Abstract: A basic zinc chloride particulate matter and a preparation method therefor. The basic zinc chloride particulate matter mainly consists of basic zinc chloride particles. In the basic zinc chloride particulate matter, D10>100 ?m, and D95>450 ?m. The basic zinc chloride particles do not contain adhesives. The basic zinc chloride particles contained in the basic zinc chloride particulate matter are approximately spherical, and the basic zinc chloride particles with the particle diameter>500 ?m in the basic zinc chloride particulate matter accounts for 1% or less of the total mass of the basic zinc chloride particulate matter.

Abstract: A basic zinc chloride particulate matter and a preparation method therefor. The basic zinc chloride particulate matter mainly consists of basic zinc chloride particles. In the basic zinc chloride particulate matter, D10>100 ?m, and D95>450 ?m. The basic zinc chloride particles do not contain adhesives. The basic zinc chloride particles contained in the basic zinc chloride particulate matter are approximately spherical, and the basic zinc chloride particles with the particle diameter >500 ?m in the basic zinc chloride particulate matter accounts for 1% or less of the total mass of the basic zinc chloride particulate matter.

Abstract: The present invention provides a multi-line array laser three-dimensional scanning system and a multi-line array laser three-dimensional scanning method, the system performs precise synchronization and logic control of the multi-line array laser three-dimensional scanning system by a programmable gate array FPGA; employs a line laser array as the projection pattern light source, sends trigger signals to a stereoscopic image sensor, a inertial sensor and a line laser array by FPGA; wherein a upper computer receives image pairs taken by the stereoscopic image sensor, and codes, decodes as well as performs a three-dimensional reconstruction for the laser line array patterns in the image pairs, performs a three-dimensional reconstruction for the feature points on the surface of the measured object, and matches and aligns the three-dimensional feature points at different times; the system predicts and corrects the matching calculation by employing a hybrid sensing technology, which registers and stitches the time

Abstract: The present invention provides a multi-line array laser three-dimensional scanning system and a multi-line array laser three-dimensional scanning method, the system performs precise synchronization and logic control of the multi-line array laser three-dimensional scanning system by a programmable gate array FPGA; employs a line laser array as the projection pattern light source, sends trigger signals to a stereoscopic image sensor, a inertial sensor and a line laser array by FPGA; wherein a upper computer receives image pairs taken by the stereoscopic image sensor, and codes, decodes as well as performs a three-dimensional reconstruction for the laser line array patterns in the image pairs, performs a three-dimensional reconstruction for the feature points on the surface of the measured object, and matches and aligns the three-dimensional feature points at different times; the system predicts and corrects the matching calculation by employing a hybrid sensing technology, which registers and stitches the time