109results about How to "Stable and accurate measurement" patented technology

The invention relates to a battery. The battery comprises a detection device and a conductive wire, wherein the detection device is positioned inside the battery and on the positive electrode side or the negative electrode side of the battery and is used for detecting the inner electric potential of the battery; and the conductive wire is electrically connected with the detection device, is insulated from the positive electrode and the negative electrode of the battery and is used for leading out the electric potential value detected by the detection device. The detection device is arranged inside the battery provided by the embodiment, and the detection device is led out together with the positive electrode and the negative electrode of the battery by using the conductive wire which is electrically connected with the detection device, so that the potential of a single electrode can be measured accurately and stably.

To propose an ultrasonic exploration method and an ultrasonic exploration apparatus that allow exploration of an exploration-target area such as a welded portion to provide a cross-sectional image of the exploration-target area accurately and stably.

[Solution] An exploration operation, in which the transmission/reception position, at which ultrasonic waves are transmitted and received, is changed by a specified pitch distance, is performed for each of a plurality of incident angles. A nonlinear image in which echo signals acquired from harmonic waves of reflected waves are presented is generated for each incident angle. Each nonlinear image is converted into a frame conversion image in accordance with the cross-sectional shape of an exploration-target area. A signal intensity threshold for removing echo signals resulting from an orientation defect is determined in advance. Frame conversion images formed by only echo signals 41a whose signal intensity is the signal intensity threshold or more are overlapped to generate a nonlinear exploration image 35. Exploration of a welded portion 23 stably provides a nonlinear exploration image 35 in which the shape of an interface 25 of the welded portion 23 is shown accurately and clearly.

The present invention relates to a process for producing a chemically strengthened glass, which includes conducting a sampling inspection including a measurement of a refractive index distribution of a glass. According to the process of the invention, the surface compressive stress and the depth of the compressive stress layer of the chemically strengthened glass can be stably and accurately measured.

In a semiconductor integrated circuit device, a sheet-like temperature monitor member of vanadium oxide is provided, whose one end is connected to one via while the other end is connected to another via. A sheet-like thermal conducting layer of aluminum is provided below the temperature monitor member. A region equal to or greater than a half of the entire temperature monitor member overlies the thermal conducting layer in a plan view.

A method and system for setting the optimal price for a hotel property are described. The method includes the steps of receiving electronic data having marketing information, including, for example, the customers won and lost by competitors. One or more price sensitivity coefficients are calculated based on the market data. The price sensitivity coefficients are used to calculate a predicted share value representing the probability that a next customer will book a property at the subject hotel at a particular price. The price sensitivity coefficients are also used to calculate a price elasticity value representing the responsiveness of demand for the hotel property to a change in the price of that property. The price of the hotel property is set at a point where the price elasticity value is substantially equal to −1.0.

A depth measurement apparatus that calculates depth information of an object based on a first color image and a second color image, includes: a depth calculator adapted to calculate depth information of a target pixel in a color plane, using the two color images; and an evaluator adapted to calculate, for each color plane, an evaluation value to indicate a confidence coefficient of the depth information in the target pixel, wherein the depth calculator is further adapted to determine, based on the evaluation value, a color plane from which the depth information of the target pixel is calculated.

An array-type capacitive pressure pulse wave sensor includes m rows of lower electrodes arranged in parallel with each other to extend substantially linearly in a direction approximately orthogonal to the extending direction of the artery at the time of measurement, n columns of upper electrodes arranged in parallel with each other at a prescribed distance from the m lower electrodes to extend in a direction crossing the extending direction of the m lower electrodes, and m×n capacitive elements formed at intersections of the m lower electrodes and the n upper electrodes. The m×n capacitive elements are arranged in a staggered manner when the pressure detecting portion is seen in two dimensions. Thus, it is possible to provide an array-type capacitive pressure pulse wave sensor that can be manufactured inexpensively and that ensures accurate and stable measurement of the pressure pulse wave.

A cuff for a blood pressure monitor includes an air bag having an inflated/deflated space permitting a fluid to come in and out, and a sponge that is arranged inside the inflated/deflated space to extend substantially continuously from one end to the other end of the air bag in its winding direction. With this configuration, a cuff for a blood pressure monitor permitting the air bag to be inflated uniformly over the entire region when the air is introduced therein is achieved.

The invention provides a distance measuring device and method and a vehicle. The distance measuring device comprises an image acquisition module, a lane line identification module, a distance collection module and an intelligent decision module, wherein the image acquisition module is used for collecting a front image of the vehicle, and transmitting the front image of the vehicle to the lane line identification module; the lane line identification module is used for identifying a lane line in the front image of the vehicle, marking off a lane with the lane line as a boundary, and transmitting the lane marked off by the lane line identification module to the intelligent decision module; the distance collection module is used for collecting a distance between the front vehicle or an obstacle and the vehicle, and transmitting the distance to the intelligent decision module; and the intelligent decision module is used for determining the lane where the front vehicle or the obstacle is located and the distance between the front vehicle or the obstacle and the vehicle according to a mounting angle of the distance collection module and the lane and the distance which are marked off by the lane line identification module. By adoption of the technical scheme of the invention, the distance can be measured at divided lanes.

The invention relates to the field of geology detection equipment and discloses a soil humidity sensor based on an oscillation circuit and a working method of the soil humidity sensor. Two electrode plates and soil located between the two electrode plates are taken as a capacitor, a dielectric constant of the soil can be obtained through backstepping based on the obtained frequency value of the oscillation circuit by the use of the relation between the frequency and the capacitance of the oscillation circuit and the relation between the capacitance and the dielectric constant, the humidity value of the soil is further obtained, accordingly, the defect of low linearity of transmission FDR and TDR can be overcome, the soil moisture can be rapidly, accurately and stably measured. Besides, the soil humidity sensor further has the characteristics that the circuit structure is simple, the cost is low, the application is convenient and the like, is high in practicability and facilitates actual popularization and use.

The invention discloses a two-phase flow interface parameter measuring method adopting a two-phase flow interface parameter measuring system for measurement. The two-phase flow interface parameter measuring system comprises three layers of electrode wires used as exciting electrode wires and receiving electrode wires. The method comprises the steps as follows: S1, an exciting signal control unit generates an exciting signal and sends the exciting signal to all exciting electrode wires; S2, the exciting electrode wires receive and transfer the exciting signal to the receiving electrode wires; S3, all detection points on the receiving electrode wires acquire a current signal and send the current signal to a received signal processing unit; S4, the received signal processing unit receives thecurrent signal sent by a phase state detection device and calculates interface parameters according to the received current signal, wherein the interface parameters comprise void fraction, interfacearea concentration, bubble size and bubble speed. The whole interface parameters on sections can be measured in real time, accurately and stably under an instantaneous condition, and data support is provided for conducting deep study of two-phase flow under the instantaneous condition.

A cuff for a blood pressure monitor is wound around a measurement site of the living body, and includes an air bag having an inflated/deflated space formed therein by melting and bonding rims of an outer wall portion and an inner wall portion together. The air bag contains a band-shaped connecting portion, which has ends respectively attached to one end and the other end of the air bag in its winding direction around the living body, so as to extend substantially continuously from the one end to the other end of the air bag. The band-shaped connecting portion is arranged inside the inflated/deflated space of the air bag. With this configuration, a cuff for a blood pressure monitor permitting uniform inflation of the air bag over the entire region when the pressurized air is introduced therein is obtained.

The invention relates to an arm type heart pulse detecting device and a detecting method, and the device mainly comprises an electrocardio-sensor, a physiological signal processing circuit, a microprocessor, a motion sensor, a wireless communication module and an RFID (radio frequency identification) identity identification circuit, wherein the electrocardio-sensor is connected with the physiological signal processing circuit, the physiological signal processing circuit is connected with the microprocessor, the microprocessor is further connected with the motion sensor, the microprocessor is connected with the wireless communication module, and the RFID identity identification circuit constitutes an identification system alone; the detecting method comprises the following steps: wearing the arm type heart pulse detecting device on an arm, leading the electrocardio-sensor to be in contact with skin for acquiring electrocardiosignals, carrying out amplification, filtration and A/D (analog/digital) conversion on the electrocardiosignals through the physiological signal processing circuit to obtain digital signals, leading the microprocessor to carry out calculation and analysis after obtaining the digital signals, and finally obtaining an electrocardiogram and a heart rate value after treatment; utilizing the motor sensor to acquire motion signals of a human body, and calculating and analyzing the signals by the processor, thereby obtaining the motion state of the human body; and further calculating the one-day quantity of motion of a carrier. The arm type heart pulse detecting device does not need a lead wire, carries out active measurement of heart pulse, is simple and convenient for wearing, and can accurately stably measure the electrocardiosignals under the motion state, judge the motion state of the carrier, further calculate the one-day quantity of motion of the carrier and the like.

A living-body component measuring apparatus measures a component of an inner tissue of a living body serving as an object to be measured by emitting laser light having two or more wavelengths from a light source and measuring reflected light of the laser light from the inner tissue of the living body. The living-body component measuring apparatus includes a beam splitter that changes optical paths of a part of the laser light and the reflected light, a reference-light measuring unit that measures, as reference light, the part of the laser light having the optical path changed by the beam splitter, a reflected-light measuring unit that measures the reflected light having the optical path changed by the beam splitter, and an analysis unit that analyzes the inner tissue by measuring a spectrum of the reflected light or the reference light.

The invention relates to a radar device for measuring a relative distance to a target. It is an object of the invention to precisely determine the relative distance to the target in a wide range. The radar device according to the invention generates a second pulse by demodulating a signal arriving from a target as a response to a wave signal modulated with a first pulse. The radar device evaluates, as the relative distance to the target, such two different instances that an absolute value of a deviation of a ratio of two instantaneous values of the second pulse from a reference value as a ratio of two instantaneous values of the first pulse is to be minimum. The respective two instantaneous values are with a predetermined interval therebetween on a time axis.