比例灵敏度
Based on the reactions between oxygen adsorbed on nano tin oxide thin film surface and hydrogen sulfide, it was obtained that the sensitivity of nano thin film gas sensor was proportional to hydrogen sulfide gas concentration of 1/ 2 power.
利用纳米二氧化锡薄膜表面吸附氧和硫化氢气体的反应式,得出了纳米薄膜元件的灵敏度与硫化氢气体浓度的1/2次方成正比。
Because of ultrasonic attenuation in organism is proportional to frequency, 2 MHz ultrasonic distance and receiving sensitivity.
超声波在生物体中的衰减与频率成正比, 使用2MHz超声换能器由于衰减大致使穿透深度小、接收灵敏度低、仪器综合灵敏度难以提高.
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