Ultra-high-speed movement speed measurement device
A speed measuring device, ultra-high-speed technology, applied to devices using electric/magnetic methods, etc., can solve problems such as complex measurement process, complex equipment, and low precision, and achieve accurate and simple measurement, low cost, and strong practicability
Inactive Publication Date: 2014-07-16
张伟
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Problems solved by technology
[0003] The purpose of the present invention is to provide an ultra-high-speed motion speed measuring device, in order to solve the problems of the existing high-speed object speed detection equipment that the measurement process is complex and requires multiple repetitions, the accuracy is not high, the equipment is complicated, and the cost is high
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specific Embodiment approach 1
[0009] Specific implementation manner one: such as figure 1 As shown, it is composed of a detection coil 1, a magnetic body 2, a steel wire with a magnetostrictive effect 3, a bracket 4, a switch circuit 5, a rectifier circuit 6, a boost circuit 7, a voltage divider circuit 8, a processor circuit 9, and an amplifier Circuit 10 composition;
[0010] The two ends of the straightened steel wire 3 with magnetostrictive effect are insulated and connected to the two ends of the bracket 4 respectively. The steel wire 3 with magnetostrictive effect passes through the center of the detection coil 1 and one end of the steel wire 3 with magnetostrictive effect Conductive connection with the output terminal of the switch circuit 5, the other end of the magnetostrictive steel wire 3 is grounded, the control terminal of the switch circuit 5 is connected with the on-off control output terminal of the processor circuit 9, and the input terminal of the switch circuit 5 is connected to the rectifi...
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The invention relates to the field of moving speed measuring of moving articles with high speed, in particular to an ultra-high-speed movement speed measurement device. The problems that an existing high-speed article speed measurement device is complex in measuring process, the process needs to be repeated for multiple times, accuracy is not high, the device is complex, and cost is high are solved. After a steel wire with magnetostrictive effect is pulled to be straight, two ends of the steel wire are respectively connected with two ends of a support in an insulation mode. The steel wire with the magnetostrictive effect penetrates through the center of a detection coil. One end of the steel wire with the magnetostrictive effect is connected with an output end of a switch circuit in an electric conduction mode. The other end of the steel wire with the magnetostrictive effect is connected on ground. A magnet body is arranged in an article with speed to be measured. The article with the speed to be measured is arranged on the right side of the detection coil and placed close to the steel wire with the magnetostrictive effect. The ultra-high-speed movement speed measurement device has the advantages that the accuracy of a distance meter is only determined by transmission speed and time resolution of the reverse mechanical wave in the steel wire with the magnetostrictive effect, and therefore high accuracy and high stability can be obtained at the same time, and the accuracy of the device is 0.25%-0.6%.
Description
Technical field [0001] The invention relates to the field of detection technology for moving speed of high-speed moving objects. Background technique [0002] It has always been a difficult point to accurately measure the speed of high-speed moving objects from several hundred meters to several kilometers per second. High-speed photography is usually used. The measurement process is complicated and requires multiple repetitions, the accuracy is not high, the equipment is complicated, and the cost is high. For example, the current test of warhead speed generally uses sky screen targets, coil targets, and tin foil targets as the target of the zone interception device. It is a cut-off target. The warhead is used to connect the front and back layers of tin foil to realize the start and stop of the chronograph. The measurement process is time-consuming and labor-intensive. Summary of the invention [0003] The purpose of the present invention is to provide an ultra-high-speed motion ...
Claims
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IPC IPC(8): G01P3/50
Inventor 张伟
Owner 张伟