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JP2015025737A |
To approximate the characteristic of a pressure sensor using a combination of as few approximate equations as possible, as well as suppress an error in the approximation.The present invention comprises: a characteristic measurement step ...
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JP5661543B2 |
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JP2014238294A |
To provide a sensor evaluation apparatus capable of generating high-pressure impact force at high probability and with a narrow range of variation.The sensor evaluation apparatus includes a sensor evaluation part 2 composed of a body 7, ...
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JP2014215129A |
To provide a pressure measuring device capable of measuring a non-steady and fine pressure fluctuation of the surface of a test sample with sufficient accuracy.A pressure measuring device includes: a tube 11 fixable along a surface of a ...
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JP5624285B2 |
A pressure sensor and method wherein a resonant pressure transducer has a frequency F which changed depending on the applied pressure P and the temperature T. A temperature sensor measures the temperature T. A memory includes stored ther...
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JP5582003B2 |
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JP5524055B2 |
Calibrating a measuring cell arrangement having a diaphragm vacuum measuring cell having a programmable heater for heating the diaphragm vacuum measuring cell to a constant presettable temperature. The heater encompasses the measuring ce...
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JP2014106097A |
To accurately detect impulse line blockage of a pressure detector for measuring pressure of a fluid via an impulse line, in consideration of the change of a plant gain, in a facility which determines a control output in accordance with a...
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JP2014098559A |
To determine on line appropriate replacement timing for differential pressure/pressure composite sensors.A secondary side pressure sensor 5 is provided separately from a differential pressure/pressure composite sensor 4. Every time a cer...
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JP2014098560A |
To determine on line with a single evaluation indicator whether a differential pressure/pressure composite sensor is normal or abnormal.A secondary side pressure sensor 5 is provided separately from a differential pressure/pressure compo...
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JP5499665B2 |
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JP2014074652A |
To provide a measuring apparatus capable of measuring temperature characteristics of a pressure sensor package for absolute pressure without using a sealed pressure vessel.A measuring apparatus comprises: a vessel 101 containing a pressu...
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JP5441845B2 |
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JP2014032095A |
To provide a calibration device that makes it possible to certainly match an applying pressure with a target value during calibration of a pressure transmitter, simplifies operations, automates data management and determination of life o...
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JP5420127B2 |
An accelerometer (305) for measuring seismic data. The accelerometer (305) includes an integrated vent hole for use during a vacuum sealing process and a balanced metal pattern for reducing cap wafer bowing. The accelerometer (305) also ...
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JP5398990B2 |
A diaphragm diagnostic system for use in an industrial field device has a diaphragm and a diagnostic feature. The diaphragm is configured to couple the field device to a process fluid and has a plurality of layers. A first layer of the p...
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JP5398304B2 |
This invention relates generally to apparatus and methods for the calibration of implanted pressure transducers. It is an object of several embodiments of the present invention to provide apparatus and methods for the calibration of one ...
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JP2013253968A |
To provide a test apparatus capable of providing reliable tests of electronic components under a transformation condition, reducing test cost of the electronic components under the transformation condition and achieving flexible applicat...
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JP5370329B2 |
The apparatus has detector that outputs the detection signal by converting the to-be-detected physical quantity. A detector outputs a diagnostic signal by converting the physical quantity. A comparison section determines whether an abnor...
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JP5357734B2 |
To reduce the effect on a reference pressure gauge and a pressure gauge to be calibrated by avoiding large pressure variation in the pressure applied to the reference pressure gauge and the pressure gauge to be calibrated when the supply...
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JP5335768B2 |
The invention concerns a method for determining a calibration value indicating the extent of loss of calibration of a group of three or more sensors in a sensor network, the method involving receiving a plurality of data values captured ...
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JP5329757B2 |
A method and apparatus integrates differential pressure measurements and absolute pressure measurements to provide a continuous absolute pressure profile over a wide range of pressures on a single integrated scale. The absolute pressure ...
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JP2013217764A |
To provide a pressure gauge inspection apparatus capable of simply inspecting an air gauge and a gauge of an air charging apparatus only by an inspection apparatus body without using a dedicated compressor, and being compact and convenie...
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JP5316219B2 |
To provide a dynamic characteristics measuring device for supplying a precision voltage to a plurality of specimens and measuring them. This dynamic characteristics measuring device includes a precision power source (10) for supplying a ...
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JP5309277B2 |
A valve assembly (1) for measuring differential pressures in a fluid system where the valve assembly includes a differential pressure sensor (12) for registration of differential pressures, a first cavity (22) with a calibrating cone (10...
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JP5309276B2 |
A valve assembly (1) included in a system for measuring differential pressures in a fluid system and where the valve assembly (1) includes a valve body (7) with an inlet (13) and an outlet (14) for connection to the fluid system, ducts (...
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JP5311577B2 |
To provide an inspection device of a pressure sensor, capable of raising the temperature of the pressure sensor which is an inspection object up to a prescribed temperature in a short time, and measuring the temperature characteristics o...
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JP2013184484A |
To reduce cost, weight and an increase in volume while preventing a function loss caused by a transient communication abnormality in a sensor abnormality detection device connected to a microcomputer from a sensor via a power supply IC.I...
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JP5271513B2 |
To solve the problem that, when inspecting a pressure gage by applying actually a pressure to the pressure gage and by comparing the pressure with a pressure value shown by a pressure gage for calibration, if a flange is installed on the...
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JP5217045B2 |
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JP5203222B2 |
A diagnostic system for a pressure sensor having a cavity configured to receive on applied pressure is provided. The cavity has a first and a second wall. A deflectable diaphragm is positioned in the cavity and configured to form a first...
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JP2013101027A |
To reduce an influence of coefficient values of the respective terms in a correction formula to output by a rounding error in a sensor which calibrates sensor output by using a high-order correction formula having a plurality of terms.A ...
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JP5198725B2 |
A system and method for non-invasive pressure sensing are disclosed. One embodiment of the system is an assembly comprising: a plurality of coherent light sources (12), wherein the plurality of coherent light sources are located in a fix...
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JP2013068539A |
To provide a pressure detector capable of more accurately determining the state of a pressure detection unit.A pressure detector 101 includes: a pressure-sensitive resistor 31 for outputting a signal based on an applied load; a transmiss...
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JP5181648B2 |
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JP5175002B2 |
A system and method for detecting and isolating faults in pressure ports (2) and pressure transducers (3) of a pressure sensing system are disclosed. The system comprises a set of pressure ports (2) flushed to a nose cap (1) of a space v...
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JP5166884B2 |
A method and device for detecting, on the ground, the obstruction of a pressure tap of a static pressure sensor of an aircraft. The device includes a pressure sensor that measures the pressure inside a probe and a heating system for heat...
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JP2013053964A |
To present a combination method of a physical quantity sensor pair satisfying a measurement specification of an output difference.A method for selecting a sensor pair of a dual physical quantity sensor includes the steps for: finding a m...
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JP2013040914A |
To provide a method for calibrating a measurement error caused by change of situation of a sensor, particularly a method for easy calibration of a cold-cathode type ionization vacuum gauge at a production field.Displays of a measuring in...
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JP2013040913A |
To provide a method for calibrating a measurement error caused by change of situation of a sensor, particularly a method for easy calibration of a cold-cathode type ionization vacuum gauge at a production field.When displays of a measuri...
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JP2013019863A |
To achieve calibration with high accuracy when performing calibration of temperature characteristics of a plurality of pieces of work.In a system for calibrating temperature characteristics, a plurality of pieces of work (WG1-WGn) having...
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JP2013019860A |
To achieve calibration with high accuracy when performing calibration of temperature characteristics of a plurality of pieces of work.In a system for calibrating temperature characteristics, a plurality of pieces of work (WG1-WGn) having...
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JP2013019859A |
To shorten the time required for the whole calibration work on temperature characteristics of a plurality of pieces of work.In a method for calibrating temperature characteristics, a plurality of pieces of work (WG1-WGn) having specific ...
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JP5110878B2 |
A pressure sensor of a process device, is characterized by applying a plurality of pressures to the process sensor. Outputs of the plurality of pressures are received. A compensation relationship is determined based upon the pressure sen...
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JP5102819B2 |
Systems and methods for digitally controlling sensors. In one embodiment, a digital controller for a capacitance diaphragm gauge is embedded in a digital signal processor (DSP). The controller receives digitized input from a sensor AFE v...
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JP2012247296A |
To provide a calibration system for differential pressure measuring instrument in which a differential pressure measuring instrument can be calibrated efficiently.A calibration system 40 for a differential pressure measuring instrument 3...
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JP5092930B2 |
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JP5078196B2 |
An accelerometer (305) for measuring seismic data. The accelerometer (305) includes an integrated vent hole for use during a vacuum sealing process and a balanced metal pattern for reducing cap wafer bowing. The accelerometer (305) also ...
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JP2012225684A |
To arbitrarily set pressure amplitude and a pressure change rate of pulsation and to highly accurately generate the pulsation in an apparatus for evaluating durability by applying a test liquid of a pulsation state to a pressure apparatu...
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JP5073502B2 |
A control system coupled to a pressure sensor calibrates the pressure sensor. The control system may measure a plurality of capacitance values at a plurality of corresponding applied voltages to compare the values with a first calibratio...
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