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The speed of a pneumatic motor is controlled by regulating the flow of intake air with a proportional control valve Paul Berbakov
The speed is varied by throttling the air flow into the motor.
The flux control method is the convectional and the non-convectional method of speed control of an induction motor.
When a pneumatic cylinder chamber is filled with pressurized air and the air-chamber on the other side of the piston is metered-out by a flow control, the movement or speed of the cylinder is more consistent than to meter-in the pressurized air.
there are two methods i.e armature control method and field control method....
How many methods can be used to control the speed of Single Phase Induction Motor? 1.injecting emf method 2.by frequency control method 3.induced voltage method
In armature speed control, speed can be varied only below the rated speed. Also in it voltage drops will be high.
True synchronous mode and self control mode
you can control the speed of a motor by changing frequency, increase or decrease the field winding or by voltage regulation. in these method you can controle the speed of athree phese motor SANDEEP SARKAR
speed of a dc motor can be varied by mainly two methods:- 1)field control method 2)armature control method further , field control method can be divided in 3 parts:- 1)field rhestat control method---speed variation is acomplished by means of a variable resistance inserted in series with shunt field 2)reluctance control method---by changing the reluctance of magnetic circuit by choosing right material.. 3) field voltage control method-requires variable field voltage supply. and armature control method can be divided in 3 parts :- 1)armature resistance control---variable resisitance connected in series with armature 2)shunted armature control. 3)armature voltage control. ------------mrityunjay pandey (kiit university ,btech 2nd year)
speed
Pneumatic valves are used to close valves in high-speed internal combustion engines, pneumatic valves are mostly to help racing engines to get to high speeds.