瑞安市君安汽车部件厂
RUIAN JUNAN AUTO PARTS FACTORY
Testing technology and equipment analyze for air flow sensor

At present, theproduction technology and R&D capability of most domestic automobile airflow meter enterprise still have been relatively backward. Detection andcalibration are generally used quite lag behind technology and equipment.


Domestic factory1 products

Usually usingordinary air blower as air source, flow control with valve. Calibration processis commonly rely on manually adjust the potentiometer. Talibration can only becarried out within the range of two working points, the signal output curve cannot be fitted, resulting in a large error of the output signal.


Domestic factory2products

Used ordinary air blower as air source,flow control with frequency converter. The calibration process adopt datacommunication to achieve automatic calibration, and can be used for calibrationof multiple operating points. Though the signal output curve and the standardvalue of the fitting are significantly improved, the ordinary air blower iseasy to be influenced by the air pressure, temperature, operating condition andso on, cause the flow stability lower. The frequency converter can producehigher harmonic which bring elecromagnetic interference to peripheral equipmentis difficult to eliminate. That lead the signal distortion and the calibrationaccuracy is not high.

Junan products

Our factory adopt the internationaladvanced gas flow calibration technology, the equipment stability is extremelyhigh, The calibration process uses the upper computer data communication. Thewhole process automatically carries on the high accuracy calibration.


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Linda:+ 86 13958867762