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The digital luggage scale is composed of sensors, high-precision ADC chip, main control chip and LED display screen. The working principle of electronic luggage scale.
The first is to collect the weight of the measured object through the pressure sensor and convert it into a voltage signal. The output voltage signal is usually small and requires accurate linear amplification through the front-end signal processing circuit. The amplified analog voltage signal is converted into a digital quantity by the A / D conversion circuit and sent to the single-chip computer of the main control circuit, and then the decode display is controlled by the single-chip computer to display the weight of the measured object.
In practical applications, in order to improve the accuracy of data acquisition and minimize external electrical interference, it is also necessary to add a signal adjustment circuit between the sensor and the A / D chip.
Functional description of luggage scale:
For specific product details, please contact us: digital scale supplier.