissertation improves vehicle signature data quality under adverse traffic conditions where acceleration and deceleration effects can distort inductive vehicle signatures. The axle classification model enables commercial vehicles to be classified accurately by their axle configuration. The body classification models reveal the function and unique impacts of the drive and trailer units of each commercial vehicle.Together, the results reveal the significant potential of this inductive sensor technology in providing a more comprehensive commercial vehicle data profile based on a unique ability to extract both axle configuration information as well as high fidelity undercarriage profiles within a single sensor technology to provide richer insight on commercial vehicle travel statistics.