Multifunctional static strain indicator

Abstract

The invention discloses a multifunctional statical strain indicator which comprises a power supply, an amplifier, an analog-to-digital converting module and a bridge circuit converting module and adopts a connecting mode that the selecting signal input end of a purpose selecting controller is connected with the amplifier and the bridge circuit converting module, and consequently, the multifunctional statical strain indicator can be taken as a bridge circuit converting tool or a statical strain indicator that finishes entire sampling and data processing tasks according to user requirements, can adopt corresponding signal input and output ends that fit for the selected purpose so as to input and output signals, combines multiple functions into one instrument and improves the utilization rate of the instrument.

Description

technical field [0001] The invention relates to a multifunctional static strain gauge. Background technique [0002] Static strain gauge is a detection instrument specially designed to test the deformation of materials under the action of static force. It is usually measured by converting strain into electricity through a bridge composed of strain gauges or strain gauges and standard resistors based on the principle of bridge measurement. , the existing strain gauge is a kind of active instrument, which has a series of modules such as power supply, amplifier, A / D conversion, bridge conversion, CPU, memory (EPROM and RAM), I / O and driving circuit. When there are not many points to be measured but multiple tasks are required, multiple strain gauges can be used to complete a series of tasks such as sampling and data processing independently, but when there are many points to be measured but not many tasks, often The strain gauge is used in conjunction with the conversion box t...

AI Technical Summary

Problems solved by technology

[0002] Static strain gauge is a detection instrument specially designed to test the deformation of materials under the action of static force. It is usually measured by converting strain into electricity through a bridge composed of strain gauges or strain gauges and standard resistors based on the principle of bridge measurement. , the existing strain gauge is a kind of active instrument, which has a series of modules such as power supply, amplifier, A / D conversion, bridge conversion, CPU, memory (EPROM and RAM), I / O and driving circuit. When there are not many points to be measured but multiple tasks are required, multiple strain gauges can be used to complete a series of tasks such as sampling and data processing independently, but when there are many points to be measured but not many tasks, often The strain gauge is used in conjunction with the conversion box to complete the measurement task. Therefore, according to different task situations, the strain gauge either needs to be used in conjunction with other strain gauges, or needs to be used in conjunction with the conversion box, which brings inconvenience to the user's operation.

In essence, the existing conversion box is only a slave instrument, which only has a bridge conversion module. Since the strain gauge itself also has a bridge conversion module, how to use the strain gauge as a conversion box to improve the utilization rate of the instrument And then bring convenience to users, this has become a technical problem to be solved urgently by those skilled in the art

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