Abstract: A valve apparatus is equipped with a diaphragm disposed displaceably in the interior of a body, and which opens and closes a fluid passage by separating away from and being seated on a valve seat, a conductive shaft arranged in a through hole that is formed substantially in the center of the diaphragm, and a grounding member for grounding the conductive shaft. Each of the body and the diaphragm is formed from a non-conductive material, and one end surface of the conductive shaft is exposed to the fluid passage.

Abstract: Provided is an electronic watch capable of surely acquiring a movement start position and a stop position of a hand when the hand moves at high speed such as a case of manual correction by a winding stem or the like, while reducing a load on a CPU. The electronic watch includes: a decode circuit for outputting data corresponding to regions acquired by segmenting a movement range of the hand; and a position information circuit for automatically acquiring region data corresponding to the movement start position of the hand and region data corresponding to the stop position thereof and sending a notification to the CPU when acquiring both the data. In this manner, the CPU can stop until the acquisition of both the data, thereby reducing the load on the CPU.

Abstract: An ultrasonic flow meter is equipped with a housing through which a liquid flows, and a pair of detection units disposed on opposite ends of the housing and including acoustic wave transmitting and receiving units capable of transmitting and receiving acoustic wave signals. Paired connecting plugs are connected respectively to both ends of the housing. In addition, a supply passage of one of the connecting plugs, a conduit of the housing, and a discharge passage of another of the connecting plugs are disposed on a straight line. A liquid supplied to the supply passage flows through a passage of the conduit and to the discharge passage. Consequently, a flow rate of the liquid is measured based on the propagation time of the acoustic wave signals, which are transmitted and received by the acoustic wave transmitting and receiving units.

Abstract: A valve apparatus is equipped with a diaphragm disposed displaceably in the interior of a body, and which opens and closes a fluid passage by separating away from and being seated on a valve seat, a conductive shaft arranged in a through hole that is formed substantially in the center of the diaphragm, and a grounding member for grounding the conductive shaft. Each of the body and the diaphragm is formed from a non-conductive material, and one end surface of the conductive shaft is exposed to the fluid passage.

Abstract: An ultrasonic flow meter is equipped with a housing through which a liquid flows, and a pair of detection units disposed on opposite ends of the housing and including acoustic wave transmitting and receiving units capable of transmitting and receiving acoustic wave signals. Paired connecting plugs are connected respectively to both ends of the housing. In addition, a supply passage of one of the connecting plugs, a conduit of the housing, and a discharge passage of another of the connecting plugs are disposed on a straight line. A liquid supplied to the supply passage flows through a passage of the conduit and to the discharge passage. Consequently, a flow rate of the liquid is measured based on the propagation time of the acoustic wave signals, which are transmitted and received by the acoustic wave transmitting and receiving units.

Abstract: Provided is an electronic watch capable of surely acquiring a movement start position and a stop position of a hand when the hand moves at high speed such as a case of manual correction by a winding stem or the like, while reducing a load on a CPU. The electronic watch includes: a decode circuit for outputting data corresponding to regions acquired by segmenting a movement range of the hand; and a position information circuit for automatically acquiring region data corresponding to the movement start position of the hand and region data corresponding to the stop position thereof and sending a notification to the CPU when acquiring both the data. In this manner, the CPU can stop until the acquisition of both the data, thereby reducing the load on the CPU.

Abstract: A fluid transmitting device includes a side cover connected to a pump impeller and defining a clutch chamber between the side cover and an outer surface of a turbine runner, and a lock-up clutch which includes a clutch piston connected to the turbine runner. The clutch chamber is divided by the clutch piston into an inner oil chamber and an outer oil chamber. The inner oil chamber is divided into primary and secondary inner oil chamber sections provided between the turbine runner and the clutch piston. Upon operation of a lock-up control device, the clutch piston is urged in a clutch switch-on direction, pressure in the primary inner oil chamber section relative to the outer oil chamber is raised and then pressure in the secondary inner oil chamber section is raised relative to the outer oil chamber.

Abstract: The present invention provides an oscillation measuring method comprising: a laser beam emission step S1 for emitting a laser beam to an object to be measured; a return beam reception step S2 for receiving a return beam reflected by the object and having an object Doppler frequency according to a velocity of the object; a self-mixing step S3 for mixing the return beam having the Doppler frequency with another beam emitted upon reception of the return beam and generating a self-frequency according to a resonator change during a time from the emission to the reception of the return beam, so as to generate a beat wave containing the object Doppler frequency superposed with the self-frequency; and an oscillation information output step S4 for outputting the beat wave or information obtained from signal processing of the beat wave as the object oscillation information. This enables to measure a fine oscillation of an object to be measured.

Abstract: A fluid transmitting device includes aside cover connected to a pump impeller and defining a clutch chamber between the side cover and an outer surface of a turbine runner, and a lock-up clutch which includes a clutch piston connected to the turbine runner. The clutch chamber is divided by the clutch piston into an inner oil chamber and an outer oil chamber. In the fluid transmitting device, a dividing means for dividing the inner oil chamber into a primary inner oil chamber section and a secondary inner oil chamber section is provided between the turbine runner and the clutch piston. When a lock-up control device is operated to urge the clutch piston in a clutch switch-on direction, the pressures in the primary inner oil chamber section and the secondary inner oil chamber section are raised in the named order relative to the outer oil chamber. Thus, the connection responsiveness of the lock-up clutch can be enhanced in a simple structure.

Abstract: To enable vibration conditions of a measured object to be measured with high accuracy independently of a laser oscillating wavelength. A vibration measuring means includes a laser resonator for oscillating a laser beam and generating beat waves through self-mixture of a returning beam obtained when the oscillated emitted beam is reflected by the measured object with a beam oscillated and emitted when the returning beam is received, a modulated beat frequency generation controller 8 for providing the beat waves with a modulated beat frequency that is higher than a Doppler frequency that is superposed on the returning beam while varying depending on a speed of the measured object, and a signal processor 21 for executing signal processing on the beat waves generated by the self-mixture in the laser resonator and outputting a result of the processing as vibration information.

Abstract: An insert section of an insert member is inserted into a tube member in a state in which the insert member is detached from a recess to form a diametrally expanded section on the tube member. Subsequently, the insert member is fitted to the recess to install the tube member to the recess. At this stage, an outer circumferential surface of an expanded section of the insert member tightly contacts with an inner circumferential surface of the recess to effect the sealing function. Subsequently, a tapered section and an outer circumferential surface of the tube member are resin-welded by using a welding material. Thus, the tube member is prevented from disengagement from a body.

Abstract: When an insert member is inserted into a fluid passage of a fluid tube, the fluid tube is diametrically enlarged by a tapered section. When a female thread of a nut member is meshed with a male thread of a main body section, first and second edge sections are engaged so that they bite into the outer circumference of the fluid tube diametrally enlarged by the tapered section. Accordingly, various fluid tubes, which are identical in outer diameter size but which are slightly different in wall thickness, are reliably prevented from disengagement from a tube joint.

Abstract: The present invention provides a vibration measurement method and apparatus utilizing a self-mixing type laser Doppler vibrator meter. The vibration measurement method includes steps of: oscillating a laser beam of a predetermined wavelength and applying the laser beam to an object to be measured; mixing the reflected laser beam from the object and the oscillated laser beam for outputting a beat wave; calculating ratio of a beat wave amplitude for the turning point of the vibrating object, with respect to a predetermined reference amplitude; and calculating a displacement amount for the turning point of the vibrating object, according to the calculated ratio. This enables to detect the vibration of the object to be measured, with a high accuracy.

Abstract: The present invention discloses a vibration measurement method and apparatus using a self-mixing type laser Doppler vibration meter. The vibration measurement method according to the present invention comprises: an inclination value calculation step S3 for calculating an ascending inclination and a descending inclination for each beat wave; and a turning point identification step S4 for identifying the turning point of a vibrating object according to the inclination change along the time axis.

Abstract: To enable vibration conditions of a measured object to be measured with high accuracy independently of a laser oscillating wavelength. A vibration measuring means includes a laser resonator for oscillating a laser beam and generating beat waves through self-mixture of a returning beam obtained when the oscillated emitted beam is reflected by the measured object with a beam oscillated and emitted when the returning beam is received, a modulated beat frequency generation controller 8 for providing the beat waves with a modulated beat frequency that is higher than a Doppler frequency that is superposed on the returning beam while varying depending on a speed of the measured object, and a signal processor 21 for executing signal processing on the beat waves generated by the self-mixture in the laser resonator and outputting a result of the processing as vibration information.

Abstract: The present invention provides a vibration measurement method and apparatus capable of accurately measuring displacement even if the displacement is very small. The vibration measurement method according to the present invention comprises: a laser beam application step (step S1) for applying a laser beam of a first wavelength to an object to be measured; a beat wave generation step (step S2) for mixing a laser beam of a second wavelength which is different from the first wavelength and the return beam reflected from the object to be measured; and a vibration information output step (step S3) for outputting the beat wave thus generated as a vibration information of the object to be measured.

Abstract: The present invention provides an oscillation measuring method comprising: a laser beam emission step S1 for emitting a laser beam to an object to be measured; a return beam reception step S2 for receiving a return beam reflected by the object and having an object Doppler frequency according to a velocity of the object; a self-mixing step S3 for mixing the return beam having the Doppler frequency with another beam emitted upon reception of the return beam and generating a self-frequency according to a resonator change during a time from the emission to the reception of the return beam, so as to generate a beat wave containing the object Doppler frequency superposed with the self-frequency; and an oscillation information output step S4 for outputting the beat wave or information obtained from signal processing of the beat wave as the object oscillation information. This enables to measure a fine oscillation of an object to be measured.

Abstract: A tube joint is described which facilitates the connection of tubes having different internal diameters or calibers, simply by exchanging a nut member, an insert bush and a collar member for another nut member, another insert bush and another collar member, respectively, having sizes which are suitable for the tube which is to be connected to the tube joint, and in a state in which the joint body is connected to a fluid pressure apparatus.

Abstract: A suck back valve comprises an ON/OFF valve, a suck back mechanism, a first sensor for detecting a displacement amount of a first diaphragm of the ON/OFF valve, and a second sensor for detecting a displacement amount of a second diaphragm corresponding to a suction amount of a coating liquid. The suck back valve further comprises a control unit for feedback-controlling the valve displacement speed of the ON/OFF valve and the suction amount of the coating liquid on the basis of detection signals obtained by the first sensor and the second sensor respectively.