Digital holographic microscope (DHM) as a quantitative phase imaging and surface metrological tool for microstructure objects has shown increased interest over the past two decades. In this paper, we report the development of two commercial digital holographic microscopes (reflection mode and transmission mode) for different applications. The two microscopes all use a CCD camera for recording of a digital off-axis hologram and a numerical method for reconstructing the hologram. The user-friendly software simultaneously provides an amplitude image and a quantitative phase image of the object. Furthermore, additional features include various image enhancements, cross-sectional and line profiling, measurement and data analysis tools. Some applications of the two products are presented on different specimens, such as MEMS, cells.
With the development of sensor technology, wireless senor network has been applied in the medical, military,
entertainment field and our daily life. But the existing available wireless senor networks applied in human monitoring
system still have some problems, such as big power consumption, low security and so on. To improve senor network
applied in health monitoring system, the paper introduces a star wireless senor networks based on msp430 and DSP. We
design a low-cost heart-rate monitor senor node. The communication between senor node and sink node is realized
according to the newest protocol proposed by the IEEE 802.15.6 Task Group. This wireless senor network will be more
energy-efficient and faster compared to traditional senor networks.
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