50results about How to "Improve diagnostic reliability" patented technology

A diagnostic system, for a valve (2), having a sensor (12) that senses structure-borne noise and having a device (14) for evaluating a measurement signal (13) of the structure-borne noise. During a calibration process, a first progression of the measurement signal is sensed for the closed position of the valve (2) and a first value (w1) of a characteristic is determined. To simulate leakage noise, the valve (2) is nearly closed during operation, a second progression of the measurement signal is sensed and a second value (w2) is determined. If the deviation of the second value from the first value is sufficiently large, a diagnosis is possible. A third progression of the measurement signal is sensed for the closed position of the valve as in an installed condition, and a third value (w3) is determined. If the deviation of the third value (w3) from the first value (w1) is too great, and if a diagnosis has been identified as being possible, then the system deduces that the valve leaks.

A method and device for optically stimulating the visual system during static perimetry and for objectively evaluating adequate stimulus-related electrophysiological and / or magnetophysiological quantities. Light stimuli with defined parameters derived from a predetermined correlation function and from the known intensity dependence of the excitation response amplitude are presented to the observer. The excitation responses contained in the ERG and / or in the EEG / MEG are detected and processed. These excitation responses are used to determine and topographically evaluate the local sensitivity of the visual system. In one embodiment, the light sources are fixed inside a perimeter, and the excitation responses are amplified and digitized by a device, which preferably comprises an ERG / EEG measuring system and an A / D converter. To this end, the device, for the purpose of evaluating, and the light sources, for the purpose of controlling, are connected to a controlling means, preferably to a PC provided with evaluation and control software.

A solid reagent dissolving device including a flexible layer; an upper plate disposed on the flexible layer; and a lower plate disposed under the flexible layer, wherein the upper plate comprises a plurality of minute channels, a dissolution chamber connected with the plurality of minute channels, and a protrusion for limiting a flow of a fluid flowing through one of the plurality of minute channels, the lower plate comprises a plurality of penetration holes that correspond to the protrusion and the dissolution chamber, respectively, and one side of each of the plurality of penetration holes, the plurality of minute channels, and the dissolution chamber are covered with the flexible layer, and method of using same.

In a diagnostic method for at least one ball bearing, in particular for an angular-contact ball bearing for bearing a rapidly rotating spindle, mechanical vibration caused by the respective angular-contact ball bearing is acquired by at least one vibration sensor and outputted as a corresponding vibration signal. At least one bearing characteristic, fundamental kinematic frequency dependent on a current bearing rotational frequency is determined by computation. A corresponding bearing frequency in a measurement frequency spectrum of the respective vibration signal is determined by measurement. A first diagnostic message is output when at least one of the determined bearing frequencies deviates by a respective prescribed frequency deviation from the corresponding computational fundamental kinematic frequency.

Provided is a polypeptide comprising a macadamia protein running in a 2D SDS PAGE at pH 6.3 to 8.7 and 53 to 67 kDa or a protein running in a 2D SDS PAGE at pH 6.5 to 7.9 and 20 to 25 kDa or an antigenic variant thereof, and a tag for detection and / or purification, a polypeptide fused with the macadamia protein, or the macadamia protein is modified by glycosylation, phosphorylation, acetylation, decarboxylation, citrullination, or hydroxylation.

A method for diagnosing a limbic encephalitis, PNS, encephaloymyelitis, leukoencephalopathy, retinitis or optic atrophy, includes detecting a bornavirus in a sample, preferably from the group comprising mammalian 2 bornavirus, even more preferably VSBV-1, and mammalian 1 bornavirus, even more preferably BoDV-1; to a carrier containing a means for the capture of an antibody against at least one polypeptide selected from the group of BoDV-1-N, BoDV-1-P, VSBV-N and VSBV-P. A kit contains the carrier and a means for the detection of a captured antibody and a control for the detection of the presence of a sample. The carrier or kit or of a primer can be used for the detection of a bornavirus or a probe can be used for the diagnosis of an encephalitis, for the prognostication of post-transplantation complications, for the monitoring of a therapy of an encephalitis or of post-transplantation complications or for the differentiation between an autoimmune encephalitis and an encephalitis caused by infection.

The invention relates to a motor rotor classical failure diagnosis method based on low subharmonic shaft voltage signals, which is used for solving the detection problem of turn-to-turn short circuit failure of a motor rotor static eccentricity and a winding. The technical scheme is achieved as follows: respectively connecting two ends of a slide rheostat to two ends of a motor rotor; acquiring shaft voltage partial signals output by the slide rheostat in an on-line way by using a data acquisition device; carrying rapid Fourier transform on the signals to obtain a shaft voltage frequency spectrum plot; and analyzing the frequency spectrum of the shaft voltage signals, diagnosing whether the turn-to-turn short circuit failure exists in the motor rotor winding or not: if the frequency component amplitude of j Omega r / 2Pi in the shaft voltage signals exceeds 15 percent of the normal value, judging the turn-to-turn short circuit failure exists in the motor rotor winding, wherein Omega r is the mechanical angular velocity of the motor. The invention has high diagnosis reliability, simple operation and low cost, is suitable for a non-salient pole sychronous motor and a salient pole synchronous motor, and can conveniently perform the test whatever the motor is big, small, new or old.

The invention discloses a road traffic signal light fault diagnosis device comprising a detector fault diagnosis module, a signal light fault diagnosis module, a power supply system diagnosis module, a wireless communication module, a sound and light alarm module, and a human-machine interaction module. The modules are independent from each other. The software and hardware modules of the device are effectively separated. In timing plan analysis diagnosis, the device uses a detector for information analysis, fully considers the actual status of an intersection, and improves the reliability of diagnosis. The device realizes remote diagnosis, so that a technician can modify configuration and parameters of the device through a remote 4G wireless network and do analysis and processing of data through a wireless network without being on site.

The invention discloses a method for diagnosing the health state of a liquid reductant supply pump, which includes the following steps: S101. Calculating the standard control parameter threshold for determining the healthy state according to the power supply voltage of the supply pump when the calculation condition is satisfied; S102. The working state of the supply pump meets the design requirements. Calculate the control parameters that can characterize its actual health state when the conditions are determined; S103. Determine the actual health of the supply pump according to the deviation between the actual health state control parameters of the supply pump calculated in step S102 and the standard control parameter threshold value calculated in step S101. Status; S104. Determine the cause of the failure according to the actual health status of the supply pump calculated in step S103 and the deviation of the health control parameters, and report to the supply pump control unit. The invention can monitor the health state of the reductant supply pump in real time, and the diagnosis is reliable without adding extra cost.

The invention discloses a method and a system for diagnosing the performance deterioration of a gasoline vehicle particulate trap, belonging to the technical field of engine particulate traps. The method for diagnosing the performance degradation of the particle filter of gasoline vehicles provided by the embodiment of the present invention includes the following steps: obtaining the voltage values ​​at the upstream and downstream ends of the particle filter; converting the voltage values ​​at the upstream and downstream ends of the particle filter into a differential pressure value ; Comparing the converted pressure difference value with the preset pressure difference value threshold, and when the pressure difference value does not reach the preset pressure difference value threshold, it is determined that the performance of the particle filter is degraded. The method for diagnosing the particulate filter of gasoline vehicles provided by the embodiment of the present invention can be easily realized only by measuring the voltage values ​​at both ends of the upstream and downstream of the particulate filter and developing corresponding logic software. It does not involve actuators and is easy to arrange. Low cost, high diagnostic reliability, and less calibration workload.

Disclosed is an automatic in-vitro diagnosis method for increasing diagnostic reliability and a diagnosis speed by automatically mixing a specimen taken from the body of a person with a reagent in volumes needed to diagnose the state of the person using the specimen, absorbing the mixture solution of the reagent and the specimen with an analysis strip for a predetermined time, and making a diagnosis by analysis.