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LEOI-38 Experimental System for PZT Characterization
Description
Based on a Michelson interferometer, LEOI-38 is designed to study the piezoelectric characteristics of a piezoelectric transducer (PZT) so that the intensity distribution of interference can be obtained. Through this system, students can further understand the principle of the Michelson interferometer, acknowledge the characteristics of the PZT, and familiarize with the measurement technique of micro displacement.
Feathure
Familiarize with principle of Michelson interferometer
Observe interference phenomenon of Michelson interferometer
Measure relationship between expansion and driving voltage of PZT
Calculate related characteristics of PZT
Include He-Ne laser with power supply
Application
a. Construct a Michelson interferometer
b. Characterize a PZT
c. Calculate the piezoelectric coefficient of a PZT
Specification
|
He-Ne Laser |
632.8 nm |
|
Min MovementReadingof Movable Mirror |
0.0005 mm |
|
Flatness of Splitter and Compensator |
≤λ/20 |
|
DrivingVoltageRangeof PZT |
10 V ~ 220 V |
Part list
|
Description |
Qty |
|
Michelson Interferometer System |
1 |
|
PZT Component |
1 |
|
PZT Driver |
1 |
|
a. He-Ne laser |
h. F-P movable mirror |
|
b. Side stage |
i. Rotation arm |
|
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c. Beam expander |
j. Preset micrometer |
|
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d. Fixed mirror w/ PZT |
k. Movable mirror |
|
|
e. Beam splitter |
l. Fine micrometer |
|
|
f. Compensator |
m. tage for movable mirror |
|
|
g. F-P fixed mirror |
n .White screen /Gauge holder |
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