Overview
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A solenoid valve opens and closes valves using the force of electromagnets.
A valve that controls the amount of fluid flowing has various states of
open and closed. For this reason, this analysis evaluates the response,
such as the speed and position control, of a valve to commands.
Therefore, an analysis that accounts for both the control and solenoid
valve is necessary to measure the response of the valve when it is moved.
This example analyzes the response of a solenoid valve using a control
simulator and the JMAG-RT system. |
Variations in the position of the movable core versus time
| The position of the movable core versus time is indicated in Fig. 1, and
the excitation current versus time is indicated in Fig. 2.The position
of the movable core is moved from 0 mm to 1.5 mm, and then moved from 1.5
mm to 3.0 mm, as indicated in Fig. 1. Even though the movable core moves
1.5 meters in both instances, the method to move the core differs due to
the electromagnetic force, current dependency of the inductance, position,
and the spring constant. A surge occurs the moment the movable core begins
moving, as indicated in Fig. 2.This surge should be investigated further
if it is fairly large, because electrical equipment near the surge could
be damaged. |
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