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首页> 外文会议>International Conference on Electronic Measurement amp; Instruments(ICEMI'2005) vol.2; 20050816-18; Beijing(CN) >Microwave Measurement System of Chinese Pill Material's Moisture Content Based on Microwave Resonator
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Microwave Measurement System of Chinese Pill Material's Moisture Content Based on Microwave Resonator

机译：基于微波谐振器的中药材水分含量微波测量系统

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摘要

A new microwave measurement method for moisture content of Chinese pill material is proposed in this paper. According to this method, a measurement system is designed for moisture content real-time measurement on Chinese pill production lines. In this system, moisture content can be measured by a specially designed microwave resonator which has a center hole. When Chinese pill material pass through the center hole, its density and moisture will cause resonant frequency excursion (RFE) and microwave attenuation (MA) of the resonator. Under the same moisture, density is only related to MA. If RFE and MA are detected, we can calculate moisture content of Chinese pill material, the change of density would not affect the calculating result of moisture content. In order to get high accuracy, a center-certain fuzzy clustering algorithm is proposed. According to the response characteristic of microwave resonator and the fuzzy clustering algorithm, we designed a high accuracy microwave measurement system which can measure moisture content on Chinese pill product lines. Experimental results showed that the measurement system had high accuracy on high speed production line; its accuracy varied from 92 percent to 96 percent in different months.
机译：提出了一种新的中药材水分测定方法。根据这种方法，设计了一种测量系统，用于在中国药丸生产线上实时测量水分含量。在该系统中，水分含量可以通过专门设计的带有中心孔的微波谐振器进行测量。当中国药丸材料通过中心孔时，其密度和水分将导致谐振器的谐振频率偏移（RFE）和微波衰减（MA）。在相同湿度下，密度仅与MA有关。如果检测到RFE和MA，就可以计算出中国药丸材料的水分含量，密度的变化不会影响水分含量的计算结果。为了获得较高的精度，提出了一种中心确定的模糊聚类算法。根据微波谐振腔的响应特性和模糊聚类算法，设计了一种可以测量中国药丸生产线上水分含量的高精度微波测量系统。实验结果表明，该测量系统在高速生产线上具有较高的精度。在不同月份中，其准确性从92％到96％不等。

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