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A technology of impact table and table body, which is applied in the direction of speed/acceleration/shock measurement, test/calibration of speed/acceleration/shock measurement equipment, measurement device, etc. It can solve the problem of low accuracy, improve accuracy, reduce interference effect
Active Publication Date: 2011-05-04
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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[0003] There are mainly two methods for tracing the source of angular motion parameters in calibration. One is the absolute method, which directly traces the angular motion parameters to time and length (angle) with high accuracy; the other is the comparative method, which uses calibrated The standard sensor measures the value of angular motion, which has the advantages of low cost and simple method, but low accuracy
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[0014] The angle impact table includes a main motion structure 1 and a slave motion structure 2,
[0015] The main moving structure 1 includes: a working table 3, a moving spindle 4, a measuring grating 5, a grating base 6, a grating reading head 7, a casing 9, a main driving motor 8, an air bearing sleeve 10, a rigid coupling 12, Grating 11 for control, support seat 13, base 14, table body 15, upper cover plate 16, worktable 3 is installed on the upper shaft end of the movement spindle 4, grating 5 for measurement passes through the grating seat 6 and the movement spindle below the worktable 3 4 connected, the dynamic movement main shaft 4 rotates in the air bearing sleeve 10, the air bearing sleeve 10 is installed on the housing 9, the grating reading head 7 is installed on the housing 9 and placed outside the air bearing sleeve 10; The stator of the driving motor 8 is installed on the casing 9, and the rotor of the main driving motor 8 is connected with the moving main shaf...
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Abstract
The invention discloses an angular impact table for an excitation device for calibrating an angular motion sensor. The angular impact table comprises a master motion structure and a slave motion structure; the master motion structure comprises a worktable, a main motion shaft, a grating for measurement, a grating seat, a grating reading head, a shell, a main drive motor, an air floating shaft sleeve, a rigid coupling, a grating for control, a support seat, a base, a table body and an upper shield plate; and the slave motion structure comprises a sliding ring support, a coder rack, a motor rack, a slave drive motor, a rotor shaft, an angular contact ball bearing, a sliding ring, a sliding ring seat, a coder and a housing. By adopting the design method of the master and slave motion structures and the air floating shaft series in the main shaft, the interference of friction when the master motion body moves is reduced, and the accuracy of calibration is improved. Angular impact excitation mode and an absolute calibration method are adopted in the angular impact table, and a new method and a new means are provided for the calibration of the angular motion sensor.
Description
technical field [0001] The invention relates to an angular impact table for calibrating an excitation device of an angular motion sensor. Background technique [0002] Angular motion sensors require calibration before use. The excitation forms during general calibration mainly include the following types, static calibration and dynamic calibration. During static calibration, different excitation devices are selected according to the angular motion sensor. For example, the angular displacement sensor can be calibrated with a multi-tooth indexing table, the angular velocity sensor can be calibrated with a rate turntable, and the angular acceleration sensor can be calibrated on a centrifuge. During dynamic calibration, the angular vibration table can be used to generate sinusoidal motion at a single frequency to realize the angular calibration of the angular motion sensor’s dynamic angle, dynamic angular velocity and dynamic angular acceleration. This kind of dynamic calibrati...
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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/00
Inventor 彭军何群张力徐晓梅孙丰甲郭建麟
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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