Two scientific and technological projects undertaken by the Metrology and Testing Institute of Xingtai City, Hebei Province passed the acceptance test

[ China Instrument Network Instrument R&D ] Recently, two provincial bureau science and technology projects undertaken by the Xingtai City Metrology and Testing Institute of Hebei Province, "Dynamic Non-contact Four-wheel Alignment Calibration Device", "Gas Vehicle Simple Transient Operating Method Flow Analyzer" The Calibration Device passed the expert group's acceptance.

The four-wheel aligner is an essential testing device for all automobile manufacturers, testing stations and repair shops. Regular positioning of the wheels is an important part of ensuring safe driving of the car. The dynamic non-contact four-wheel aligner calibration device is a device for calibrating the main metrological performance of the four-wheel aligner by simulating the positioning angle of the automobile wheel.

The device adopts computer wireless automatic control technology, which can realize online dynamic non-contact calibration for different specifications of four wheel aligners, automatically generate original records, automatic judgment errors and conclusions, and make up for the existing 3D image type and online non-contact type four. The blank of the wheel alignment instrument calibration work improves the accuracy of the measurement results of the automobile four wheel aligner and ensures the safety of people's lives and property.

In recent years, with the rapid growth of China's automobile ownership, automobile emissions pollution has become one of the main sources of pollution. In order to ensure the accurate and reliable value of the existing vehicle emission detection equipment, the gasoline vehicle simple transient condition method uses a flow analyzer calibration device to optimize the existing domestic equipment, and installs a high-precision flow meter, a stepping motor, a touch screen, High-precision pressure and temperature measuring devices realize real-time storage and export of test data, accurately determine the stability of the test equipment, provide objective and accurate test data for the environmental monitoring department, effectively control vehicle exhaust emissions, and reduce air pollution. .

(Original title: Two technical projects of the Municipal Metrology and Testing Institute passed the acceptance)