97 results about "Direct measure" patented technology

The invention describes the first practical, cost effective, truly non-contact implementation of a subcutaneous vein pattern biometric sensor. A laser diode (LD) illuminates the hand in such a way that the pattern of reflected radiation, when viewed by a conventional vein pattern infrared imager, provides a direct measure of target range. Said target range measurement is used to create a visual or audio signal that instructs the individual being scanned to place the hand at precisely the optimum range, such that the vein pattern is in focus. Furthermore, a system and apparatus are described to direct the individual being scanned to move the hand to an optimal horizontal registration or position with respect to the infrared imager.

A method of operating a hearing instrument for processing an input sound and to provide an output stimulus according to a user's particular needs, and related system, computer readable medium and data processing system. An object is to provide an improved customization of a hearing instrument. The method includes the steps a) providing an estimate of the present cognitive load of the user; b) providing processing of an input signal originating from the input sound according to a user's particular needs; and c) adapting the processing in dependence of the estimate the present cognitive load of the user. The estimate of the present cognitive load of a user is produced by in-situ direct measures of cognitive load (e.g. based on EEG-measurements, body temperature, etc.) or by an on-line cognitive model in the hearing aid system whose parameters have been preferably adjusted to fit to the individual user.

Neural Network Loadflow (NNL) computation method is invented involving input vector composed of net nodal injection of real and reactive powers and diagonal elements of conductance and susceptance matrices multiplied by the squared voltage magnitude components of the flat-start normally used as initial solution estimate guess for loadflow solution by conventional NRL or SSDL methods. Training, and testing/validating input-output data sets are generated by applying uniform and non-uniform scaling factors applied to base case loads at PQ-nodes, resistance and reactance of transmission line branches. These scale factors are increased until loadflow solution by conventional methods such as Newton-Raphson Loadflow and Super Super Decoupled Loadflow methods diverge. Divergence of loadflow methods are due to node voltage, node angle, and numerical instabilities. Voltage magnitude and phase angle values in the solution before divergence are respective stability limits and voltage magnitude and phase angle values in loadflow solution provide direct measure to the respective stability margins. Also Suresh's diakoptiks based feature selection technique is presented for ANNs calculating one node variable with one neuron each in their output layers.

A multi-media method and system performs psychological assessment of an individual for suitability for particular jobs, whereby the individual is shown and provided with discrete visual and auditory stimuli on a multi-media computer screen, so that the individual's responses can be monitored in conjunction with physiological responses received by biofeedback sensors. The computer tallies the test subject's recorded responses. Virtual work environments are optionally displayed, to enable the tested individual to simulate a real work environment. Unlike other job evaluation systems, the system evaluates a job candidate's ability to maintain task focus under pressure. It directly measures performance under pressure, rather than only inferring potential performance based upon selective input from a job candidate.

A narrowband signal detector has an adaptable filter and controller for controlling the centre frequency and the bandwidth of the filter, to track the narrowband signal. Better control of the filter can be achieved by basing the filter control on a comparison of output and input to the filter. The comparison gives a more direct measure of how well the filter is tracking the narrowband signal. In the case of a notch filter, if there is poor tracking. The control should be biased rapidly towards improved tracking speed. Otherwise, for good tracking, the control should be biased towards accuracy of tracking. This enables speed and accuracy of detection requirements to be met with less computational load. Applications include telecommunications signalling or data tone detection. Multiple narrowband signals can be detected by a cascade of filters.

Described is a layout system and process for user interface elements of computer programs. The layout system generally refers to a protocol and associated API that enables sizes and positions to be allotted, in which user interface elements are rendered. The layout system may be split between a core layout system and a framework layout system. The core provides minimal policy/rules that are imposed to allow flexibility for a given framework implementation. The framework adds support for user-specified sizing, positioning, margins, minimum sizes, maximum sizes and specific layout elements. Parent elements (e.g., containers) direct measure calls and arrange calls to child elements. The layout system essentially intercepts those calls and depending on policy may manipulate the properties of those calls for sizing, positioning, alignment and the like to ensure uniform and consistent layout results.

The degree of accuracy a machine tool or the like is moved along a given path is determined by a unique preferably laser beam directing measuring system directing simultaneously or in sequence a laser beam parallel to the orthogonal axes of the two or three dimensional space in which the spindle or other object is to be moved in a path which can diverge appreciably in directions other than the directions of these axes. The beam directing means includes means which provides a measure of the actual positions the object has at various sampling times relative to the axis along which the beam is directed. This actual path position data is compared to the desired path position data used to program the object moving machine to determine the path position error at the sampling times involved.

A system and method for monitoring tool wear in CNC machining operations by monitoring spindle power and extracting instantaneous cutting geometry. The method is based on a physics-based two parameter process model and measuring at two different cutting conditions. The process model parameters are measured with easily accessible spindle power. In contrast to spindle power alone which is influenced by many factors, most especially by variable cutting conditions and by the tool condition, the process model parameters are independent of the geometrically variable cutting conditions and provide a simple and direct measure of tool wear. The two process model parameters change differently depending on the mechanism of the tool wear, specifically flank wear versus cutting edge degradation. This provides a diagnostic for tool wear.

The invention discloses a method for quantitatively evaluating a value of a security level DCS (Data Communication System) application software defect for a nuclear power plant, which comprises the following steps of: 1, analyzing a defect X according to a used system, and obtaining a use frequency F and a number r of redundancy functions of a function on which the defect X is located and the failure rate P(i) of each redundancy function; 2, utilizing a structure of actually used software to obtain logical branch probability PL through recognition of fault logic; 3, utilizing P(X)=F*PL*Pi<i=1><r> (1) to obtain probability P(X) of fault caused by the defect X; and 4, taking the step (1) into W=P(X)*E(2) to obtain a value W of the defect X. The method disclosed by the invention provides a significant reference for directly judging the contribution of nuclear power plant security level DCS application software V&V (Verification & Validation) personnel or software testers to a project, design quality of designers and the like.

An electronic surface tunneling acoustic detector or microphone with very high sensitivity is disclosed. A tunneling tip is mounted on a rigid perforated suspension plate, along with control electrodes, which are used to move a conductive membrane suspended above the suspension plate into closer or farther proximity with the tunneling tip. An electrical potential between the control electrodes and membrane, causing the membrane to bend towards the electrodes, and hence the tip, due to electrostatic attraction. As the membrane is pulled toward the tunneling tip, at some point a tunneling current begins to flow in the tunneling tip. The control voltage is subsequently adjusted to achieve a steady-state tunneling current in the tip. As the membrane responds to differential acoustic pressure variations, it moves and therefore upsets the steady state tunneling current. In a feedback loop instantly and constantly adjusts the control voltage to return the membrane to the steady-state condition. As a result, the adjustment of the control voltage is a direct measure of any sound pressure incident upon the membrane.

The invention describes the first practical, cost effective, truly non-contact implementation of a subcutaneous vein pattern biometric sensor. A laser diode (LD) illuminates the hand in such a way that the pattern of reflected radiation, when viewed by a conventional vein pattern infrared imager, provides a direct measure of target range. Said target range measurement is used to create a visual or audio signal that instructs the individual being scanned to place the hand at precisely the optimum range, such that the vein pattern is in focus. Furthermore, a system and apparatus are described to direct the individual being scanned to move the hand to an optimal horizontal registration or position with respect to the infrared imager.

The invention discloses a device and method for detecting the airtightness of a transformer respirator. The device comprises a supporting unit, a measuring unit and a processing unit which are adaptive to a respirator body. The supporting unit comprises a main supporting frame and an auxiliary connecting device. The measuring unit comprises a direct measuring unit and an indirect measuring unit which are distributed on the main supporting frame and the respirator body. The processing unit comprises a receiving unit and a processor and is in wireless connection with the measuring unit. The auxiliary connecting device comprises a measuring connecting frame and a measuring flange plate which are both connected with the respirator body. According to the device, the airtightness detecting fixed value of the respirator is set, under fixed pressure, the parameter information such as the temperature, the humidity, the pressure, the weight and the liquid level of the respirator is measured, airtightness detection is conducted through comparison and judgment, the real breathing normal working state of the respirator can also be simulated, a detection simulation purpose is achieved, and the airtightness detection problem before connecting power equipment is put into operation and in the maintenance process is completely solved.

A system for testing aerodynamic characteristics of a movable train on the basis of a wind pressure integral comprises a simulator (1), a wind pressure measuring point (2) and a testing device (3), wherein the simulator (1) is used for simulating the movable train; the wind pressure measuring point (2) is arranged on the simulator (1); the testing device (3) is used for acquiring aerodynamic characteristic information from the simulator (1); and the simulator (1) and the testing device (3) are mutually connected through wireless transmitting and receiving modules (4) arranged inside the simulator (1) and the testing device (3) respectively. The air pressure can be directed measured by the aid of the testing system, so that interference of the external force to an aerodynamic test result can be effectively avoided, the accuracy of the test result is guaranteed, and an technical assurance can be provided for experimental researches on the aerodynamic performance of a high-speed railway 'wind-train-bridge' system.

The invention discloses a quasi morphological filtering method for extracting a two-dimensional contour in contact measuring head measurement and belongs to the field of precision measurement technology and instrument technology. According to the quasi morphological filtering method for extracting the two-dimensional contour in contact measuring head measurement, the envelope lines of measuring head contour lines of the positions corresponding to all direct measured data points serve as a final two-dimensional contour measurement result. According to the method, in the two-dimensional contour extracting process, the normal direction in the contact point position does not need to be estimated, and therefore the method is particularly applicable to the situation that in precise measurement, the curvature change of a measured contour is large and even the measured contour is unsmooth.

A method and system for analyzing deficiencies in a packet-switched network is described. In one example, network measurement data pertaining to components within a packet-switched network are obtained. Reliability estimates of access networks and associated access links coupled to the packet-switch network are conducted. Lastly, an end-to-end direct measure of quality (DMOQ) is calculated from the network measurement data and network estimation data derived from the reliability estimates.

An instrument (1) and a method for detecting partial electric discharges involve acquiring a discharge signal (10), for example picked up by a direct-measuring impedance device (7) through a broadband HF acquisition channel (18), and acquiring the discharge signal (10) in a narrowband LF acquisition channel (180) complying with regulations, using on the LF acquisition channel (180) a trigger controlled in slave mode by a trigger of the broad-band HF acquisition channel (18); they also involve acquiring another discharge signal (32) picked up by an indirect-measuring impedance device (8) through a second narrowband LF acquisition channel (180A) and comparing digital signals (34, 34A) generated in the first and second LF acquisition channels (180, 180A), in order to generate a balanced digital signal (36) without components represenative of common mode electrical signals present in the measuring circuit.

The invention discloses a liquid control reversing buffer device and method. The device includes position detection device which used in detecting piston moving location of liquid control reversing system and produce position signal. Controller is used in receiving position signal and accord to the signal to regulate oil pump displacement of liquid control reversing system, and then realize the buffer to piston reversing. The device can direct measure position of piston, then improve signal detection precision and dynamic responsiveness, and make liquid control reversing system stable.

An electromagnetic force-compensation direct-measuring system is disclosed. Referred to as direct-measuring system, it comprises a parallel-guiding mechanism; and a load receiver connected with the parallel-guiding mechanism and connected to a force-compensation device by a force-transmitting rod. The force-compensation device can include at least one permanent magnet and a coil that is electrically connected to a control circuit. At least one component of the parallel-guiding mechanism is configured to transmit electric signals.