It is composed of computer + LCD display and acquisition card (NI) controller control system. The advanced measurement and control software developed independently by NI LabView platform adopts fine solenoid valve and sensor control. The pressure control precision is high in the experimental range.
The control software is mature, user-friendly and reliable.
The system adopts PID control, which makes the system stable without steady-state error, improves the dynamic characteristics of the system in the process of mediation, eliminates the residual error in advance control, makes the system more stable and accurate, and the output precision of the control system is good.
The collected data are stored in the database for inquiry and printing (which can be output in the report format according to the customer's needs).
Control system for computer-based control, increase the sensitivity of the system, control, man-machine interface, data processing, communication and other functions integrated in a PC processing plan, reduce the amount of information processed by CPU, improve processing performance, improve the overall speed of operation, expand the overall storage and data processing.
Pressure test system adopts gas-liquid electric proportional control, blasting pressure source adopts Cester self-developed pneumatic high-pressure pump, through the principle of gas-liquid equilibrium to complete blasting pressure control.
The parameters such as test pressure and holding time can be stopped according to the request, and the relevant parameters can be stopped.
In the process of the workpiece test, the arbitrarily controllable items can not meet the set request for alarm shutdown. At the end of the experiment, the equipment automatically shuts down and alarms. The data of independent experiment data and graphics are automatically recorded and stored in the computer.
Computer data acquisition, control and management are adopted. The computer automatically records and keeps the relevant data, and can print out the verification report and pressure curve directly. Pressure, number of experiments, laboratory manufacturer and experimental data can be set by human-machine circle, and can be printed out with printer.
Computer control and high-pressure supercharging system, with data transmission line in the middle, can be arbitrarily split, reasonable structure, beautiful planning, using non-welded pipeline connection, eliminating leakage, with good stability, low noise, good sealing, easy device adjustment, maintenance and other characteristics.
Experimental pressure stepless conditioning, controlled by computer program, can automatically fill liquid, exhaust gas, boost pressure, hold pressure, relieve pressure and drain liquid after setting experimental parameters; In the process of experimental pressure experiment, can arbitrarily set single or multi-stage hold pressure test, can also be directly blasted after holding pressure or measuring leakage, the boost speed can be maintained constant, and can be completed. Stepless conditioning, the speed of pressure rise can be shown; the specimen bursts and the blasting equipment automatically stops the pressure; the experimental procedures (optional) are as follows:
Constant Speed Boost-Blasting
(2) Constant speed boost-hold-boost-blasting
(3) Constant speed boost-hold-release
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