Shen Feng, Lu Pin
IEEE Trans Ultrason Ferroelectr Freq Control. 2004 Feb;51(2):249-53.
For a multichannel quartz crystal microbalance (MQCM) device, the key problem in design is to minimize the frequency interference between adjacent channels. In this paper, the effects of interchannel separation on the resonance frequencies and frequency interference of the device are studied. The results show that, for the channels with the same size, the resonant modes will appear alternatively, and the frequency interference keeps oscillating in a very small scope in the cases of large interchannel separations. Based on the studies, the considerations for MQCM design also are discussed.
对于多通道石英晶体微天平(MQCM)器件,设计中的关键问题是使相邻通道之间的频率干扰最小化。本文研究了通道间距对该器件共振频率和频率干扰的影响。结果表明,对于尺寸相同的通道,共振模式会交替出现,并且在通道间距较大的情况下,频率干扰在非常小的范围内保持振荡。基于这些研究,还讨论了MQCM设计的注意事项。