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Shaft force measuring sensor

A technology for measuring sensors and sensor substrates, applied in the direction of measuring force, measuring devices, instruments, etc., can solve the problem that the range and installation size of the axial force sensor cannot be taken into account at the same time, and achieve the effect of low cost, high reliability and wide frequency band

Active Publication Date: 2019-08-06
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a sensor for axial force measurement to solve the problem that the range and installation size of the existing axial force sensor cannot be taken into account at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] The resistance of the sensitive element 1 and the resistance strain gauge 1-1 is 120Ω.

[0029] The assembly part of the sensor base 2 is a second cylinder with a matching dimension of φ40mm.

[0030] The sensor base 2 has M36 external threads on the peripheral surface of the second cylinder tail end.

[0031] In the sensor base 2, the first annular groove 2-2 on the second cylinder is 34mm wide and 0.5mm deep, and the first plane 2-1 between the two first annular grooves 2-2 is 14mm long and 2mm deep .

[0032] In the sensor substrate 2, the two wiring slots 2-3 on the second cylinder are 2mm wide and 2mm deep. The diameter of the two wiring holes 2-5 on the top end surface of the first cylinder is φ2mm.

[0033] In the sensor base 2, the second annular groove 2-4 on the outer circumference of the first cylinder has a width of 52 mm and a diameter of φ50 mm. Both the top boss and the bottom boss have a width of 8mm and a diameter of φ65mm, and the distance between ...

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Abstract

The invention discloses a shaft force measuring sensor that can be used to measure an instant impact force on an installing shaft in the complex condition. The sensor comprises a group of strain gauges arranged in radial symmetry and a sensor body. When a load is acted on the radial direction of the shaft force sensor, a Wheatstone half-bridge circuit composed of the foil gauges measure the bending strain of the sensor body. The size of the sensor is the same with that of the installing shaft of a device, and can be replaced without loss in the using process. The problems that a traditional shaft force sensor is large in size, high in additional weight, changes the original installation state and further causes a large measurement error are solved.

Description

technical field [0001] The invention belongs to the field of electronic testing, and in particular relates to a sensor for axial force measurement, which is used in artillery shooting tests to test the instantaneous impact force suffered by a high-speed plane. Background technique [0002] As an important part of the artillery, the high-level machine plays the role of a high-low machine and a balance machine. When a large-caliber artillery is fired, it will have an instantaneous impact of several tons or even a dozen tons on the high-level plane, and the high-level plane is extremely vulnerable to damage under extreme conditions of firing angle. The sensor for measuring the axial force of the high-level machine can be used to measure the instantaneous impact force on the high-level machine when the artillery shoots, and to verify whether the structural design of the high-level machine system is reasonable when it is subjected to the impact force, which is of great significan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/22
CPCG01L1/2218
Inventor 狄长安李大海彭澎顾克秋潘孝斌
Owner NANJING UNIV OF SCI & TECH
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