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Dynamic Calibration Device and Calibration Method of Built-in Hatch Door Force Measurement Box Balance

A box-type balance and dynamic calibration technology, which is applied to measuring devices, force/torque/power measuring instrument calibration/testing, instruments, etc., can solve the problems of balance dynamic response lag, dynamic error, and poor dynamic performance of box-type balances, etc. , to facilitate operation and loading, reduce interference effects, and reduce test costs

Active Publication Date: 2018-10-23
AVIC SHENYANG AERODYNAMICS RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]Currently, box-type balances are basically used in the force measurement tests of internally embedded hatches. Perform dynamic calibration
Dynamic calibration is the most direct and effective way to investigate the dynamic performance index of the sensor. Without six-dimensional dynamic calibration of the box balance, it is impossible to fully grasp the dynamic performance indicators of each element of the box balance, and it is not sure whether the dynamic performance of the box balance meets the requirements. Requirements for dynamic hatch test conditions
In this case, if the dynamic performance of the box-type balance is poor, the working frequency band of the balance itself is lower than the frequency of the load signal to be measured, which will inevitably lead to a lag in the dynamic response of the balance, so that the output of the balance cannot truly reflect the transient state during the rapid movement of the hatch door. load, resulting in large dynamic errors

Method used

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  • Dynamic Calibration Device and Calibration Method of Built-in Hatch Door Force Measurement Box Balance
  • Dynamic Calibration Device and Calibration Method of Built-in Hatch Door Force Measurement Box Balance
  • Dynamic Calibration Device and Calibration Method of Built-in Hatch Door Force Measurement Box Balance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A dynamic calibration device for a box-type balance with a built-in hatch door force measurement test, which consists of: a calibration platform 1, a lifting unit is installed in the calibration platform, and a calibration base 2 is installed on the top of the calibration platform 1. A cassette balance 3 is housed on the described calibration base, and a loading mechanism is provided on the described cassette balance. The above positioning pin holes and the above mounting screw holes are fixed on the calibration platform.

Embodiment 2

[0026] For the dynamic calibration device of the box-type balance of the embedded hatch door dynamometer test described in Embodiment 1, the described loading mechanism includes the loading head 4, the loading frame and the auxiliary pulley frame, and the loading head, the loading frame and the auxiliary pulley frame are mounted on The fixed pulleys are respectively arranged, and the v-grooves of the pulleys are used to wind the loading wire;

[0027] Connect the steel wires to the screws at the loading points of the three force elements of the loading head, mount the weight with the help of the auxiliary pulley frame, and realize the dynamic step calibration test of the three force elements by manually cutting the steel wires;

[0028] Steel wires are wound around the pulleys on the loading head. One end of the steel wires is fixed on the loading frame 5, and the other end is suspended with a weight 8 by means of an auxiliary pulley frame 7. The dynamic step calibration test o...

Embodiment 3

[0030] For the dynamic calibration device of the box-type balance of the built-in hatch door dynamometer test described in embodiment 1 or 2, the described lifting mechanism includes a spiral lifting mechanism 9, and a linear grating ruler 10 is installed at the bottom of the calibration platform; the described The linear grating scale is connected with the cross roller unit 11; a set of positioning pin holes and mounting screw holes are processed on the upper part of the calibration platform, and the calibration platform passes through the positioning pin holes, the mounting screw holes and the The auxiliary pulley frame and the loading frame are fixed on the calibration platform.

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Abstract

The invention discloses a dynamic calibration device and method for a box-type balance for an embedded cabin door force measurement test. At present, the box-type balance is adopted in most of embedded cabin door force measurement tests, only the box-type balance needs to be statically calibrated before a test, only the static index of the balance is inspected, and no dynamic calibration is carried out. The dynamic calibration device for the box-type balance for the embedded cabin door force measurement test comprises a calibration console body (1), wherein the calibration console body is internally provided with a lifting unit; the top of the calibration console body is provided with a calibration base (2); the calibration base is provided with the box-type balance on which a loading mechanism is arranged; and the box-type balance (3), the calibration base and a loading head are integrated, and are fixedly arranged on the calibration console body through a locating pin hole and a mounting screw hole. The dynamic calibration device and method are applied to dynamic calibration of aviation embedded cabin door force measurement test balances.

Description

Technical field: [0001] The invention relates to a dynamic calibration device and calibration method of a box-type balance for a force-measuring test box with a built-in hatch door. The device can generate dynamic step force sources in six directions, and can realize dynamic calibration of a six-dimensional unit of a box-type balance for a hatch test test. Background technique: [0002] At present, box-type balances are basically used in the force-measuring tests of embedded hatches. Before the test, only the box-type balances are statically calibrated, and only the static indicators of the balances are examined, without dynamic calibration. Dynamic calibration is the most direct and effective way to investigate the dynamic performance index of the sensor. Without six-dimensional dynamic calibration of the box balance, it is impossible to fully grasp the dynamic performance indicators of each element of the box balance, and it is not sure whether the dynamic performance of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L25/00
Inventor 张洋赵长辉李小刚赵晓光
Owner AVIC SHENYANG AERODYNAMICS RES INST
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