113results about How to "High signal sensitivity" patented technology

A system and method autonomously and precisely track objects moving along a known course. The objects include, for example, racing horses, other racing animals, or racing vehicles. The system and method utilize modern satellite navigation satellite systems, signal processing, radio communications systems and computer processing to acquire and analyze performance data of the moving objects during competitions and during training and practice. The data acquisition is performed continuously at a rate of at least 1 Hz during the competition, training or practice even in the presence of objects which affect the quality of the signals received from the satellite system.

A thermal infrared sensor is provided in a housing with optics and a chip with thermoelements on a membrane. The membrane spans a frame-shaped support body that is a good heat conductor, and the support body has vertical or approximately vertical walls. The object is to provide a thermopile infrared sensor in monolithic silicon micromachining technology, wherein the infrared sensor has a high thermal resolution capacity with a small chip size, a high degree of filling and a high response rate. The thermopile sensor structure consists of a few long thermoelements per sensor cell. The thermoelements being arranged on connecting webs that connect together hot contacts on an absorber layer to cold contacts of the thermoelements. The membrane is suspended by one or more connecting webs and has, on both sides of the long thermoelements, narrow slits that separate the connecting webs from both the central region and also the support body. At least the central region is covered by the absorber layer.

A pulse running time filling level sensor includes a sampling device for sampling an IF signal at discrete instants and for converting the sampling values into digital sampling values, and a digital signal processing device for subsequent processing of the digital sampling values by calculating at least one new value characterizing the IF curve from respectively exactly two digital sampling values.

The present invention relates to an electrochemical biosensor for detecting hydrogen peroxide, a preparation method and an application thereof. The preparation method comprises the steps of (1) synthesizing the silica-three-dimensional graphene composite material; (2) doping nitrogen and carbon into the synthesized silica-three-dimensional graphene composite material; (3) pretreating a glassy carbon electrode; (4) preparing the glassy carbon electrode modified by the nitrogen-carbon-doped silica-three-dimensional graphene composite material through the dispensing method; (5) putting the glassy carbon electrode into a chloroauric acid solution to prepare gold nanoparticle-nitrogen-carbon-doped silica-three-dimensional graphene glassy carbon electrode through chronoamperometry; (6) dipping the glassy carbon electrode into a double-sulfhydryl-modified GDNA solution and cultivating for 2-4 hours; (7) dipping the composite electrode into a hemin solution for 10-14 hours. The electrochemical biosensor is good in stability and reproducibility, high in specificity and sensitivity, fast and simple and convenient to operate. The electrochemical biosensor can be used for detecting the content of hydrogen peroxide in biological samples, cosmetics and the like.

Apparatus and methods of fabrication and use of highly effective laser-induced graphene (LIG) electrodes including for electrochemical sensing and catalysis. One example is a sensitive and label-free laser-induced graphene (LIG) electrode functionalized for a specific application. One example of functionalization with antibodies, an enzyme, or an ionophore to electrochemically quantify a target species The LIG electrodes were produced by laser induction on film having a carbon precursor (e.g. polyimide) in ambient conditions, and hence circumvent the need for high-temperature, vacuum environment, and metal seed catalysts commonly associated with graphene-based electrodes fabricated via chemical vapor deposition processes. These results demonstrate how LIG-based electrodes can be used for electrochemical sensing in general. Other examples of applications include, but are not limited to, ion-sensing, pesticide monitoring and detection, and water splitting, using the LIG-based electrode(s) adapted for those purposes.

A display device can include a display panel touch block groups, each including touch sensors, each touch sensor corresponds to one or more pixels defined by data lines and gate lines; a data driver that generates and supplies a modulated source signal for display data to a data line; a gate driver that generates a modulated scan-on signal for writing the modulated source signal to a pixel and supplies the modulated scan-on signal to the gate lines; and a touch sensor driver that supplies a touch driving signal to touch wires connected to corresponding touch sensors in each of the touch block groups, and selectively senses for touch on a touch block group, except for a restricted touch block group overlapping a gate line that is supplied with the modulated scan-on signal, in which the modulated source signal or the modulated scan-on signal is synchronized with the touch driving signal.

A sunlight tracking sensor for providing a control signal via amplifier to a sunlight tracking motor is composed of a sunlight attenuating plate, a small box with central bulkhead, and 4 linear photosensitive elements divided into two groups. Two elements in one group are respectively arranged at both sides of central bulkhead in said small box and serially connected. Two signal output lines are led out from the middle points of two serial connections. Two groups are parallelly connected to power supply. Its working principle is also disclosed.

A metal detection apparatus that uses one or more operating frequencies. The metal detection apparatus comprises, among other things, a transmitter unit that provides transmitter signals to a transmitter coil that is coupled to a receiver coil, which is connected to the input of a receiver unit. The transmitter unit comprises a frequency generator that provides an operating frequency to the input of an amplifier stage, whose output is connected via a transformer to the transmitter coil. The amplifier stage is connected to a first tap and the transmitter coil is connected to a second tap of the same transformer winding of the transformer. A resonant circuit is formed that is tuned to the operating frequency, and can be tuned optimally and independently of other parts of the transmitter unit.

A method of preparing a hydrogen-containing ¹³C compound test sample exhibiting an enhanced ¹³C nuclear magnetic resonance (NMR) signal when exposed to a ¹³C NMR pulse sequence is disclosed. In the disclosed method, the hydrogen-containing ¹³C compound is mixed with hyperpolarized ¹²⁹Xe in the gaseous state, and the mixture is subsequently frozen within a magnetic field. The magnetic field strength is then reduced sufficiently so that spin polarization is transferred from the hyperpolarized ¹²⁹Xe to the compound. The magnetic field strength is then increased, and the mixture is thawed to obtain the test sample.

A reconfigurable multi-output antenna (16) is disclosed comprising: one or more radiating elements (12, 14), at least two matching circuits (42, 44, 50, 52) coupled to the or each radiating element (12, 14) via e.g. a splitter (30, 32) or a diplxer; and wherein each matching circuit (42, 44, 50, 52) is associated with a separate port (38, 40, 46, 48) arranged to drive a separate resonant frequency so that the or each radiating element (12, 14) is operable to provide multiple outputs simultaneously. The resonant frequency of each output is independently controllable by each matching circuit, with good isolation with each other port, thereby offering very wide operating frequency range with simultaneous multi-independent output operations. Also described is a multi-output antenna control module for coupling to one or more radiating elements, an antenna structure and an antenna interface module. A reconfigurable multi-output antenna is disclosed comprising: one or more radiating

The invention discloses a method and a system for monitoring and analyzing air. The method comprises the following steps: collecting gas at the site, and carrying out pressurization on the on-site gas, wherein, the pressure applied on the on-site gas is equal to or less than a preset pressure threshold; heating up the pressurized gas to a preset temperature threshold; detecting the heated gas by using a sensor group to obtain parameters of various gasses in the heat gas and generate multi-channel detection signals of the parameters of the various gasses; analyzing the multi-channel detection signals to obtain the gas status of the on-site gas. The invention further discloses a system for monitoring and analyzing air. According to the invention, signal stability and resolution are effectively raised, the lowest checked out thresholds of the whole system is reduced by an order of magnitude, and the technical requirements of air quality monitoring are completely satisfied.

A method of forming an embedded read element is used in the fabrication process of a magnetic head assembly including write and read heads. In this method, three photolithographic patterning steps are applied for defining the designed height of the embedded read element, defining its designed width, and connecting it with conducting layers, respectively. An in-line lapping guide is also formed with a spacing in front of the embedded read element. In this method, two mechanical lapping steps are applied, one monitored by measuring the resistance of a parallel circuit of the embedded read element and the in-line lapping guide, and the other monitored by measuring the GMR response of the embedded read element.

The present invention provides a method for electronic measurement. According to the invention, the sensitivity of a method for electronic measurement may be improved, carried out by the principle of heterodyne reception with the steps of broadcast of pulsed electromagnetic radiation (ES) with at least one pulse repetition frequency, reception of back-scattered radiation (RS), whereby the back-scattered radiation (RS) is converted into a received signal, mixing of the received signals, determination of at least one time parameter from the at least one output signal, whereby on mixing the received signals at least two pulsed mixed signals are mixed to give at least two output signals and the at least two mixed signals are phase-shifted relative to each other.