[ China Instrument Network Instrument Development ] Recently, the Guangdong Provincial Quality Supervision Bureau organized and hosted the Science and Technology Plan Project of the Provincial Quality Supervision Bureau undertaken by the Guangdong Metrology Institute, "Digital Double Clamp Phase Voltammetry Calibration Device", "Power Frequency Magnetic Field" Acceptance meeting for the development of the same frequency phase shift immunity standard device. The acceptance expert group consists of Professor Hu Binjie from South China University of Technology, Xu Shaohui, Senior Engineer of the Fifth Institute of Electronics, Ministry of Industry and Information Technology, Yaodao Gaogong, Guangdong Institute of Electronic and Electrical Engineering, and Liang Zhuojun, Senior Engineer of Foshan Quality Measurement and Inspection Center.
The "Digital Double Clamp Phase Voltammetry Calibration Device" project was completed by the Electromagnetic Room of the Metrology Institute of Guangdong Province. Based on the AC standard signal source and multi-channel high-precision amplifier, the project uses a combination of DSP module and ARM7 module to develop a digital double-clamp phase voltammeter calibration device to realize a digital double-clamp phase voltammeter. Adjustment of phase and UU, II and UI phases and calibration of parameters. The project applied for 1 invention patent and 1 utility model patent, published 2 related papers, and compiled 1 manual for the digital double-clamp phase voltammeter calibration device. The project products are calibrated by Guangzhou Institute of Metrology and Testing Technology, and the main technical indicators meet the requirements of the task book (contract).
The project “Development of Power Frequency Magnetic Field Same Frequency Phase Shift Immunity Standard Device†was completed by Yu Hongwen, Senior Engineer of Environmental Performance Room of Guangdong Metrology Institute. The project uses embedded MCU control technology to develop a set of power frequency magnetic field same frequency phase shift immunity standard device, which realizes the synchronous acquisition and the same frequency phase shift of the voltage signal of the tested product and the zero crossing of the power frequency field coil current signal. The phase shift range is 0°-359°. At the same time, the device automatically collects and records the maximum measurement error of the tested product under different phases and orientations of the power frequency magnetic field. The project has obtained 2 utility model patents, 1 software copyright registration, and 2 papers. The prototype of the project research and development is calibrated by China Saibao Laboratory, and the main technical indicators meet the requirements of the task book (contract).
The above-mentioned project achievements have been applied in South China, and the project funds are used reasonably. The acceptance expert group agreed that the two projects have completed the research contents specified in the task book (contract), met the prescribed technical indicators, and successfully passed the acceptance.
(Original title: Science and technology projects of two provincial bureaus passed the acceptance test)
Electric hydraulic portable light weight portable volume small far-light screw steel hand-held Steel Bar Cutting Machine
The steel Bar Cutting Machine is a kind of tool used to shear steel bars.
There are automatic steel cutting machine and semi-automatic steel cutting machine.
It is one of the necessary equipment for steel rebar processing, and it is mainly used to cut off the length of rebar in buildings, Bridges, tunnels, power stations and large water conservancy projects.
Compared with other cutting equipment, steel bar cutting machine has the characteristics of light weight, low energy consumption, reliable operation and high efficiency.
There are automatic steel cutting machine and semi-automatic steel cutting machine.
The fully automatic cutting machine, also called electric cutting machine, is used to control the cutting knife incision through motor transformation into kinetic energy to achieve the effect of shearing steel.
While semi-automatic is manual control of the incision, so shear reinforcement operations.
And more should belong to hydraulic steel bar cutting machine bar cutting machine is divided into charging type and portable two categories.
Electric hydraulic steel bar cutting machine mainly consists of motor, hydraulic transmission system, control device, fixed blade and so on.
Working principle: the motor drives the eccentric shaft to rotate, the eccentric surface of the eccentric shaft to back and forth motion with the plunger in contact with it, so that the plunger pump produces high pressure oil into the cylinder body, drives the piston in the oil cylinder, drives the moving blade forward, and cuts off the steel bar by phase with the fixed blade fixed on the support.
The hydraulic system of manual hydraulic steel bar cutting machine is composed of piston, plunger, hydraulic cylinder, pressure lever, pin pulling, reset spring, oil storage barrel and drain and oil suction valve.
Portable Rebar Cutter
Portable Rebar Cutter,Rebar Cutter,Electric Rebar Cutter,Hydraulic Rebar Cutter
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