Impact specimen fracture picture taking device

Abstract

The invention relates to a photogrammetry device. In order to overcome the defect that an existing method of conducting fracture ductile fracture area percentage measurement through a film type camera is not suitable for radioactive impact specimen measurement, the invention provides an impact specimen fracture picture taking device. The impact specimen fracture picture taking device comprises a stepping motor control system, a camera control and digital image collecting system, a stepping motor, an industrial digital camera, a continuous zooming and amplifying lens, a camera lifting platform, an annular LED visual light source, a pull rod, an impact specimen clamping base and a clamping base rail. The picture taking device is suitable for measuring the impact specimen fracture ductile fracture area percentage, and measurement data can be easily stored; the camera shooting quality of the appearance of a fracture can be directly determined in the measurement process, and adjustment can be directly conducted when imaging is not clear; the measurement accuracy for the impact specimen fracture ductile fracture area percentage is high, and data accuracy is high; the picture taking device is easy to operate in the use process, and long-distance measurement of an impact specimen with the large radioactive dosage can be achieved.

Description

Technical field [0001] The invention relates to a photographic measuring device, in particular to a photographing device for the fracture of an impact sample. Background technique [0002] In the impact test, the percentage of fracture toughness fracture area of ​​the impact specimen is an important test data. Currently, the main equipment used to measure the percentage of fracture ductile fracture area is a film camera. The specific measurement method is as follows: take a photograph of the fracture with a film camera, and measure the percentage of fracture toughness and fracture area after magnification and washing into a film. The use of film cameras to measure the percentage of fracture toughness and fracture area has the following shortcomings: first, the relevant measurement data is not easy to save; second, the shooting quality of the fracture topography cannot be directly determined. If the image is not clear, the camera can only be taken again. For radioactive sample f...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the existing measurement data of fracture toughness fracture area percentage measurement using film camera, it is not easy to save, the shooting quality of the impact sample fracture shape cannot be directly determined, the measurement accuracy and data accuracy are low, and it is not suitable for radioactive impact testing. Insufficient in sample measurement etc., the present invention provides a kind of impact sample fracture photography device

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