measurement (Total 136687 Patents Found)

A method and device is disclosed wherein a subject is excited by electromagnetic radiation in a locally limited range to emit radiation that is not coherent with the exciting radiation. The radiation of atoms lying close to one another on the surface of the subject is not correlated, i.e., the excited point of light ra...
The present invention relates to an apparatus which can be inserted between the stack and a transceiver of a transmissometer to provide zero and span measurements using the primary light source from the transceiver. The apparatus includes a calibration device mounted between the transceiver and one side of the stack an...
An optical voltage measurement circuit for use in an integrated circuit having at least one voltage power rail and method of operation thereof. The optical voltage measurement circuit includes a reference voltage rail that, in an advantageous embodiment, is coupled to an external variable power supply. The optical volt...
A method of making a two-dimensional measurement of the concentration of a biological macromolecule aqueous solution and an apparatus for carrying out this method are disclosed. By charging the biological macromolecule aqueous solution and an aqueous crystallizing agent solution into a crystallizing cell, irradiating t...
A method for aligning measurements of a hostile environment includes synchronizing at least two clocks, wherein at least a first clock is in the hostile environment, measuring characteristics of the hostile environment, aligning time domain curves of the collected measurements, correlating the curves using one or more ...
A device for air flow rate measurement in the air intake tube of an internal combustion engine which has at least two temperature-dependent resistors in different branches of a bridge circuit having closed-loop electric current control, and which is characterized in that the temperature-dependent resistors are embodied...
A method for converting a movement into an analog or digital variable, in particular into an electrical voltage, and an apparatus for performing the method are proposed. The apparatus includes at least one measuring spring element having windings and fabricated of electrically conductive material, which is disposed tog...
The suspension density of a pneumatically transported solid, such as coal, is obtained by using a combination of a radial gamma ray densitometer and a second, fast-response density meter. The combination is required to get the desired combination of accuracy and response time. The second measurement is used for its fas...
A method and system for determination of a pressure of the pressurized fluid with the use of a diaphragm pump responsible for accumulating the pressurized fluid in the vessel. The pump has a pump cavity and a diaphragm with a piezoelectric element which is actuated by an application of a voltage to displace the diaphra...
Improved microsensors are provided by combining surface micromachined substrates, including integrated CMOS circuitry, together with bulk micromachined wafer bonded substrates which include at least part of a microelectromechanical sensing element. In the case of an accelerometer, the proof mass is included within the ...
The present invention provides a method for producing a dry analytical element for measurement of pancreatic lipase contained in a body fluid which contains triglyceride of long chain alkyl fatty acid having 12 to 22 carbon atoms, monoglyceride lipase, and a glycerine measurement reagent, and comprises a water-impermea...
In one embodiment, first optical signal can be generated at a first end of an optical fiber segment at a first time. The first optical signal can be detected at a second end of the optical fiber segment at a second time. A second optical signal can be generated at a second end of the optical fiber segment at a third ti...
An operation method for a semiconductor measurement apparatus includes measuring means, displaying means, inputting means, storing means, and computing and controlling means that is connected to each means and that performs computation and control. The method includes selecting, through the inputting means, a template ...
A data providing device associated with a trajectory sensing system has at least: a) a frame; b) the frame supporting at least two sensing receivers and at least one emitter for the sensing receivers, the sensors sensing movement with respect to a surface; c) the frame supporting a third sensor that senses i...
A pressure-measuring vessel system for microwave assisted chemical processes is disclosed. The vessel system includes a pressure resistant vessel that is otherwise transparent to microwave radiation, a pressure-resistant closure for the mouth of the vessel, with portions of the closure including a pressure resistant sy...
A method and apparatus for measuring Tot-Hb in a sample are provided. The method comprises collecting absorbance measurements of a sample using a spectroscopic apparatus that comprises a first primary calibration algorithm for one of Oxy-Hb, “Oxy-Hb plus Deoxy-Hb”, or “Total-Hb minus Met-Hb” and a second primar...
An electrophysiological measurement method and system is provided for positioning an implantable transducer of a hearing instrument relative to a middle ear component or inner ear of a patient. The method and system employ electrophysiological measurement signals obtained in response to test signals applied to an impla...
A dual function flow measurement apparatus is provided that combines the functionality of an apparatus that measures the speed of sound propagating through a fluid flowing within a pipe, and measures pressures disturbances (e.g. vortical disturbances or eddies) moving with a fluid to determine respective parameters of ...
A system and method are provided to generate a histogram of jitter peak values within histogram hardware. The histogram is then transferred to a jitter analyzer, which is implemented in either dedicated hardware or software running on a general purpose processor. The jitter analyzer calculates a cumulative distribution...
A system, apparatus and method may measure motion parameters of an in-vivo device, utilizing for example surface or flow irregularities for calculation of movement, distance, velocity etc. There may be provided with an in-vivo imaging device a motion parameter measurement unit that may include one or more of illuminati...
Systems and techniques for a scanner having a top plate with an integrated scale. A scanner base mates with a scanner top plate assembly, with the top plate assembly including an integrated scale. The top plate assembly includes a scan window and a scale mechanism. The top plate rests on or is secured to suitable resti...
Systems and methods that measure the delay (latency) through a digital processor or circuit. A waveform generator outputs a primary (chirp) signal to the digital circuit, along with an auxiliary pulse signal to a delay circuit. The auxiliary signal corresponds to a sample of the primary signal that is input to and outp...
A weighing apparatus and method for measuring the weight of articles fed along a processing path. The weighing apparatus includes multiple segments, i.e., a primary scale segment adapted to weigh articles of a first configuration, and at least one secondary scale segment adapted to cooperate with the primary segment to...
An electrochemical sensor for measuring the amount of hydrogen sulphide or thiols in a fluid in a wellbore comprises a temperature- and pressure-resistant housing containing a flow path for the fluids. The fluids flow over one side of a gas permeable membrane made of zeolite or a suitable ceramic material, the other si...
A head mount apparatus mounted on a head of a user is disclosed, which includes: detection means to detect a variation of a bloodflow rate of the head; and transfer means to transfer a detection value of the detection means to a predetermined transfer destination. An information processing apparatus is also disclosed, ...
An embodiment of the present invention relates to a method for measuring a device-to-device (D2D) signal by a D2D terminal in a wireless communication system, the method comprising the steps of: receiving a D2D signal; and carrying out a measurement using a reference signal included in the D2D signal, wherein the termi...
An apparatus for efficient, precise and accurate measurement of the frequency, amplitude, and phase of a single input tone frequency and/or multiple separable input tone frequencies. Tone separability can be achieved by proper selection of the parameter N, the sample length of the DFT/FFT. Application of the invention ...
Arrangements are described for fitting a cochlear implant system to an implanted patient. A test stimulation sequence is delivered to the implanted patient which is based on a concatenated sequence of time shifted envelopes of sinusoidal amplitude modulated (SAM) signals that have a carrier frequency f c modulated by ...
The present invention includes biochips for the measurement of cellular ion channels and methods of use and manufacture. The biochips of the present invention have enhanced sealing capabilities provided in part by chemically modifying the surface of the biochip surface or substrate or by exposure to an ionized gas. The...
A laser measurement system operates to measure portions of a vehicle, such as a vehicle frame. The measurements are used, for example, to determine if the portions of the vehicle are bent or damaged. The measurement system includes a laser scanner and at least one target assembly that can be connected to a point of the...
A measurement system and method for determining a depth of penetration of a working portion of a surgical instrument (e.g., a rotating drill bit in a bore). A first sensor outputs a first signal representative of a displacement of the leading edge of the drill bit in the bore. A second sensor outputs a second signal re...
The device is self retractable, of rigid material in telescopically, it can be installed in all types of drills: home and industrial, wired and wireless, which conforms to the bases where the mandrel holder bits; thus covering completely the drill, thus avoiding the risk of contact with hands that drill, drill during h...
Method and arrangement for the acquisition of measurement data of a vehicle ( 4 ) traveling through a radar field ( 2 ), wherein a reflector ( 7 ) is arranged in the radar field ( 2 ). Direct and indirect reflection signals are received from the vehicle ( 4 ), and direct and indirect measurement data are derived which ...
A radiocommunications network includes terminals and a network entity. The network entity determines at least one subset of network terminals on the basis of the distances between the terminals. A message is then sent to at least some of the terminals of said subset requesting them to effect a measurement. A value repr...
A method for analysis includes directing a converging beam of X-rays toward a surface of a sample having multiple single-crystal layers, including at least a first layer and a second layer that is formed over and tilted relative to the first layer. The X-rays that are diffracted from each of the first and second layers...
A measurement method includes calculating a central frequency f cen expressed by the following expression where f is a frequency and DataC(f) is data expressed in a Fourier spectrum of an interference signal between reference light and test light that does not contain stray light generated in an interferometer, which ...