Applications
• For use with Airmar’s line of AT ultrasonic
transducers.
• To aid in designing ultrasonic systems.
• Allows the designer to quickly and easily transmit
and receive echoes.
Features
• Jumper selectable frequency and pulse width for
optimal interfacing.
• Transmit pulse is amplified to 400Vpp via a power
MOSFET and transformer.
• Received echoes can be viewed at X1, X10, X100,
and X1000 amplification.
Operation
1. Connect J4 to a 12V power supply capable of at
least 125mA.
2. Connect the transducer to J5.
3. Aim the transducer directly at a flat reflecting
surface.
4. Connect a scope to one of the four echo
amplification positions on J3.
5. Insert jumpers J1 and J2 at the position
corresponding to the AT model being evaluated.
This sets the initial values for frequency, pulse
width, and pulse rate.
6. Using P2, tune the operating frequency for the
maximum echo.
7. Using P1, adjust the pulse width to give the
desired echo width.
17-143 re
v.
2
3/98
AIRMAR
®
OPERATING INSTRUCTIONS
T1 Development Kit
IMPORTANT
: Please read the instructions completely before proceeding.
Figure 1. T1 development board
transducer (+)
transducer (-)
echo X1
echo X10
echo X100
echo X1000
ground
+12V
P2, frequency
P1, pulse
width adjust
J1, jumper
J5
J3
J2, jumper
J4
adjust
