Papers by Keyword: Electronic Scale

Abstract: A new automatic calibration system for electronic scale with image identification is developed. The system is composed with mechanical part, pneumatic components, PLC, USB camera and computer. Labview is the developing platform with user interface, PLC is controlled by Labview via OPC configuration to load or unload the standard weights, image machine vision technology is used to automatic recognize the LED char displayed on electronic scale.

Abstract: In the paper we put forward a design about electronic scale based on STC89C52,which includes data acquisition circuit, control system circuit, LCM1602 liquid crystal display circuit, buttons calibration circuit, alarm circuit and serial interface communication circuit. Meantime we develop the AD conversion program, numerical conversion program, display drivers program, EEPROM memory reading and writing program, buttons calibration program, and the writing of online control program. Then we realize the design of multi-function electronic scale and present the improved scheme. Finally system tests show that the system performance is stable, it can accurately calibrate to zero, system alarm function is good, and online control function is steady.

Abstract: The growth of nano CVD diamond films on low index faces such as (111) face and (100) face under different proposed surface chemical reaction model was simulated by using Kinetic Monte Carlo (KMC) method from atomic scale. The results, for example the influence of deposition time t, substrate temperature T_s, and atomic hydrogen concentration [H] on the film deposition rate, surface roughness, and H embedded in the film under different processing conditions, were systematically analyzed and compared. And the adsorption of various species on {111}-oriented diamond cluster was preliminarily computed from electronic scale by Local Density Approximation (LDA) method to assist understanding the surface adsorption mechanism. It is indicated that the film morphology and quality obtained from atomic scale KMC simulation varies according to the chemical reaction models. And our initial electronic scale computation on {111}-oriented diamond cluster showed that single-carbon species can be adsorbed on the activated site more easily than double-carbon species and the former will result in a more stable state than the latter. In order to reveal the nano CVD diamond film growth mechanism, more work about various species adsorption on many different morphological CVD diamond surfaces is needed.