Spectrometer is an essential and necessary optical element used for measuring the chemical components and content of the matter. The development of miniature spectrometers can be traced back to 1980s. The development ...Spectrometer is an essential and necessary optical element used for measuring the chemical components and content of the matter. The development of miniature spectrometers can be traced back to 1980s. The development state and different manufacturing methods of micro-spectrometers are presented. Finally, we analyze the miniaturization trend of spectrometers. Some groundwork for the scientific research is offered by introducing micro-spectrometers development.展开更多
A new scheme is proposed to model 3D angular motion of a revolving regular object with miniature, low-cost micro electro mechanical systems(MEMS) accelerometers(instead of gyroscope),which is employed in 3D mouse syst...A new scheme is proposed to model 3D angular motion of a revolving regular object with miniature, low-cost micro electro mechanical systems(MEMS) accelerometers(instead of gyroscope),which is employed in 3D mouse system.To sense 3D angular motion,the static property of MEMS accelerometer,sensitive to gravity acceleration,is exploited.With the three outputs of configured accelerometers,the proposed model is implemented to get the rotary motion of the rigid object.In order to validate the effectiveness of the proposed model,an input device is developed with the configuration of the scheme.Experimental results show that a simulated 3D cube can accurately track the rotation of the input device.The result indicates the feasibility and effectiveness of the proposed model in the 3D mouse system.展开更多
文摘Spectrometer is an essential and necessary optical element used for measuring the chemical components and content of the matter. The development of miniature spectrometers can be traced back to 1980s. The development state and different manufacturing methods of micro-spectrometers are presented. Finally, we analyze the miniaturization trend of spectrometers. Some groundwork for the scientific research is offered by introducing micro-spectrometers development.
文摘A new scheme is proposed to model 3D angular motion of a revolving regular object with miniature, low-cost micro electro mechanical systems(MEMS) accelerometers(instead of gyroscope),which is employed in 3D mouse system.To sense 3D angular motion,the static property of MEMS accelerometer,sensitive to gravity acceleration,is exploited.With the three outputs of configured accelerometers,the proposed model is implemented to get the rotary motion of the rigid object.In order to validate the effectiveness of the proposed model,an input device is developed with the configuration of the scheme.Experimental results show that a simulated 3D cube can accurately track the rotation of the input device.The result indicates the feasibility and effectiveness of the proposed model in the 3D mouse system.