Air Ultrasonic Ceramic Transducers - Prowave Electronics Corp.
Air Ultrasonic Ceramic Transducers - Prowave Electronics Corp.
Air Ultrasonic Ceramic Transducers - Prowave Electronics Corp.
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<strong>Air</strong> <strong>Ultrasonic</strong> <strong>Ceramic</strong> <strong>Transducers</strong> 328ST/R180<br />
328SR180 Receiver<br />
Sensitivity Variation vs. Loaded Resistor<br />
Sensitivity (dB)<br />
Center Frequency Shift vs. Loaded Resistor<br />
Fc Variation %<br />
Sensitivity Variation vs. Temperature<br />
Sensitivity (dB)<br />
-40<br />
-45<br />
-50<br />
-55<br />
-60<br />
-65<br />
-70<br />
-75<br />
-80<br />
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100<br />
Temperature (Degree C)<br />
Center Frequency Shift vs. Temperature<br />
Fc Variation %<br />
-40<br />
-45<br />
-50<br />
-55<br />
-60<br />
-65<br />
-70<br />
-75<br />
-80<br />
1K 3.9K 10K 39K 100K 390K<br />
Loaded Resistor (Ohm)<br />
5.0<br />
4.0<br />
3.0<br />
2.0<br />
1.0<br />
0.0<br />
-1.0<br />
-2.0<br />
-3.0<br />
-4.0<br />
-5.0<br />
1K 3.9K 10K 39K 100K 390K<br />
Loaded Resistor (Ohm)<br />
5.0<br />
4.0<br />
3.0<br />
2.0<br />
1.0<br />
0.0<br />
-1.0<br />
-2.0<br />
-3.0<br />
-4.0<br />
-5.0<br />
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100<br />
Temperature (Degree C)<br />
328ST180 Transmitter<br />
SPL Variation vs. Driving Voltage<br />
SPL (dB)<br />
130<br />
125<br />
120<br />
115<br />
110<br />
105<br />
100<br />
95<br />
90<br />
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30<br />
Vrms<br />
Center Frequency Shift vs. Driving Voltage<br />
Fc Variation %<br />
0.0<br />
-0.5<br />
-1.0<br />
-1.5<br />
-2.0<br />
-2.5<br />
-3.0<br />
-3.5<br />
-4.0<br />
-4.5<br />
-5.0<br />
-5.5<br />
-6.0<br />
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30<br />
Vrms<br />
SPL Variation vs. Temperature<br />
SPL (dB)<br />
130<br />
125<br />
120<br />
115<br />
110<br />
105<br />
100<br />
95<br />
90<br />
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100<br />
Temperature (Degree C)<br />
Center Frequency Shift vs. Temperature<br />
Fc Variation %<br />
5.0<br />
4.0<br />
3.0<br />
2.0<br />
1.0<br />
0.0<br />
-1.0<br />
-2.0<br />
-3.0<br />
-4.0<br />
-5.0<br />
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100<br />
Temperature (Degree C)