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In this paper, the design, fabrication, and response characteristics of the micromachined flow sensor were presented. The flow sensor comprising of two hot wires detects the flow rate by measuring the heat transfer of the two hot wires with mesh–membrane structure, which were supported by double-layer cantilevers and suspended in the flow channel. Polydimethylsiloxane instead of glass was used to...
A portable Surface Plasmon Resonance (SPR) instrument based on a monolithic scanner chip — LM9833 was developed. With this compact design, the instrument can provide 16 bit grayscale resolution at 100 frames per second, support up to 16384 pixels linear CCD sensor, enable illumination control and USB interface. The instrument performance was tested and the refractive index sensitivity is about 6×10...
An effort has been made to develop a kind of CuO-doped SnO2 gas sensors for detecting trace amount of H2S gas at relative low temperature. The CuO-doped SnO2 hollow nanospheres are prepared from SnO2 hollow spheres (employing carbon nanospheres as temples) and Cu precursor by dipping method. The sensitivity and selectivity of the sensors based on the as-prepared CuO-doped SnO2 hollow nanospheres have...
The BC Hydro transmission network includes 33 wholly owned 500 kV circuits and three 500 kV interconnections with other utilities. Eleven of these lines include series compensation, and many were upgraded to provide single-pole tripping (SPT) capability to improve power transfer capability and stability margins. To reduce construction costs, the majority of these lines are not shielded, which increases...
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