瑞安市君安汽车部件厂
RUIAN JUNAN AUTO PARTS FACTORY
Signal modulate circuit analysis comparison

Domestic factory1 products

Thiscircuit only simply amplified the signal. Unablefit the output signal curve and the standard value. Low production costbut error bigger.


Domestic factory 2 products:

 After signal is amplified by the circuit, usingordinary 8 bit or 10 bit analog-to-digital converter (ADC) to get signalacquisition, The main control chip uses the traditional 8 bit microcontroller(MCU) for data communications calibration processing. Output signal accuracyhas been improved a bit, but not reach high level, because of the lowresolution of signal acquisition and poor microcontroller performance.


Junan products

We used high precision analog-to-digital converter (ADC) forsignal acquisition and main control chip with high performance microcontroller(MCU) for data communications calibration processing. Enable our products outputhigh accuracy air flow signal, and the performance iscompletely up to standard.


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