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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TL;DR: In this paper , a mathematical model of an ideal filamentary coil was employed to determine equivalent parameters of the sensor and sensitivity coefficients of tested physical quantities, which were determined on the basis of the measured value of the real sensor's impedance.
Abstract: This paper presents a practical way of using the method of evaluating the metrological properties of eddy current sensors. The idea of the proposed approach consists of employing a mathematical model of an ideal filamentary coil to determine equivalent parameters of the sensor and sensitivity coefficients of tested physical quantities. These parameters were determined on the basis of the measured value of the real sensor's impedance. The measurements were carried out with an air-core sensor and an I-core sensor while they were positioned at different distances from the surface of tested copper and bronze plates. An analysis of the influence of the coil's position in relation to the I core on the equivalent parameters was also carried out, and the interpretation of the results obtained for various sensor configurations was presented in a graphical form. When equivalent parameters and sensitivity coefficients of examined physical quantities are known, it is possible to compare even very different sensors with the employment of one measure. The proposed approach makes it possible to make a significant simplification of the mechanisms of calibration of conductometers and defectoscopes, computer simulation of eddy current tests, creating the scale of a measuring device, and designing sensors.
1 citations
Patent•
10 Aug 2016
TL;DR: The utility model as discussed by the authors discloses a control mounting bracket with automatic cooling and theftproof function, including mounting sleeve, mounting sleeve's lower extreme inside inside be equipped with miniature driving motor, miniature driving motors output shaft has the control cover body of installation camera.
Abstract: The utility model discloses a control mounting bracket with automatic cooling and theftproof function, including mounting sleeve, mounting sleeve's lower extreme inside be equipped with miniature driving motor, miniature driving motor's output shaft has the control cover body of installation camera, mounting sleeve's bottom still is connected with the circular -arc cover body, the circular -arc cover body covers the control cover body, the inside of the control cover body is equipped with temperature sensor, the controller that sets up in mounting sleeve is connected to the temperature sensor electricity, controller electricity connect set up the air inlet machine of control cover body upper portion both sides with go out the fan, the edge of the circular -arc cover body still be equipped with infrared inductive sensor, infrared inductive sensor electricity connection director, alarm device is connected to controller still electricity. The beneficial effects of the utility model are that: the sound construction, installation that can be better with fix a position, and can guarantee the operational environment of camera automatically to covering internal the cooling, prolong the life of camera, can also prevent burglary.
1 citations
01 Nov 2011
TL;DR: In this paper, a low-power interface for two-wire sensors is described for an intelligent eddy current sensor, but the concept is not restricted to inductive sensors only.
Abstract: In many industrial applications different sensors (magnetic, acoustic, optical) have to work under rough conditions. Smart sensors with integrated signal conditioning and processing avoid cable influences and are capable to reject further disturbance influences by signal processing of multi parameter measurements. This article describes a low-power interface for two-wire sensors. The sensor interface was developed for an intelligent eddy current sensor but the concept is not restricted to inductive sensors only.
1 citations
Patent•
01 Jun 2001
TL;DR: In this article, the authors describe a scissors for cutting and/or pruning, comprising an elongated base body, of which a fixed leaf is fixed, coupling articulatedly on the base body or on the fixed blade itself, the other moving mobile leaf that receives an alternate tilting movement by means of a motor element by using at least one intermediate transmission mechanism.
Abstract: Electrical scissors for cutting and/or pruning, comprising an elongated base body, of which a fixed leaf is fixed, coupling articulatedly on the base body or on the fixed blade itself, the other moving mobile leaf that receives an alternate tilting movement by means of a motor element by means of at least one intermediate transmission mechanism; characterized in that it includes an electronic control device incorporating at least one external circuit (15) and an internal circuit (16), as well as a lateral end-of-stroke sensor in closing (17), a lateral end-of-stroke sensor in opening (18). ) and a displaceable inductive sensor (19) related to the first two; all this in order that the scissors perform automatically a closing and opening cycle, each time an activating trigger or similar element is acted upon. (Machine-translation by Google Translate, not legally binding)
1 citations
01 Feb 2017
TL;DR: In this article, the target disc that its shape is nonlinearly changing and the sensor coils that are differentially arranged is designed, and the performance shows less than 1% accuracy when it is implemented in the roller blind.
Abstract: In the commercial building such as huge enterprise building, more accurate operation of the center-controlled roller blind. We design, in this work, the target disc that its shape is nonlinearly changing and the sensor coils that are differentially arranged. The performance shows less than 1% accuracy when it is implemented in the roller blind.
1 citations