介紹利用波長為3 cm 的微波技術(shù)對中藥丸料濕度的測量,主要有微帶式微波固態(tài)信號源,微帶式測濕傳感器,選頻放大器,微波透射衰減量與中藥丸料濕度的線性關系等。通過實驗結(jié)果表明,由于中藥丸料密度一致性非常好,因此,只需單一測量微波功率衰減量,便可實現(xiàn)對藥料的濕度測量,對于中藥生產(chǎn)業(yè)具有一定的實際應用意義。
關鍵詞: 微波固態(tài)信號源; 微帶濕度傳感器; 對數(shù)放大器
Abstract : The measurement of humidity of material for Chinese pill utilizing microwave technology with three2 centimeter wavelength is introduced. It includes microstrip microware solid2state singed source ,microstrip humid2 ity sensor ,frequency2selection amplifier and the linear relationship of microware transmission damping capacity and the moisture MC of Chinese pill material etc. According to the experimental result ,because the density2con2
formability of material for Chinese pill is very well ,nothing remains but to measure microwave power damping capacity ,measuring the humidity of material for Chinese pill can be realized ,and it has certain practical applica2 tion meaning to Chinese medical production industry.
Key words : microwave solid2state signal source ; microstrip humidity sensor ; logarithm amplifier