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JPH03249401A |
PURPOSE: To achieve high speed and high accuracy at the time of positioning for a certain aimed position by using estimated or measured disturbance force to an operational part so as to perform disturbance compensation, and by integratin...
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JPH03249409A |
PURPOSE: To receive a control signal between each actuator so as to expedite and ensure energizing/extinguishing control by providing a means that can be increased or decreased on a network, or a branch or a connection device that can be...
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JPH03249402A |
PURPOSE: To achieve high speed and high accuracy at the time of positioning for a certain aimed position by using estimated or measured disturbance to an operational part so as to perform compensation of feed-forward disturbance, and by ...
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JPH03249407A |
PURPOSE: To expedite and ensure energizing/extinguishing by providing a star- formed, or looped distributed network means that is worked based on a data link protocol in which a specified element uses predetermined information through th...
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JPH03249408A |
PURPOSE: To expedite and ensure energizing/extinguishing control by performing local distributed control constantly or as required with a calculator provided on a distributed control device (group) of distributed network system that inte...
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JPH03246196A |
PURPOSE: To compensate the stability of a system by providing a moving average filter which averages the deviation signals to an actuator every cycle of a rotary wing or every time determined by dividing one cycle by the number of the bl...
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JPH03246195A |
PURPOSE: To secure stability by providing a moving average filter which averages the deviation signals to an actuator every specified time which is nearly equal to the vibration cycle at the time of the resonance of an actuator system or...
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JPH03244803A |
PURPOSE: To perform positioning at high speed and with high precision by arranging two air valves at the inflow and effluence ports of two air chambers of an actuator, inputting the position, speed and aimed value of an operation part in...
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JPH03244804A |
PURPOSE: To reduce shock in the reversal of a fluid cylinder by carrying out pressure feedback so that each pressing force on the head side and rod side of the fluid cylinder is balanced, and generating the pressure damping effect. CONST...
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JPH03239652A |
PURPOSE: To sufficiently avoid pulsation in a brake pedal by providing a first 2/2-way valve and a second 2/2-way valve on a valve device connected to it in parallel. CONSTITUTION: If a wheel related to a wheel brake 27 is on the verge o...
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JPH03239801A |
PURPOSE: To control a position with high accuracy and a simple structure by introducing pressure oil from respective hydraulic pumps to two supply/discharge ports for driving a piston of an actuator, and controlling the set pressure of r...
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JPH03100601U |
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JPH0348657Y2 |
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JPH0364726B2 |
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JPH0364723B2 |
A hydraulic pivot drive comprising a rotary-piston hydraulic cylinder and control device for maintaining the pressure difference between pressure chambers defined by the rotary vane and at least one radial wall of the cylinder housing re...
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JPH0396403U |
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JPH0396402U |
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JPH03223503A |
PURPOSE: To prevent careless operation of an actuator by constituting a servo motor with a computing part for comparing the position signal from the actuator with a position command signal, an integrator for correcting a control signal t...
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JPH03223504A |
PURPOSE: To smoothly perform inversion of an actuator without suffering from outward influence by providing a circuit for correcting a control signal based on a pressure difference signal from a pressure passage leading to the actuator, ...
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JPH0346245Y2 |
A servomechanism in which the mutual angular position of a threaded spindle relative to a tap is adjustable by a stepper motor wherein the unit of the threaded spindle and tap is connected directly or indirectly with a hydraulic working ...
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JPH0342244Y2 |
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JPH0341124Y2 |
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JPH0353481B2 |
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JPH03186601A |
PURPOSE: To adjust the rigidity of an actuator so as to prevent an unnecessary stress from acting upon a controlled object, by providing a pressure receiving member which is displaced in accordance with a differential pressure between tw...
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JPH03179501A |
PURPOSE:To easily and quickly control a hydraulic servo system with higher accuracy by providing a simulation circuit which simulates the ideal dynamic characteristic of the servo system, a feedback control means, a hunting detection mea...
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JPH0350128B2 |
An electro-hydraulic servo valve system comprising a two-stage spool type servo valve including a first stage (20) comprising an electrical force motor (12) and a second stage (21) including a spool (28) for controlling flow to an actuat...
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JPH0372102U |
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JPH0347230B2 |
The invention relates to a hydrostatic steering control device of the type having two motor ports connectable to a servomotor and a metering unit for metering the flow of fluid to or from the servomotor in accordance with the rotational ...
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JPH0346681B2 |
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JPH0333215Y2 |
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JPH0328408Y2 |
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JPH0362201U |
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JPH03139464A |
PURPOSE: To simplify a controller assembly and suppress the occurrence of noise by forming an outer region of a second sealing seat into a taper shape in the direction of a poppet valve member and extending it onto a passage and an air g...
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JPH0338441B2 |
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JPH0338442B2 |
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JPH03133303A |
PURPOSE: To suppress the shock in the start of lifting and the stop at the neutral position by setting the land length of a main spool in such a manner as to connect an oil-charging and discharging port to a pump port and a pilot oil- di...
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JPH03129103A |
PURPOSE: To improve reliability of a servo actuator by regulating its stiffness through mechanically amplifying displacement of a piston rod of the servo actuator and through feeding back this displacement to a position detecting device....
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JPH03129102A |
PURPOSE: To improve accuracy and reliability or an actuator by compensating a displacement error of an output plunger due to load through providing a circuit which senses displacement of the output plunger of the actuator, and also by de...
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JPH0336401B2 |
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JPH0335516B2 |
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JPH0335521B2 |
A positioner-actuator control system includes a pair of relays and a pivotally mounted beam for operation thereof in response to a pneumatic control signal. A summing beam has forces applied to it from an input signal, a controlled devic...
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JPH0335522B2 |
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JPH0335517B2 |
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JPH0353601U |
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JPH03121387A |
PURPOSE: To eliminate a necessity of a means such as an injection pipe so as to prevent motion due to wear by introducing hydraulic oil in one system of oil passage when a slide coil moves, and operating a spool in one direction. CONSTIT...
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JPH0333921B2 |
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JPH03113102A |
PURPOSE: To improve reliability and to automatically compensate the dielectric characteristic change of control oil by detecting the position of a piston by a radio frequency generator, a stub antenna connected to the radio frequency gen...
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JPH03113101A |
PURPOSE: To obtain an actuator, which is free from force-fight and which has a rigidity adjusting function, by connecting either one of a pair of piston rods, which interpose a spring therein and which can slide on each other in a sealed...
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JPH0330723B2 |
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JPH0328543B2 |
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