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70results about How to "Useful measurement" patented technology

Apparatus for measurement of blood analytes

There is described a device for the non-invasive measurement of one or more analytes in blood in a patient's body part which comprises a light transmitter comprising a plurality of transmitting fibres positioned to transmit light to the body part and a light detector comprising a plurality of light detector fibres position to detect light transmitted through or reflected from the body part. The device especially utilises the non-pulsatile element of a patient's blood. There is also described a method of measuring blood glucose levels and a device programmed so as to calculate one or more of the haemoglobin index, the oxygen index and the blood oxygen saturation.
Owner:WHITLAND RES

System and Method for Automated Testing of an Electric Cable Harness

Briefly, a method and system for testing a cable harness is disclosed. Generally, a cable harness is used to route many electric wires for power, communication, and control. The tester includes a switch system that enables one or more TDR engines to sequentially apply a TDR stimulus to substantially all the wire pairs in the cable harness, and to collect the resulting TDR waveforms. The waveforms are analyzed to determine if the cable harness meets quality standards. In some cases the tester may also perform a continuity, resistance, capacitance, or inductance test on the cable harness. The tester may also measure and use temperature in analyzing the cable harness, or may apply temperature cycling, different or varying atmospheric pressures, vibration, shaking, or shock to the cable harness.
Owner:PSIBER DATA SYST

Method and apparatus for measuring objects, particularly useful for measuring diamonds

A method and apparatus for measuring the mass of individual objects, particularly small diamonds, within a predetermined range of sizes, by conveying the objects towards an oscillatable probe having a predetermined mass and a vacuum port of smaller dimensions than those of the objects; applying vacuum to the vacuum port to attract and hold thereto one of the individual objects to thereby add its mass to the mass of the oscillatable probe; measuring the oscillating frequency of the oscillatable probe while the individual object attracted thereto is held by the vacuum applied to the vacuum port, and utilizing the measured oscillating frequency of the probe and the object attracted thereto to compute the mass of the object, before releasing the vacuum to release the object.
Owner:RACHEL KIBBUTZ RAMAT

Toxicity screening method

The present invention provides materials and methods for predicting the in vivo toxicity of a given compound. For example, the invention comprises conducting at least three distinct assays in parallel to provide information about three distinct parameters of cytotoxicity of a chemical in a given target cell, which information is useful for predicting in vivo cytotoxicity.
Owner:CEETOX

Tape measure attachment

An apparatus can be conveniently and temporarily attached to a tape measure to aid in measuring a workpiece. The apparatus has a means of engaging a workpiece at one end of a length to be measured, and has a means of removably attaching to the tape measure. The attachment mechanism consists of a rigid, substantially flat member which is designed to rest under the tape, with two tabs protruding upwards from said rigid member. Each tab has at least one kerf formed in the side of that tab which is adjacent to the tape when the rigid member rests under the tape, so that the curving edges of the tape fit into those kerfs, holding the apparatus in place. In this manner, the apparatus is conveniently attachable to and removable from the tape. Furthermore, while the apparatus is attached to the tape, the apparatus adds stability to the tape, by reinforcing the position of the curving edges of the tape. Also, the apparatus can be conveniently slid along the tape to whatever position is appropriate for engaging a workpiece to be measured. The engagement mechanism of the apparatus consists of a rigid, substantially flat member which is attached to the attachment mechanism at a substantially ninety degree angle, so that the rigid engagement member is substantially perpendicular to the tape. One surface of the engagement member is designed to rest against and engage a workpiece to be measured, in a manner which does not harm or mar the workpiece. The surface engaging the workpiece can be tacky, or can have a protrusion designed to insert into a hollow workpiece, such as a pipe.
Owner:TAPE EASE

Nanoliter viscometer for analyzing blood plasma and other liquid samples

A microfabricated, a nanoliter capillary viscometer includes a first channel that is defined by a first channel-defining surface in a first substrate and a second channel defining surface in a second substrate. The progress of liquid through this first channel is monitored and used to determine viscosity. Viscosities in the range of 1 cP to 1000 cP are easily measured. Self-calibrating versions of the viscometer are also disclosed.
Owner:RGT UNIV OF MICHIGAN

Handheld laser induced breakdown spectroscopy device

A novel device, method and systems disclosed managing the thermal challenges of LIBS laser components and a spectrometer in a handheld structure as well the use of simplified light signal collection which includes a bare fiber optic to collect the emitted light in close proximity to (or in contact with) the test material. In one example embodiment of the handheld LIBS device, a burst pulse frequency is 4 kHz is used resulting in a time between pulses of about 250 μs which is a factor of 10 above that of other devices in the prior art. In a related embodiment, an active Q-switched laser module is used along with a compact spectrometer module using a transmission grating to improve LIBS measurement while substantially reducing the size of the handheld analyzer.
Owner:TSI INC

Full characterization wavefront sensor

ActiveUS9976911B1More characterization of opticalUseful measurementOptical measurementsPhotometryPhysicsOptical power
Sensors, devices, apparatus, systems and methods for replacing microlens arrays with one or more switchable diffractive waveplate microlens arrays for providing measurements of wavefronts and intensity distribution in light beams with high spatial resolution with a single optical radiation sensor. The device acts like a conventional Shack-Hartmann wavefront sensor when the microlens array elements are in focusing state, and the device performs light beam intensity profile characterization acting as a beam profiler when the optical power of lens array elements is switched off.
Owner:BEAM ENG FOR ADVANCED MEASUREMENTS

Reagents for the quantitation of active oxygen

A compound represented by general formula (I) or (II) or a salt thereof and an agent for measurement of a reactive oxygen comprising said compound or a salt thereof:wherein R1 and R2 independently represent an aryl group which may be substituted, e.g., a phenyl group substituted with an amino group or a hydroxy group, and R3 represents a 2-carboxyphenyl group which may be substituted.
Owner:NAGANO TETABUO +1

Systems and Methods for Seismic Data Acquisition Employing Clock Source Selection in Seismic Nodes

Systems and methods for acquiring seismic data are described, one system comprising one or more seismic sources, a plurality of sensor modules each comprising a seismic sensor configured to sample analog seismic data, each module comprising a comparing unit comprising software; wherein the software in each module tests clock quality by running a sigma-delta modulator from two different clock sources in the node and compares a noise-floor of the modulator when using the different clocks.
Owner:WESTERNGECO LLC

Tape measure with true and reduced scales for contractor's convenience and accuracy

A tape measure for measuring the distance between a first point and a second point. The tape has a flexible, elongated blade. The blade has a plurality of sets of markings and numbers imprinted thereon which correspond to units of measure. The first set of markings consist of true-size indicia for measuring true distances. The second and subsequent sets of markings consist of indicia divided at increments thereon to be utilized for measuring distances directly from drawings prepared at a reduced scale. The tape measure provides a single tool for measuring distances from reduced scale drawings without making calculations and also for measuring true-size distances in construction layout. Construction errors and delays are reduced through the use of this combination device.
Owner:HIRSCH WILLIAM J JR

Contour mapping system applicable as a spine analyzer, and probe useful therein

A contour mapping system useful as a spine analyzer includes a probe for application to a user's hand with the outer tip of at least one finger of the hand movable along the outer surface of the object (e.g., a person's spine) whose contour is to be mapped. A position sensor is carried by the probe and is movable therewith, and with the user's hand, as the user's finger moves along the outer surface of the object. The system further includes a position tracking system for tracking the movement of the position sensor as the probe is moved with the user's hand along the outer surface of the object.
Owner:ORTHOSCAN TECH

Sensor cartridge for detecting component of at least one sample

The present invention relates to a cartridge for sensor for detecting the concentrations of one or more components in a sample. The cartridge for sensor for detecting one or more components in a sample of the present invention not only enables quantitative measurement of one or more components in a sample by one time sample injection but also facilitates mass-production with low cost owing to the simple structure and easiness in preparation and carry. Therefore, the cartridge of the present invention can be effectively used as the biosensor cartridge for field measurement.
Owner:I SENS INC

Vertical roaming in wireless networks through improved quality of service measures

InactiveUS20050068982A1Improved vertical handoffEnabling measurementTime-division multiplexWireless communicationQuality of servicePacket collision
A system and method for improved vertical handoff between different types of wireless network. Network allocation vector occupation and packet collision probability are used as quality of service measures, enabling vertical handoffs to be delayed until actually beneficial to quality of service. Improved wireless network cell boundary detection in vertical handoff scenarios is achieved with a Fourier-based technique in conjunction with an adaptively determined minimum operating signal strength threshold. Improved wireless network cell boundary detection enables vertical handoffs from high quality of service networks to be delayed as long as possible. Together, practical wireless network quality of service measures and improved detection of wireless network cell boundaries in vertical handoff scenarios reduce the rate of unnecessary vertical handoff resulting in higher overall quality of service experienced by a mobile computing device roaming between wireless network types.
Owner:MICROSOFT TECH LICENSING LLC

Squaring and Leveling Tool

A multi-purpose squaring and leveling tool comprising a generally trapezoidal body, angled corners, and leveling inserts. The tool may be used for tradesman, pipe fitters, and home carpenters as a means of setting joints and other construction or repair. The shape of the tool allows for the squaring and leveling of joints around obstacles which may present barriers to traditional squaring tools.
Owner:HARRIS CHUCK L

Dynamic fiber bragg grating interrogation system and method

A fiber Bragg grating (FBG) interrogation method allows for high frequency dynamic measurement. The method may utilize a broad band light source connected to the sensing elements. Each sensing element may comprise two wavelength matching FBGs, a coupler, and a photodiode. The FBG closest to the light source may attenuate the central wavelength in the transmission spectrum and thus the reflection spectrum of the second FBG. Variations in intensity of the second FBG may be measured by the photodiode and can be calibrated to the desired measurands.
Owner:UNIV HOUSTON SYST

Pressure sensor

A pressure sensor is provided with a carrier (2), which in an inner region includes a membrane (4) on which at least one first measurement element (R1−) for detecting a pressure impingement of the membrane (4) is arranged. Additionally, at least one second measurement element (R3−) for detecting a pressure impingement of the membrane (4) is arranged on the membrane. The first measurement element (R1−) and the second measurement element (R3−) are arranged distanced differently far from the edge of the membrane. The output signals of the first and the second measurement element (R1−, R3−) are evaluated together in a manner such that the two measurement elements (R1−, R3−) detect a differential pressure acting on the membrane (4), and thereby compensate the influence of the system pressure acting on both sides of the membrane (4).
Owner:GRUNDFOS

Multi-well plate for use in raman spectroscopy

A multi-well plate for use in Raman spectroscopy includes a substrate and a metallic layer. The substrate defines a plurality of wells in a top surface thereof. The metallic layer is disposed on a bottom wall of each of the wells in the substrate. The substrate may comprise a material selected from the group consisting of glass and plastic. Each of the wells in the substrate has a diameter of about 0.02 to 10 mm and a depth of about 0.1 to 5 mm above the metallic layer for reception of about a droplet of an analyte
Owner:YANG FR JIANN FU

Method for measuring electrical isolation of a vehicle chassis

A method for measuring the isolation resistance between a chassis and a battery terminal in an electric vehicle. The method can include measuring an open voltage (VP(open)) of the positive terminal; measuring an open voltage (VN(open)) of the negative terminal; measuring a voltage (VN(S1 closed)) between the negative terminal and the chassis with switch S1 closed; measuring a voltage (VP(S1 closed)) between the positive terminal and the chassis with switch S1 closed; calculating the ratio (VP(open) / VN(closed)) of the voltages VP(open) and VN(closed); calculating the open ratio of the open voltages (VP(open) / VN(open)); calculating the difference between the ratio (VP(S1 closed) / VN(S1 closed)) and the open ratio (VP(open) / VN(open)); and multiplying the value of the test resistor (R0) by the difference between the ratio (VP(S1 closed) / (VN(S1 closed)) and the open ratio (VP(S2 open) / VN(S1 open)) to obtain the isolation resistance.
Owner:FARADAY&FUTURE INC

Organic colored microparticles, diagnostic reagent kit containing the same, and in vitro diagnosis method

Provided are an immunochromatography kit that is highly sensitive and capable of multicoloration, and organic colored microparticles that are ideal as an element of the immunochromatography kit. Organic colored microparticles having an average grain size between 10 and 1,000 nm and a color intensity between 1.0 and 5.0 are prepared using cellulose as the starting material. When the organic colored microparticles are used as a label in an immunochromatography kit, the immunochromatography kit is of a high sensitivity than conventional technology. The immunochromatography kit is also capable of multicoloration and is useful for rapid diagnosis.
Owner:ASAHI KASEI FIBERS CORPORATION
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