A device and method for detecting the response time and resolution of an electromagnetic sensor
An electromagnetic sensor and response time technology, applied in the direction of instruments, etc., can solve the problems of missed detection and repeated detection, restricting the application of detection technology, detection failure, etc., to achieve the effect of simple production, convenient use and low cost
Active Publication Date: 2016-11-02
EDDYSUN (XIAMEN) ELECTRONICS CO LTD
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Problems solved by technology
Taking the production of high-speed wire rods detected by electromagnetic sensors as an example, due to the mismatch between the sensor used and the detection speed, when the wire speed exceeds the speed range that the sensor can monitor, it will directly lead to detection failure, or cause missed detection and repeated detection work. To a certain extent, it restricts the application of relevant detection technologies in the industrial field
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[0023] Such as figure 1 In the shown embodiment, a device for detecting the response time and resolution of an electromagnetic sensor is characterized in that it includes a pipeline 1, a sensing object 2, a detected electromagnetic sensor 3, a sensor cable 4, and a detection instrument 5. The pipeline 1 Placed vertically in the radial direction, the outer surface of the pipeline 1 is processed with a vertical height scale 7, the zero scale 0 point in the height scale 7 is below, and a through hole 6 is processed on the wall of the pipeline 1 that is at the same level as the zero scale 0 point, The diameter of the through hole 6 is larger than the outer diameter of the detected electromagnetic sensor 3, and the pipeline in the area above the zero scale 0 is a free-falling pipe section 8, and a plurality of air holes 10 are processed on the wall of the pipe 1 of the free-falling pipe section 8. Influence of air resistance on free fall motion, the pipeline in the area below zero ...
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The invention discloses an electromagnetic sensor response time and resolution detection device and method. The electromagnetic sensor response time and resolution detection device comprises a pipe, a sensing object, an electromagnetic sensor to be detected, a sensor cable and a detecting unit. The law of free-fall motion is used for detecting sensor response time and resolution. The electromagnetic sensor response time and resolution detection device and method has the advantages of being low in cost, easy to produce and use and the like, effectively improves the detection efficiency of sensor response time and resolution and provides a speed range monitored by a sensor for a product in high-speed operation.
Description
Technical field [0001] The invention relates to a nondestructive testing device and method, in particular to a device and method for detecting response time and resolution of an electromagnetic sensor. Background technique [0002] In the field of sensors, response time and resolution are important parameters to measure sensor performance. The response time of the sensor is usually defined as the time required for the sensor to reach 90% of the final value after the detected quantity changes. Taking the electromagnetic sensor as an example, its response time is the time required for the amplitude on the signal time-amplitude curve to reach 90% of the highest amplitude. The resolution of a sensor is usually defined as the ability of the sensor to sense the smallest change in the measurand, and only when the change in the detected quantity exceeds the resolution will the output be displayed. Taking the electromagnetic sensor as an example, the resolution refers to the abilit...
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IPC IPC(8): G01D18/00
Inventor 林俊明
Owner EDDYSUN (XIAMEN) ELECTRONICS CO LTD