The document describes a continuous air control valve using particle excitation. The valve consists of an orifice plate, a PZT vibrator, and iron particles. It works by using air pressure to carry and deposit the iron particles over the orifice plate, normally sealing the airflow. Applying vibration from the PZT vibrator removes the particles from the orifice, allowing air to flow. The document discusses the working principle, design analysis, experimental evaluation of flow rate control, and conclusions.

1. CONTINUOUS AIR CONTROL
USING PARTICLE EXCITAION
VALVE
REPRESENTED BY:-
LIPSAACHARYA
REGD NO.:-1151015004
BRANCH:- EIE (C)

2. CONTENT :-
 INTRODUCTION
 WORKING PRINCIPLE AND DRIVE CONDITION
 DESIGN AND ANALYSIS
 BASIC CALACTERLISTIC
 EXPERIMENTAL EVALUATION OF FLOW-RATE
 CONTROLLABILITY
 CONCLUSION
 REFERENCES

3. INTRODUCTION:-
 control pneumatic actuators, miniaturization and
high controllability are demanded for flow control
valve.
 Because pneumatic actuator control is not easy in
consequence of air compressibility, these control
system tend to be large.

4. WORKING PRINCIPLE AND DRIVE
CONDITION:-
 flow-control valve consists of an orifice plate, a PZT vibrator, and
iron particles.
 By supplying air pressure, the air flow carries and deposits
particles over the orifice. This valve is normally closed because
particles seal the air flow.
 When air flow carries and deposits particles over the orifice, the
pressing force of the particles is calculated using the following
equation.
F = pir2P + mg
 The dynamic force of the particles applied by the PZT vibrator
depends on the particle mass, displacement, and input
frequency, which is expressed by
F2
 particles, and is the angular frequency when the driving
frequency f is defined as = 2f.

5. CONT…….