Journal of Jianghan University(Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (5): 58-61.

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Design of Portable Type TSP Sampler

ZHAO Pei-yu1，LIU Li-ming2   

  1. 1. School of Electromechanical and Architectural Engineering，Jianghan University，Wuhan 430056，Hubei，China；2. Wuhan Analytical Instrument Factory，Wuhan 430015，Hubei，China
  • Online:2013-10-12 Published:2013-12-03

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Abstract: A portable type TSP sampler is designed according to the market demand. The sampler uses STC12C5A60S2，an enhanced 51 core SCM as controller，customized section type large screen LCD as displayer. Automatic constant flow sampling is achieved with using the chip of HX711，a 24 bit A/D converter，and M1210，a differential pressure sensor，and uses the flow differential signal to control the air pump.

Key words: TSP, sampler, SCM, HX711, differential pressure sensor, PWM

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