181results about How to "Simple and accurate measurement" patented technology

The present invention concerns a battery monitoring system for monitoring a plurality of batteries serially connected to form a string. The battery monitoring system includes a number of probes connected to at least a portion of the string, a daisy chain bus having a select channel for serially interconnecting the probes, the bus having other, parallel channels for data communication and power, and a system server. The probes each have a sensing module and a communication module. The sensing module senses characteristics of at least a portion of the string, such as voltage or current. The communication module receives the sensed characteristics and converts them into digital form for broadcast to the system server over the bus. The communication module of the probes have a memory for storing an address assigned to the corresponding probe upon reception of an initialization signal sent by the system server via the bus.

The present invention enables to easily and accurately measure a joint of a robot apparatus, in particular, a lost motion of a driving system of the joint, and, to easily and accurately perform a diagnosis of a lifetime or a life expectancy of a joint mechanism of the robot apparatus based on a measured result.

The present invention relates to an assistant for implant stent. The assistant for implant stent of the present invention comprises a body with a predetermined length and a drill insertion hole bored through the body from a top surface to a bottom surface thereof. The body comprises a support portion with a predetermined thickness and a sectional area greater than that of the body. The support portion is formed on the top surface of the body.

A method of estimating a geometric error between a linear axis and a rotary axis in a multi-axis machine tool is provided, the method including creating a circular path under the control of one or more drive axes and measuring a radial error of the circular path using a ball bar, defining the relationship between position-dependent geometric error parameters and position-independent geometric error parameters and measured data using an error synthesis model and an equation of a ball bar, defining a linear equation with unknown position-independent geometric error parameters by removing higher order terms of the position-dependent geometric error parameters and position-independent geometric error parameters, and obtaining the position-independent geometric error parameters through least squares from the linear equation.

A CPU (170) of a human subject index estimation apparatus (1) computes a waist circumference based on body weight measured by a weight scale (110) and bioelectric impedance measured by a bioelectric impedance measurement unit (200A), and information such as age and height which was input through input unit (150). The computed waist circumference is stored, along with the information such as age and height, in a third storage unit (140) that is a rewritable non-volatile memory. The CPU (170) displays the waist circumference on display unit (160).

A method for measuring the parameters for manufacturing spectacle lenses and a device for realizing the same. The measuring method can precisely and easily measure the parameters for manufacturing spectacle lenses by reflecting the measurement subject's physical features and spectacle-wearing habits through the naturally captured image of the measurement subject who looks at the infinite distance focus. The device for measuring the parameters for manufacturing spectacle lenses can be easily manufactured and manipulated through various simple modules, such as the infinite distance focus providing means, the near distance focus providing means, the camera means, the flash means, and so on, can be manufactured in a small size in such a fashion that a user can carry it. The auxiliary device for measuring the parameters for manufacturing spectacle lenses can accurately and easily measure various parameters for manufacturing spectacle lenses by being connected with the portable tablet computer.

A sheet paper storage and dispensing device according to the present invention stores and dispenses sheet paper, and includes: a first reel drum onto which a tape is wound from one side of the tape; a second reel drum on which sheet paper is stored by winding the tape thereon from an opposite side of the tape in a state in which the tape and sheet paper supplied from an external sheet paper transporting section to an intake/discharge port are mutually superimposed; a motor which drives the first reel drum and the second reel drum via a drive system; an electromagnetic clutch which switches between transmitting and interrupting drive force from the drive system; an electromagnetic brake which applies a brake to the drive system; a trigger sensor which detects supplying of the sheet paper from the sheet paper transporting section to the intake/discharge port; a tape speed detection section which detects a transporting speed of the tape at the intake/discharge port; a motor speed variation control unit which controls changes in a rotation speed of the motor; and a winding control unit which causes a winding operation by controlling the electromagnetic clutch so as to transmit the driving force of the motor when supplying of the sheet paper to the intake/discharge port is detected by the trigger sensor, the winding operation being a operation in which the tape is dispensed from the first reel drum while the tape is wound onto the second reel drum, so that the sheet paper supplied to the intake/discharge port is wound onto the second reel drum, the winding control unit controlling the motor speed variation control unit such that, during the winding operation, the transporting speed of the tape detected by the tape speed detection unit is held at a fixed speed which is faster by a predetermined amount than a transporting speed of the sheet paper transporting section.

The invention relates to a nondestructive ultrasonic test method in which at least one ultrasonic pulse is emitted into a workpiece under test by means of at least one ultrasonic transmitter (3), the ultrasonic pulse is reflected on boundary surfaces within the workpiece, the reflected ultrasound is received by at least one ultrasonic receiver (2), and the associated signals are evaluated, the ultrasound penetrating a damping block (4) that is arranged between the workpiece and the transmitter or receiver. Said method is characterized in that it includes at least one step for determining the sound velocity in the damping block (4) by means of an array-type probe (1) comprising selectively controllable transducers; in said step, at least one first transducer (3) of the array-type probe (1) is used as the transmitter of at least one ultrasonic pulse, while at least one second transducer (2) of the array-type probe (1) is used as the receiver of the ultrasonic pulse, and the sound velocity in the damping block (4) is determined at least by measuring the propagation time of the ultrasound along the shortest distance (e1, e2) of the ultrasound between the respective transducers (2, 3) that are placed at a distance from each other.

Contemplated devices and methods allow for simple and accurate measurement of static and dynamic heat flux and heat capacity of a structure in situ. Especially preferred devices and methods use a thermally equilibrated housing that encloses a thermoelectric sensor and an associated microprocessor and external temperature sensor.

The invention discloses a method for measuring wettability of a non-aqueous electrolyte cell and a device thereof, comprising: enclosing an electrode module into a case, and injecting electrolyte into the case equipped with the electrode module; after injecting the electrolyte, for certain scheduled time, infusing the electrolyte; after injecting the electrolyte, measuring capacitance value between an anode and a cathode through electrically connecting measuring terminals of a capacitance spectrometer with the anode and the cathode of the electrode module; estimating the wettability of the electrolyte in the electrode module through measured capacitance value.

A lighting system comprising a lamp arranged to transform electricity into a light beam having different properties; a light control means arranged to adjust said light beam properties; an ultrasonic transmitter arranged to transmit ultrasonic signals; an ultrasonic receiver arranged to receive reflected ultrasonic signals; and a processing means arranged to derive a time-of-flight signal representing the time differences between said transmitted and received ultrasonic signals and to send control signals to said light control means in dependence of said time-of-flight signal. The processing means performs a reference calibration step: the time-of-flight is repeatedly measured a multitude of times, and calculates the average of said measured time-of-flight values and stores the average in memory means as a reference time-of-flight value if said deviation of the majority of the measured time-of-flight values of said multitude of measurements is lower than a predetermined threshold.

The invention discloses a method for the measuring gas leakage rate of a sintering machine system. The method is on the basis that N2 is not involved in the reaction in the sintering process and adopts N2 balance for gas leakage measurement. The method includes the steps of 1, extending the side plate of a sintering machine trolley upwardly, and guaranteeing a no-material space between the sintering material surface and the upper edge of the side plate of the sintering machine trolley; 2, measuring gas incoming speed of the sintering material layer on the sintering material, and measuring the flue gas velocity, the flue gas temperature, the flue gas pipeline nitrogen concentration and the flue gas pressure; 3, calculating the gas leakage rate according to the measured data by the formulas (img file = 'DDA0000523955380000011.TIF' wi = '75' he = '38' /) (img file = 'DDA0000523955380000012.TIF' wi = '752' he = '' / 136). The method has the advantages that the gas leakage rate of the sintering machine system can be measured simply and accurately, and disadvantages that an existing measuring technology is inconvenient to operate, errors are large, and only partial gas leakage rate can be measured by a gas leakage spot gas velocity measuring method are solved.

A magnetic compass includes: a three-axis magnetic sensor for detecting geomagnetic vector as geomagnetic components in directions of three orthogonal axes x, y, and z; a data-plane calculating unit for calculating a data plane on which output data of the three-axis magnetic sensor are present in a sensor coordinate system of the three axes x, y, and z; a unit vector calculating unit for calculating unit vectors of a horizontal coordinate system of three orthogonal axes X, Y, and Z whose Z-axis runs vertically and X-Y plane defines a horizontal plane relative to the earth; a horizontal coordinate system conversion unit for converting geomagnetic components in the sensor coordinate system detected by the three-axis magnetic sensor into geomagnetic components in the horizontal coordinate system; an azimuth calculating unit for calculating azimuth based on the converted geomagnetic components in the horizontal coordinate system; and a display unit for displaying the calculated azimuth.