Topic
Inductive sensor
About: Inductive sensor is a research topic. Over the lifetime, 2282 publications have been published within this topic receiving 21984 citations.
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09 Apr 2005
TL;DR: In this paper, an inductive sensor that combines both Q-detection and heterodyne technology was proposed for imaging steel reinforcement bars, surface corrosion and materials with different permeability and conductivity ratios.
Abstract: An inductive sensor is described that combines both Q‐detection and heterodyne technology. By exploiting the change in amplitude and frequency of the received signals, it may be used for imaging steel reinforcement bars, surface corrosion and, generally, materials with different permeability and conductivity ratios. Real time digital signal processing is used to improve the signal to noise ratio of the sensor and to provide a feedback stabilization mechanism for the reduction of long‐term drift.
Patent•
21 May 1997TL;DR: In this paper, a circuit for processing an inductive sensor signal was proposed, and the interference insensitivity, evaluation of small signal amplitudes and chronological accuracy of signal detection were improved in that earth is selected as the reference potential.
Abstract: not available for EP0774177Abstract of corresponding document: DE19520690The invention concerns a circuit for processing an inductive sensor signal. The interference insensitivity, evaluation of small signal amplitudes and chronological accuracy of signal detection are improved in that earth is selected as the reference potential, a fixed basic trigger threshold is established in the zero-crossing of the inductive sensor signal, and the return trigger threshold is adjusted by the adjusting device in the region of only one half-wave.
TL;DR: A method for launching and a corresponding device are proposed for activation of pyrothechnical systems of missile trains boosting along an ejection path to hypersonic velocities with ejection of an object to free flight.
Abstract: Launching and control of pyrotechnical systems at a specified coordinate is among the most complicated problems in the tests at a missile track. A method for launching and a corresponding device are proposed for activation of pyrothechnical systems of missile trains boosting along an ejection path to hypersonic velocities with ejection of an object to free flight. The method is based on generation of current pulses for activation of pyrotechnical systems of the moving stages of a missile train using inductive sensors. The principle can also be used for implementation of a noncontact method for activation of recording systems and a device for measurement of the mean velocity of an ejected object in continuous media. The method is based on the generation of starting signals (positive rectangular pulses) for activation of recording equipment with matching relative to the specified coordinate and measurement of the velocity of the ejected object at the moment when it passes through the measurement cross section. Methods for activation of recording systems and results of hydrodynamic and terradynamic experiments are presented.
Patent•
15 Mar 2018
TL;DR: In this paper, the authors proposed a sensor combination for determining at least two physical quantities of a rotating shaft, which sensor combination has a rotational angle sensor (14) and a torque sensor (16).
Abstract: The invention relates to a steering system (2) and to a sensor combination for determining at least two physical quantities of a rotating shaft (4), which sensor combination has a rotational angle sensor (14) and a torque sensor (16), wherein the rotational angle sensor (14) is designed as an inductive sensor (14). In order to specify a sensor combination, having a rotational angle sensor (14) and a torque sensor (16), and a steering system (2) that are less susceptible to failure, according to the invention, the torque sensor (16) is designed as a magnetic sensor (16).
Patent•
20 Nov 2019
TL;DR: In this article, an actuator is coupled to the switch to close the switch after the plug contacts touch the socket contacts and open the switch before the contacts loose contact with the sockets contacts, thus preventing arcing.
Abstract: A plug-socket system 1a including: a plug 2a with at least two contacts 3a, 3b; a socket 4a with at least two contacts 5a, 5b for receiving the plug; current paths 6a, 6b from the plug or socket contacts to grid connectors 7a, 7b for a power grid 8; a switch 9a in at least one of the current paths; and an actuator 10a coupled to the switch to close the switch at least in a state in which the plug is fully inserted into the socket. The actuator may be designed to close the switch after the plug contacts touch the socket contacts and open the switch before the plug contacts loose contact with the socket contacts, thus preventing arcing. The actuator may include a mechanical sensor, magnetic/inductive sensor (13, figure 3) or capacitive sensor connected to a control input of the switch. The actuator may include a push rod (12, figure 5) or lever connected to the switch.