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JP3458938B2 |
To improve the accuracy of quality evaluation by providing a plurality of measuring elements for torque detecting part which are fitted to a fitting jig a specified distance away from a rotary spindle and by making them rotation symmetri...
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JP3451814B2 |
To obtain a verification apparatus for dynamometer in which the pit for chassis dynamometer is reduced while enhancing the workability and safety of verification work. A load meter 5 is coupled between a fixed part and one torque arm 4c ...
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JP2003254850A |
To provide a three-line system sensor output processing circuit with a self-diagnosis function which enables precision increase by an increase of a dynamic range of voltage of a transmission signal, without increasing transmission lines....
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JP3444952B2 |
PURPOSE: To facilitate trouble return by preventing the simultaneous trouble of a strain gauge and to detect the trouble of a load cell during use by bonding strain gauges to respective strain generating parts at a plurality of different...
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JP3437048B2 |
To make it possible to enhance the reliability of a load cell by a method wherein one end of a sheetlike regulation member having a definite frictional resistance is fixed to a fixation part and the other end is inserted into a slight ga...
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JP3413695B2 |
To facilitate a measuring operation in a narrow space in the measuring device of a torque detecting device. A horizontally awing rail 19 is provided on a carriage 7 through a support part 18 and at the same time a vertically moving rail ...
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JP3413690B2 |
To protect a brake against seizure by stopping a brake dynamometer if the output from a torque meter or the hydraulic pressure of brake exceeds an allowable level at the time of the brake off, thereby suppressing the inaccurate brake tes...
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JP3413475B2 |
To evaluate a bearing more accurately by separating the output frequency band of a torque sensor through a filter into a plurality of desired bands thereby decomposing the torque of the outer and inner rings of the bearing into a spike-l...
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JP3411254B2 |
To provide a distortion calibrator, which enables accurate generation of a bridge output with a level corresponding to a set distortion value over a wide range of distortion along and to have a simple structure. This apparatus includes a...
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JP2003139632A |
To dispense with a fastening tool.A pair of holes 1b of an upper hole and a lower hole are formed at the tip of a torque arm 1, and a tapped hole 1c is formed in the middle. Along with forming a pair of holes 3b of an upper hole and a lo...
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JP2003130751A |
To solve the problem that highly accurate and responsive control is difficult because a temperature drift is generated in a torque meter when a dynamometer is controlled by the detection of the torque of a torque meter.The temperature of...
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JP3390032B2 |
PURPOSE: To provide an inexpensive variable pressure contact key device particularly used for a consumer apparatus. CONSTITUTION: For example, a pressure sensing contact pad device using variable capacitance contact pads 22 and 22', peri...
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JP2003083832A |
To provide a midpoint adjusting system of a torque sensor and its midpoint adjusting method, dispensing with adjustment by a volume resistance, capable of reducing man-hours for adjustment and improving uniformly adjustment accuracy rega...
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JP2003065876A |
To provide an abnormality detection device of a torque sensor capable of detecting accurately an abnormality such as disconnection of the torque sensor without using a temperature sensor, and having the small number of part items and a l...
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JP2003057140A |
To provide a load sensor capable of automatically calibrating output changes caused by temperature changes and degradation with time and highly accurately detecting load at all times. A spring 3 of which load value is determined by the a...
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JP3347316B2 |
To test operation with a simple method. A capacity element C0 comprises a displacement electrode which is so supported as to displace under an outside force, and a fixed electrode fixed to a device case to be opposed to the displacement ...
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JP2002310837A |
To provide a calibration method for an imbalance measurement device capable of providing an improved calibration result.Two calibration masses equivalent to or different from each other are simultaneously rotated around measurement axes ...
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JP2002277340A |
To enable comparison of test results between chassis dynamo meters having different forms or the like.A verification vehicle 12 equipped with a sensor for calculating a drive wheel output is run at a prescribed running mode on the chassi...
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JP2002257665A |
To provide a stress sensor 1 inspecting method wherein a constant stress is stably applied to a stress-applied part 2, and a prescribed stress is sequentially applied to the stress-applied part 2 in two or more directions for measuring a...
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JP3316491B2 |
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JP3302449B2 |
PURPOSE: To achieve self compensation by detecting a span and a zero-point trouble at any load point. CONSTITUTION: A difference between a proportional value of an output value between output terminals 14 and 16 with fixed resistors 30 a...
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JP3298343B2 |
PURPOSE: To detect the displacement of a sting fixing frame upon application of a calibration force and calibrate a wind tunnel balance while keeping the relative position between the frame and a carry body within a predetermined range. ...
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JP3286852B2 |
PURPOSE: To allow the setting of an appropriate reference value in the measurement of load. CONSTITUTION: The reference variation setter is employed in an apparatus for detecting a point where temporal variation of load is inflected. The...
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JP2002039795A |
To provide both a compact and low-cost resolver with a fast response speed and little current consumption of a relatively simple constitution capable of accurately detecting the state of the breakage of wires in any rotational position a...
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JP2002040047A |
To prevent the slippage of the cutoff frequency of an SCF circuit even in a self-diagnosis.The drive clock (signal S2) for a sample hold circuit 23a generated by a control signal generating circuit 24 is differed from the drive clock (si...
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JP2002503800A |
The invention concerns a tensile testing sensor mounted on a mechanical member wherein forces to be measures develop comprising a bendable metal blade (1, 22) provided with measuring gauges (2, 23) implanted and positioned on the blade. ...
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JP2002022568A |
To provide a torque sensor capable of judging an abnormality surely and quickly with a simple structure.This torque sensor is equipped with a pair of coils 11 and 12 with inductance changing in opposite directions to each other according...
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JP2002022567A |
To provide a simply structured abnormality detector for a torque sensor capable of surely detecting even an abnormality such as wire breakage of a harness.The torque sensor 1 is equipped with a pair of coils with inductance changing in o...
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JP2002022569A |
To provide a torque sensor capable of simply detecting the abnormality of an abnormality detection means itself without affecting normal operating of the torque sensor.A first main voltage M1 is acquired by amplifying the difference betw...
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JP2002022570A |
To provide a torque sensor capable of simply detecting by itself the abnormality of an abnormality detection means itself without affecting normal operation of the torque sensor.This torque sensor is equipped with a pair of coils with in...
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JP3248543B2 |
PURPOSE: To eliminate the influence of lead wires from measured strain values. CONSTITUTION: A measurement line 19 and dummy line 20 are switched to each other by means of a first and second switches 14 and 15. At the time of calibration...
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JP2002013991A |
To simplify a circuit by reducing the number of rectifying circuits.Each output of a pair of rectifying circuits 23 and 24 connected to a pair of coils 11 and 12 having the inductance to be changed in the opposite directions in response ...
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JP3244111B2 |
To obtain a calibration apparatus by which the neutral point of a torque sensor can be calibrated properly by a method wherein the reference torque of the torque sensor is calibrated by using the output of the torque sensor in a referenc...
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JP2001337025A |
To simply check whether a scanning probe is accurately set on a head part.In a scanning probe apparatus 1 constituted so that the scanning probe 2 equipped with a strain gauge G1 for detecting the bending quantity of a cantilever 22 can ...
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JP2001336995A |
To provide a safe and inexpensive torque detector having temperature compensating function and failure detecting function by a pair of coils of one series.A pair of coils 17 and 18 is serially connected to a load resistor RL, an AC drivi...
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JP2001281081A |
To provide a torque sensor wherein the abnormal torque signal is processed with no load on a microcomputer. A torque sensor is provided which comprises a coil L where an inductance changes according to the change of torque acting on an o...
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JP2001272286A |
To provide a means that ensures reliability of measuring data by judging the quality of the adhesion state of a sensor, and enables monitoring of structural stress at a remote place, independently of the attachment place of the sensor, a...
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JP2001228041A |
To increase the accuracy of a load-cell calibrating device, in which a load cell for measurement is calibrated by a method, where the load cell for measurement is connected to a calibration arm on the side opposite to the torque-measurin...
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JP3200026B2 |
To provide a sensor from which accurate detected results can be obtained by compensating the erroneous detected results of a faulty sensor element with the detected results of other sensor elements and which has a small size and can meas...
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JP3183565B2 |
PURPOSE: To surely judge the abnormality or failure of a bridge circuit, a regulated power source, a signal cable or a differential amplifier. CONSTITUTION: A bridge circuit B as a transducer part is connected to a stabilizing power sour...
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JP3177681B2 |
To accurately obtain a true value of the time integration value of acted force by allowing a movable part supported by the guide part of a direct- acting bearing to collide with a force sensor, and by measuring a true force acted on the ...
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JP2001153749A |
To safely and accurately inspect a load cell, without manually putting the weights on and off.An inner frame 2 is lifted by a lifter 4 and stopped at a position where it butts a stopper 16 disposed in an upper part of an outer frame 1. A...
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JP3173238B2 |
PURPOSE: To calibrate the output value of a torque sensor with high accuracy by using the line connecting a torque-output characteristic point set through a first process and a torque-output characteristic point measured during a second ...
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JP2001133351A |
To prevent the reduction in calibration precision of a force gauge by an earthquake, disturbance or the like in a torque calibrating apparatus. This torque calibrating apparatus 1 generates a torque by adding weights 31a etc., to the tip...
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JP2001133347A |
To prevent the reduction in calibration precision of a force gauge by an earthquake, disturbance or the like in a force calibrating apparatus. This force calibrating apparatus performs the calibration of the force gauge 1 by working the ...
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JP2001133349A |
To reduce the dispersion of precision depending on the magnitude of the torque applied to a torque meter in a torque calibrating apparatus. This torque calibrating apparatus 1 comprises a lever 10 connected to the measurement shaft of th...
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JP3150500B2 |
PURPOSE: To easily detect secular changes without stopping the operation of a plant, etc. CONSTITUTION: A reference resistor section 80 which does not cause much temperature change is provided near a pressure receiving section 70 and the...
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JP3130106B2 |
PURPOSE: To easily perform stress measurement on a steel pipe on the spot even when the magnetostriction sensitivity of the pipe is unknown. CONSTITUTION: The steel pipe 11 of each pipeline is supported by brackets 12 hung from the ceili...
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JP3130111B2 |
PURPOSE: To obtain a method for easily measuring magnetostrictive sensitivity M in magnetostrictive stress measurement. CONSTITUTION: A steel pipe 12 whose magnetostrictive stress is to be measured is cut along its pipe axis 13 to produc...
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JP2001500624A |
The simplified signal-processing circuit arrangement for processing and evaluating signals indicative of the status of an FSR-foil pressure sensor utilized in a seat-occupancy detection device, makes use of the fact that an application-o...
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