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Patent Searching and Data


Matches 901 - 950 out of 3,757

Document Document Title
JP2003083830A
To calculate a speed of response of a pressure transmitting medium regardless of a viscosity, by calculating the speed of response based on temperature data of a capillary tube in consideration of the viscosity of the pressure transmitti...  
JP2003075464A
To provide an optical flow direction sensor that can detect the flowing direction of water, etc., when the water flows by detecting the pressure difference caused by the flow velocity of the water on the upstream side and downstream side...  
JP3384736B2  
JP3384457B2  
JP2003065869A
To provide a small-sized and highly-sensitive pressure detection device capable of detecting the outside pressure accurately over a long period.This package for the pressure detection device comprises a ceramic substrate 1 having plural ...  
JP2003065868A
To provide a small-sized and highly-sensitive pressure detection device capable of detecting the outside pressure accurately.This package for the pressure detection device is equipped with an insulating substrate 1 having a loading part ...  
JP3402354B2
To improve corrosion resistance and durability of a differential pressure-measuring apparatus by providing a main body block, a doughnut- shaped flange part, a cylindrical protecting cover body of tantalum covering cylindrical two buffer...  
JP3379511B2  
JP2003049957A
To provide an opening and closing valve of a connecting passage for a differential pressure detector capable of being easily operated with a simple structure at a low cost. A high pressure side connecting passage 2 and a low pressure sid...  
JP2003049958A
To provide an opening and closing valve of a connecting passage for a differential pressure detector capable of being easily operated with a simple structure at a low cost. A high pressure side connecting passage 2 extending from a high ...  
JP2003042878A
To provide a pressure sensor capable of facilitating manufacture, obtaining satisfactory temperature characteristics and a wide pressure measurement range, and making a package compact. A differential pressure sensor chip 4 is provided w...  
JP2003043059A
To provide an optical flow-direction sensor with which the flow direction of running water flowing through a gutter gate, a gutter pipe or the like can be detected in a state that a gate is closed and which uses an optical fiber. The wat...  
JP2003042881A
To eliminate high-level noise of a communication bus connected to an integrated circuit via a multi-core cable. This process sensor module 100 includes a housing 104 with a first mounting part 106 to be rotation-freely joined to a corres...  
JP2003042879A
To improve sensor measurement accuracy and obtain quick responsivity. This sensor signal processing circuit is provided with a capacitance-type sensor part with characteristics which changes as a whole according to changes in a physical ...  
JP2003505688A
(57) It has a ratio of thickness to larger crossing width than 1 for summary subject heat, the stability of temperature, or a reaction, and is being fixed to annular Mizouchi. The above-mentioned main part part (240) -- the product made ...  
JP3375804B2  
JP3374679B2  
JP2003028741A
To enhance a yield in production of an electrical capacitance sensor device, or to enhance reliability when using it.This electrical capacitance sensor device 100 is provided with an electrostatic capacity type sensor 120 having physical...  
JP2003028742A
To preclude a differential pressure causing a measuring error from being caused when a sensor inside is balanced with the atmospheric pressure, and to prevent dew which is a cause of a trouble from being generated inside a sensor.This ba...  
JP2003503786A
(57) The equipment for defining the fluid flow which passes along a summary pressure regulator is indicated. A pressure regulator is arranged at a fluid channel and has an iris diaphragm element which can move in the inside of a channel....  
JP2003503785A
(57) The equipment for performing diagnosis of a summary pressure regulator is indicated. A pressure regulator is arranged at a fluid channel and has an iris diaphragm element which can move in the inside of a channel. An axis extracts a...  
JP2003021565A
To reduce the area of a lower electrode and to prevent drops in the sensitivity of an electrical capacitance type pressure sensor, which detects an applied pressure on the basis of a change in a capacitance across the lower electrode and...  
JP3388256B2
To provide a measuring device comprising such seal diaphragm part as improved for hydrogen permeation preventive characteristics, by covering the seal diaphragm part and a part of a seal ring with a gold plated film. Related to a seal di...  
JP3386626B2
PURPOSE: To obtain a leakage tester which can inspect an object to be tested for leakage at a high testing pneumatic pressure and, at the same time, can raise the sensitivity of a differential pressure detecting means for detecting leaka...  
JP2003004568A
To prevent flowout of internal gaseous components from a pressure variable space to a reference pressure space and to prevent the flowing of in the atmosphere the reverse direction even when a movable electrode is damaged.The pressure se...  
JP3362197B2  
JP2002544514A
(57) A summary solution means pressure sensor, a pressure transmitter, and the error compensation method in difference pressure measurement are offered. The equipment and the method of the present invention offer the improved error compe...  
JP2002357499A
To provide a differential pressure measuring device of diaphragm seal type which can be easily assembled. This differential pressure measuring device of diaphragm seal type is provided with a diaphragm seal unit having a pressure receivi...  
JP3378105B2
PURPOSE: To detect failure of a check valve based on the flows of a fluid before and after the check valve in a system for supply water directly from a main pipe of city water to a high-rise building or the like. CONSTITUTION: In a syste...  
JP2002323396A
To provide a diaphragm seal type differential pressure measuring instrument with enhanced maintainability by facilitating the replacement of diaphragm seal unit portions.This diaphragm seal type differential pressure measuring instrument...  
JP2002323397A
To provide a diaphragm seal type differential pressure measuring instrument with enhanced maintainability, capable of providing a breakage alarm signal about a liquid-contact diaphragm.This diaphragm seal type differential pressure measu...  
JP2002536674A
(57) In order to test the integrity of the waterproof case (10) for the camera and the similar equipment which are used by summary underwater, the casing (10) equipped with the detector (20) is prepared. The air inside a casing is pressu...  
JP2002310835A
To provide a differential pressure measuring device excellent in measurement accuracy and maintainability.This differential pressure measuring device is provided with a base block and a wetted-surface diaphragm having one surface mounted...  
JP2002535118A
(57) Way summary low-molecular-weight hydrocarbon detects and supervises quality change of the fluid bed of the particulate solid changed into synthesis gas under existence of steam and oxygen, especially the fluid bed of a hot particula...  
JP3335688B2  
JP3329480B2  
JP3353214B2
PURPOSE: To suppress the variation of the zero point of a seal diaphragm and, at the same time, to prevent the breakage of the diaphragm by providing the components of a pressure transmitter by taking the center of gravity of the transmi...  
JP2002277339A
To provide a differential pressure measuring device capable of easily improving corrosion resistance.This differential pressure measuring device equipped with a base block and a wet diaphragm installed on one surface of the base block is...  
JP2002277337A
To adjust sensitivity to be high to the static pressure, and to be low to the differential pressure, and to reduce crosstalks, by installing gages for static pressure detection at the optimum position.A diaphragm 3 is formed on the cente...  
JP2002531908A
(57) The bandwidth good compensation filter for summary process variable transmitters is offered. Solution means Process variable transmitter (10) which supplies the transmitter output showing the process variable (14) perceived by the s...  
JP3325879B2  
JP3349131B2
To provide a released gas measuring device capable of precisely measuring the quantity of released gas of an object to be inspected in a short time. The device is provided with a master chamber 1, a chamber 2 for containing an object 3 t...  
JP2002257660A
To provide a diaphragm seal type differential pressure measuring device wherein re-assembling is easy, the maintenance cost is reduced, and re-assembly causes less variation in characteristics.The diaphragm seal type differential pressur...  
JP3344138B2
PURPOSE: To obtain a semiconductor composite sensor in which each semiconductor region keeps a unique potential by providing a semiconductor region, surrounding more than one piezoresistance, for every piezoresistance and arranging the s...  
JP2002527704A
(57) Including the first portion (2) of a summary, and the second portion (3), this second portion, About surrounding rotation of the axis of a bearing, to the first portion (2), 回動 is possible and into the first portion (2), The bea...  
JP2002236084A
To provide a method and device for measuring the concentration of mixed suspended matter with high measurement accuracy and a wide measuring range, capable of real-time and continuous measurement and is easy to maintain and manage.In the...  
JP2002206980A
To provide a differential pressure measuring apparatus capable of preventing a pressure-receiving diaphragm from being deformed or damaged by washing.The differential pressure measuring apparatus includes a differential pressure capsule ...  
JP2002188972A
To provide a pressure controller having no restriction on an installation space, capable of monitoring the quantity of a pressure change of a pressure source, detecting that the pressure of the pressure source becomes a fixed value or hi...  
JP2002174561A
To improve measurement accuracy of a differential pressure P and to prevent abrupt changes in the output, due to the measurement failure of the capacitance of a sensor, without deterioration in response by using the measurement value of ...  
JP3318804B2
PURPOSE: To obtain high detection precision by making beam welding easier, so that a differential pressure sensor is miniaturized with the use of it, for reduced initial distortion of a diaphragm caused by welding end clamping torque. CO...  

Matches 901 - 950 out of 3,757