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 discloses a bionic hair-type silicon micro-gyroscope for angular velocity sensing. The bionic hair-type silicon micro-gyroscope is composed of upper polymer hair, a middle silicon micro-sensor and a bottom glass substrate equipped with a circuit, wherein the middle silicon micro-sensor comprises a circular mass block and an annular mass block with a same circle center as the circular mass block; two torsion beams are arranged between the circular mass block and the annular mass block; the upper polymer hair is adhered onto the center of the circular mass block; and the circumferential lateral part of the annular mass block are uniformly provided with a plurality of comb groups and square wave supporting beams which are arranged in a staggered way. The bionic hair-type silicon micro-gyroscope is novel in structure, has high sensitivity and is compatible with conventional planar process; and compared with a simple conventional planar structure, the arrangement of the upper polymer hair is favorable for enlarging the Coriolis effect and improving structure sensitivity.

The invention discloses a touch display device and a touch position detection method and a touch position detection system thereof. The display device is used for displaying a static image; each pixel array of the display device comprises a plurality of pixel matrix units; and each pixel matrix unit comprises a plurality of pixels arranged in a matrix mode. The method comprises the following steps of: according to a scanning manner of a scanning line, carrying out time-sharing measurement on a current on a data line connected with each pixel in each pixel matrix unit and carrying out integration to obtain a total charging charge quantity Q of each pixel matrix unit; comparing the total charging charge quantity Q of each pixel matrix unit, which is obtained by the time-sharing measurement, with a prestored total charging charge quantity Q' of the pixel matrix unit when the touch operation is not carried out on the pixel matrix unit and if an absolute value of (Q/Q')-1 is greater than a preset threshold value P, judging that the touch action is generated at the position of the corresponding pixel matrix unit. Compared with the prior art, a pattern of a touch panel does not need to be separately made, so that cost is saved and process complexity is reduced.

The invention provides a sensing unit, a touch screen detector and a touch device. The touch device comprises a substrate, a plurality of non-crossing sensing units and a detection module. The sensing units are formed on the substrate. Each sensing unit is provided with first electrodes and second electrodes opposite to each other and comprises a plurality of first structures and a plurality of second structures, and the first structures are connected end to end through the second structures. By the use of the sensing unit, the touch screen and the touch device, signal-to-noise ratio of a circuit can be increased effectively, circuit noise can be lowered, and sensing linearity can be 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 the sample 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 programmable panchromatic 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 genetic engineering biological indicator used for biological monitoring of one or more sterilization effects. According to the genetic engineering biological indicator, foreign genes, including promoters, reporter genes and selectable maker genes, are guided into indicator microorganisms by means of genetic engineering. The selectable maker genes are positioned on the upstream of the inducible promoters, and the reporter genes are positioned on the downstream of the inducible promoters. In the absence of inducers, the selectable maker genes are expressed, the reporter genes are not expressed, and accordingly, successfully-transfected strains are screened. After exposure by sterilization factors, the indicator microorganisms contact with the inducers, and the reporter genes are expressed. Autofluorescence of the genetic engineering biological indicator can be achieved without specific enzyme substrates, and the genetic engineering biological indicator has the advantages of high signal-to-noise ratio, strong fluorescence signal, easiness in detection, high sensitivity and the like.

The invention provides a touch detection method, a touch screen detector and a touch device. The touch device comprises a substrate, a plurality of non-crossing sensing units and a detection module, wherein the sensing units are formed on the substrate. Each sensing unit is provided with first electrodes and second electrodes opposite to each other. By the use of the touch detection method, the touch screen detector and the touch device, signal-to-noise ratio of a circuit can be increased effectively, circuit noise can be lowered, and sensing linearity can be improved.

The invention provides a touch detection method and a touch control device. The touch detection method includes applying high-level signals on a first electrode of one of sensing units, earthing a second electrode so as to charge for the first time; applying high-level signals high-level signals to the first electrode and the second electrode so as to charge for the second time; detecting from the first electrode and the second electrode correspondingly so as to obtain a first detection change value between the first charging time and the second charging time, and discharging self-capacitance for the first time; applying high-level signals on the first electrode, earthing the second electrode so as to charge for the third time; earthing the first electrode and the second electrode so as to discharge for the second time; detecting from the first electrode and the second electrode correspondingly so as to obtain a second detection change value between the third charging time and the second discharging time; and computing a touch position according to the first detection change value and the second detection change value.

The invention discloses a novel genetic engineering biological indicator. A foreign gene comprising a constitutive promoter, a reporter gene and a selectable maker gene is imported into an indicator microorganism through a gene engineering technique means, both the reporter gene and the selectable maker gene are located at the downstream of the constitutive promoter and are regulated and controlled by the upstream constitutive promoter, the selectable maker gene is used for screening a strain being successfully transfected, the reporter gene is used for indicating the growth of the microorganism after sterilization and exposure, and when the strain grows, the constitutive promoter is activated to promote the expression of the reporter gene and the selectable maker gene; according to the novel genetic engineering biological indicator provided by the invention, the constitutive promoter activated in the earlier stage of spore recovery growth is used for starting the expression of the foreign gene, remaining living spores can be quickly detected at the earlier stage of spore recovery growth, and the indicator is suitable for detection on the organism with one or more sterilization efficacies. The indicator provided by the invention has no need of any inductors or specific enzyme substrates, has a simple foreign gene system, is easy to operate and high in sensitivity and has a good industrial application prospect.

The invention belongs to the technical field of laser ranging, and particularly relates to a signal detection method and system capable of improving the laser radar detection distance and precision. According to the method, a photon counting technology and a weak signal detection technology are combined, and aperiodic multi-pulse averaging and autocorrelation detection are included; and the specific process is as follows: after a reflected light signal reaches a laser radar, stray light is filtered by a narrow-band optical filter, and then photon counting amplification is carried out by adopting a photon counting technology; non-periodic multi-pulse averaging is performed, namely multi-pulse cumulative averaging is performed according to a pulse period; and a pulse autocorrelation detection method is adopted to measure the time interval between the start pulse and the end pulse. The system comprises a pulse laser, a photon counter, a multi-time averaging module, an autocorrelation detector and the like. The multi-time averaging module is used for non-periodic multi-pulse averaging calculation, and the autocorrelation detector is used for autocorrelation operation to obtain a termination pulse signal. According to the invention, long-distance and high-precision target detection can be realized.

The invention provides a touch detection method and a touch device. The method includes: applying high level signals to a first electrode of one of a plurality of sensing units, and enabling a second electrode to be grounded so as to perform first charging; applying high level signals to the first electrode and the second electrode so as to perform second charging; detecting the first electrode or the second electrode correspondingly to obtain a first detection change value between the first charging and the second charging; enabling the first electrode and the second electrode to be grounded so as to perform first discharging; detecting the first electrode or the second electrode correspondingly to obtain a second detection change value between the second charging and the first discharging; and computing a touch position according to the first detection change value and the second detection change value.

A food safety monitor based on a spacial light modulator comprises a light source, a sample pool, a detecting part, a dispersive element, an image forming device, a programmable spacial light modulator and a single detector. The sample pool is arranged between the light source and the dispersive element. The light emitting from the light source passes through the sample pool and the detecting part and emits to the dispersive element. The light diffraction route of the dispersive element is provided with the image forming device and the programmable spacial light modulator. A focal plane of the image forming device is also provided with a single detector which obtains the light intensities of various wavelengths or the synthetic light intensity of a plurality of wavelength lights in sequence according to the time sequence, and the monitoring to the sample spectrum is realized with a digital transforming method. The dispersive element of the device adopts a commercial optical disc. The programmable spacial light modulator is a spacial light modulator array based on the MOMES technique. The photoelectric detecting part is only a single detector. The invention has the advantages of low cost, small volume, quick response speed, convenient transportation and the like.

The invention belongs to the technical field of super-resolution location fluorescence imaging and relates to an axial single-molecule high-accuracy fluorescence location method device and a use method thereof. According to the axial single-molecule high-accuracy fluorescence location method device disclosed by the invention, the high-accuracy characteristic of single-molecule location is combined, the characteristic that the slope of a single-molecule axial gauss light intensity distribution response curve is the maximum at the focal point position is utilized, and single-molecule axial accurate location is achieved; thus, super-resolution fluorescence imaging is achieved. The axial single-molecule high-accuracy fluorescence location method device disclosed by the invention comprises a laser A, a laser B, an objective lens, a three-dimensional sample displacement bench, an axial location system and the like, wherein the laser A and the laser B are used for stimulating and activating fluorescence molecules; the axial location system is composed of a beam splitter prism, a lens and an EMCCD; after fluorescence enters the axial location system, the fluorescence can be imaged at the EMCCD position after passing through the lens; the EMCCD position is symmetrical relative to the focus point.