61results about How to "Improve sex-to-noise ratio" patented technology

The invention discloses a touch panel, which comprises a metallic bridge, a first insulating layer, a touch electrode layer, a second insulating layer, a flat layer and a cover plate layer which are sequentially formed on a substrate base plate. The edge of the touch panel is provided with peripheral wires which are positioned in the same layer with the metallic bridge, and a protective electrode layer covering the peripheral wires is formed between the second insulating layer and the flat layer. The invention also discloses a touch display device of the touch panel. The touch panel is provided with the protective electrode layer, so that noises caused by touching the edge of the touch panel are reduced, the signal-to-noise ratio of the touch panel is increased, and the performance of the touch panel is enhanced.

The invention provides a friction nano-generator, which comprises a first power generation layer, a second power generation layer and a packaging layer, wherein the first power generation layer comprises a first substrate material layer, a first electrode layer arranged on a first surface of the first substrate material layer and a first polymer nanostructure layer arranged on a second surface ofthe first substrate material layer; the second power generation layer comprises a second substrate material layer, a second polymer nanostructure layer arranged on a first surface of the second substrate material layer and a second electrode layer arranged on the second polymer nanostructure layer, and the second electrode layer and the first polymer nanostructure layer are arranged in a face-to-face manner; and the packaging layer is used for packaging the first power generation layer and the second power generation layer. The invention further provides a micro-mechanics sensor based on the friction nano-generator and a sensing system comprising a plurality of micro-mechanics sensors. The micro-mechanics sensor provided by the invention can detect weak mechanical signals in a real time and high precision manner, and realizes wearable applications.

The invention provides a pulse Doppler hyperspectral resolution imaging processing method and processing system, the method comprising: acquiring IQ signals respectively corresponding to N sampling points on each scanning line, and Above, perform wall filter processing on it to form the IQ signal wall filter sequence corresponding to each scanning line; respectively perform FFT transformation on each sampling point in the IQ signal wall filter sequence in the slow time direction and fast time direction , to obtain the energy distribution matrix of each sampling point at different frequency shifts; obtain the velocity distribution matrix matching the energy distribution matrix; call the velocity sequence for display, query the velocity distribution matrix with the velocity sequence and an energy distribution matrix matched with the velocity distribution matrix to obtain an energy sequence corresponding to the velocity sequence for final spectrum display. In the present invention, when the transmission signal bandwidth is wide or the scatterer speed is fast, the velocity resolution is greatly guaranteed, and the velocity spectrum resolution is greatly improved.

The invention relates to a multi-grating programmable panchromatic spectrometer aiming at monitoring the safety of foodstuff, comprising a light source, a sample pool, a detection part, dispersing components, an imaging device, a programmable spatial light modulator area array and a plurality of detectors aiming at different wavebands, wherein, light emitted by the light source passes through thesample pool and is reflected to the dispersing components; the light with different wavelengths is reflected to the programmable spatial light modulator area array by various dispersing components with different parameters; the programmable spatial light modulator area array is modulated through exertion of slaving voltage, and then a plurality of subsequently arranged single detectors respectively obtain the optical intensity of various wavelengths or the synthetic optical intensity of light with a plurality of wavelengths in turn according to the time sequence; finally, monitoring of spectra is realized by utilization of the digital conversion method. The dispersing components of the instrument adopt gratings or commercial compact discs and so on; the programmable spatial light modulator area array is a spatial light modulator area array based on MOMES technology; photoelectric detecting parts are a plurality of detectors aiming at different wavebands. The multi-grating programmablepanchromatic spectrometer has the advantages of low cost, small volume, quick response speed, portable use, capability of realizing full spectrum detection and so on.

The invention discloses a preparation method for a silicon germanium (SiGe) monitoring chip. The preparation method comprises the following steps of: 1) at least designing a group of raster graphics; 2) defining the raster graphics designed by the step 1) on a substrate, and etching the substrate to form a raster graphics consisting of a plurality of regularly arranged trenches; 3) depositing a SiGe thin film with specific content on the substrate to form the SiGe thin film with the raster graphics; and 4) preserving a photoresist on middle parts at the bottoms of the trenches of the raster graphics of the SiGe thin film to form a photoresist raster graphics. The SiGe monitoring chip prepared by the method is highly sensitive to optical characteristic changes caused by lattice mismatching in pre-bake, and the changes of a pre-bake process can be accurately and conveniently monitored. The invention also discloses a monitoring method for the SiGe thin film.

A touch detecting method, a touch sensitive device, and a portable electronic apparatus are provided. The touch detecting method comprises: applying a high level signal to one of a first electrode and a second electrode of one induction unit, and grounding the other to charge a self capacitor for a first time; applying high level signals to the first electrode and the second electrode to charge the self capacitor for a second time; detecting from a corresponding first electrode or a corresponding second electrode of the one induction unit to obtain a first detecting variation; grounding the first electrode and the second electrode; detecting from the corresponding first electrode or the corresponding second electrode to obtain a second detecting variation; calculating a ratio between a first resistor and a second resistor; and determining a touch position according to the ratio between the first resistor and the second resistor.

The invention discloses an analogue-to-digital conversion circuit for a portable electric energy monitoring device. The analogue-to-digital conversion circuit comprises a field programmable gate array (FPGA) processing module, a clock driving circuit and eight converter modules. The FPGA processing module is connected with the clock driving circuit and the eight converter modules. The clock driving circuit is connected with the eight converter modules. The analogue-to-digital conversion circuit provided by the invention has a simple structure, is low cost and increases running speed. Six-channel integrated analogue-to-digital converter (ADC) chips are adopted, and 48 analogue-to-digital conversion channels are integrated in an acquisition board, so conversion accuracy is improved and the applicability of the device on the spot is also improved. The analogue-to-digital conversion circuit also has a high-efficiency core processing scheme by which real-time sampling control and data processing can be performed on the 48 analogue-to-digital conversion channels.