Abstract
A new kind of measuring principle of reading data across the diameter of a target image is proposed for high-accuracy measurements of artillery-chamber parameters. A new kind of ruler target mechanism is designed to read the cross-diameter data. The ruler target mechanism is pushed into the chamber by a driver mechanism. It moves along the axis of the chamber, and the sequence images are collected. The radial displacement of the cross-measurement claw can be obtained by processing the change of inscribed lines on the ruler target, and the current diameter, volume and conical degree of the chamber can all be acquired by referring to the demarcating annulus size. Measurement precision is analysed based on error propagation theory, with the diameter and volume parameters as examples. According to this principle, the measurement prototype is designed, and experiments are conducted on it. We show that the measurement error of the diameter is no more than 10 µm, and the volume error of the artillery chamber is less than 2‰, which satisfies the practical engineering requirement.
Highlights
An artillery chamber is a space that accommodates the gunpowder case, obturator and propellant powder and ensures that the powder burns
The measurement claws are tested by the precise displacement device
Every measurement claw is calibrated by taking the highprecision grating scale as a calibration reference
Summary
An artillery chamber is a space that accommodates the gunpowder case, obturator and propellant powder and ensures that the powder burns. The axial displacement distance of the grating ruler is Li. The host computer collects the scale target image sequence with a camera, and diameter data are obtained from image processing. The exact section diameter information of the current position can be obtained through image processing.[11] The axial displacement information can be measured by the circular grading mount at the axial displacement drive device The static parameters such as volume, inflection point, taper and length of chamber can all be calculated through processing the axial displacement and diameter. Assuming the taper angle is a, we can obtain
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
