Electromachanical Energy Lab Graduate Institute of Precision Engineering National Chung Hsing University

Standard Operation Procedures

Ultrasonic

Impedance measurement of the piezoelectric transducer	Ultrasonic horn, Linear motor, Ultrasonic generator, and Labview
Electrical tests
Probe station
Mechanical tests
Micro load cell	Tensile test by load cell, linear motor and fixture	Frequency sweep by APS shaker with two laser displacement sensors to measure shaker and device vibrations
Fabrication
Ni electroplating	Cu electroplating	Glue PZT to substrate by screen printing

　

　

Glue PZT to substrate by screen printing by Tam Nguyen (April 11, 2012)

l         Screen printing the silver-based conductive epoxy on the surface of the substrate. ²       Cut a retangular hole on the thin film with dimension of PZT ²       Put the horn at the desired position on the screen printing device ²       Spread a thin layer of the conductive epoxy on the horn’s surface l         Use tweezer put the back electrode of PZT plate onto the epoxy layer. l         Adjust PZT to get the uniform thickness of conductive epoxy. l         Use the hot air station, the temperature air at 120oC for the fastest curing time (10 minutes). l        Then bond the fine electrical wires on the electrodes of the PZT using conductive epoxy.

　

　

Micro load cell by Steven Chen (April 11, 2012)

1.Connect Load Cell and DBU-120A 2.Connect DBU-120A and computer 3.Star Measurement 4.SETUP parameter of the program (1.)Exciter 2V                              (2.)Input 350 ohm                              (3.)Range 10k/m                              (4.)Filter Flat                              (5.)Scaler <1.> Unit N(mN)                              <2.> Data Calibration Factor 1.801e-2 Offset 0                                   * Select Meas, Balance and Master 5.On computer Monitor see the measurement result             Rec record the measurement result             Set Recording save result 6.Click Exit to finishing

　

　

　

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