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Patent Searching and Data


Matches 601 - 650 out of 3,728

Document Document Title
JP2009236764A
To prevent excessive displacement of a diaphragm when a large differential pressure is applied; to measure over a wide differential pressure range; and to measure with high resolution in a low differential pressure range.This diaphragm 1...  
JP2009236761A
To reduce a damage caused by contact with a reaction force member on the center part of a diaphragm in a differential pressure sensor, and to improve low sensitivity in a range having a fine differential pressure.This diaphragm 112 is eq...  
JP4340883B2  
JP4336066B2  
JP2009216396A
To provide a pneumatic pressure measuring method and a pneumatic pressure measuring instrument, for detecting precisely fluctuation of pneumatic pressure within a short time.A low-pass filter with a cut-off frequency of 0.1 Hz or less is...  
JP2009204485A
To provide a detector capable of suppressing a linearity error or hysteresis in detection, and improving performance.This detector is equipped with a diaphragm 3 provided inside a case 2, to be displaced by an introduced pressure; a rota...  
JP4327423B2  
JP4328929B2  
JP2009198337A
To provide a sensor device capable of preventing its destructive withstand pressure from lowering, while enhancing the sensitivity.The sensor device 1 comprises a frame part 10, a movable part 20 and a carbon nanotube element 31 bridging...  
JP4325117B2  
JP4320963B2  
JP2009186221A
To provide a differential pressure measuring apparatus provided with a diaphragm seal, which facilitate replacement of only a diaphragm seal part.The differential pressure measuring apparatus provided with a diaphragm seal that connects ...  
JP2009186467A
To provide a differential fluid pressure sensor capable of being easily oriented so that a surface of a diaphragm is set orthogonal to the direction of gravity.This differential fluid pressure sensor has an upper housing 12 that mounts a...  
JP2009180643A
To cope with a request of high-speed responsiveness.When a damping time constant D is changed into a state of D=0, a sampling period Ts is automatically changed from 100 ms to 50 ms, and a sampling time ts is automatically changed from 6...  
JP2009180644A
To obtain each stable A/D conversion value from both A/D converters, when sampling an A/D conversion value in a short period from one A/D converter and sampling an A/D conversion value in a long period from the other A/D converter by usi...  
JP2009180621A
To attain a differential pressure measuring device for being downsized and further having improved electrical insulation and temperature characteristics.The differential pressure measuring device includes a sensor part fixed to a sensor ...  
JP4296728B2  
JP4291049B2  
JP2009524823A  
JP2009133755A
To protect more surely a battery stored in a field device.In a differential pressure transmitter D1 operated by the power of the battery B, equipped with a measuring circuit board 11 for measuring a prescribed process quantity relative t...  
JP4278549B2  
JP2009128329A
To provide a pressure measuring instrument improved in a difference of pressure transmission speeds of high pressure side and the low pressure side when a static pressure is varied.The pressure measurement instrument includes:a first pre...  
JP4272525B2  
JP2009520206A  
JP2009085769A
To provide an apparatus for measuring fluid inside a pipe line and a clogging diagnosing system, capable of accurately diagnosing clogging in a connecting pipe at all times, without being affected by process flow rates or process states....  
JP4249891B2  
JP4248352B2  
JP4240267B2  
JP2009053083A
To provide a pressure sensing device and a pressure sensing system capable of detecting clogging of a connecting pipe, at low cost and at a high sensitivity.A differential-pressure/pressure transmitter 2 as a pressure detector, is provid...  
JP2009025240A
To provide an optical differential pressure measuring method and an optical differential pressure sensor having large sensitivity to fine pressure variation and capable of precisely measuring the fine pressure variation on a surface of a...  
JP2009019988A
To provide a pressure gauge reducing the weight and the manufacturing cost.The pressure gauge the flange of which is installed to the main body capsule comprises: a female screw provided in the main body capsule to install a high-pressur...  
JP4216628B2  
JP2008304245A
To provide a pressure sensor capable of reducing the influence, when different influences due to external stresses, such as, vibrations received by a plurality of sensor chips having each protective member provided on a pressure-receivin...  
JP2008292217A
To provide a diaphragm seal type pressure measuring device which reduces leakage amounts of liquids put inside a first and a second connecting pipe and sealed, when the first and second connecting pipes are separated at an attaching/deta...  
JP2008292185A
To achieve a differential pressure transmitter capable of preventing breaking of a differential pressure sensor due to sudden change of a differential pressure.This differential pressure transmitter is provided with a differential pressu...  
JP2008542726A
A pressure sensor assembly object (56) for perceiving pressure of process fluid contains a sensor body (220) which has the cave (132, 134) formed in a sensor body, in order to connect with process fluid pressure. A flexible diaphragm (10...  
JP2008542717A
A pressure sensor (10) containing a sensor body (27) which is formed with a compressible material, and which can be changed. A distortion sensor (96) is laid underground into a sensor body which can be changed, and it has an electrical p...  
JP2008286802A
To provide pressure sensing diaphragms, formed by the smooth surface (12), which deflect in response to local pressures against the surface to enable the measurement of unperturbed local pressures of materials sheared between plates and ...  
JP4186824B2  
JP4177047B2  
JP2008256370A
To provide a differential pressure monitoring panel that indicates a differential pressure meter accurate and stabilizing the indication, even immediately after switching operation, despite the case of employing only a single differentia...  
JP4163880B2  
JP4159991B2  
JP2008216114A
To provide a pressure sensor capable of detecting not only a differential pressure but also an absolute pressure.The pressure sensor acquires a differential pressure of each pressure introduced to each pressure introduction port 11, 12 b...  
JP2008209385A
To provide a semiconductor sensor for spreading the range of fluid and flow rate to be measured, by preventing corrosion due to the penetration of fluid and damage due to the pressure of fluid.The semiconductor sensor 1 includes at least...  
JP2008196960A
To provide a semiconductor sensor capable of measuring a differential pressure between two spaces.This semiconductor sensor is equipped with a semiconductor substrate and a pressure-receiving member bonded to the semiconductor substrate....  
JP2008185388A
To provide a fine differential pressure gage hardly influenced by a temperature change inside/outside an apparatus, capable adjusting a zero point more accurately with a simple structure, and resultantly measuring a fine differential pre...  
JP4124967B2  
JP4112840B2  
JP4103028B2  

Matches 601 - 650 out of 3,728