Air Ultrasonic Ceramic Transducers
Tested under 1Vrms Oscillation Level
328SR160 Impedance
328SR160 Phase
328ST160 Impedance
328ST160 Phase
328ST/R160
Impedance/Phase Angle vs. Frequency
Specification
Sensitivity/Sound Pressure Level
Tested under 10Vrms @30cm
Transmitter
Receiver
32.8±1.0KHz
328ST160 2.0KHz
Bandwidth (-6dB)
328SR160 2.5KHz
Transmitting Sound Pressure Level
115dB min.
at 32.8KHz; 0dB re 0.0002μbar per 10Vrms at 30cm
Receiving Sensitivity
-67dB min.
328ST160
328SR160
Center Frequency
at 32.8KHz 0dB = 1 volt/μbar
Capacitance at 1KHz ±20%
Max. Driving Voltage (cont.)
Total Beam Angle
-6dB
Operation Temperature
Storage Temperature
2600 pF
20Vrms
75° typical
-30 to 70°C
-40 to 80°C
Beam Angle
Tested at 32.8Khz frequency
All specification taken typical at 25C
Closer frequency tolerance can be supplied upon request.
Model available:
1 328ST/R160
Aluminum Housing
Dimensions:
dimensions are in mm
S. Square Enterprise Company Limited
Pro-Wave Electronics Corporation
Http://www.pro-wave.com.tw
; E-mail:
sales@pro-wave.com.tw
; Tel: 886-2-22465101 ; Fax: 886-2-22465105
1 of 2
Air Ultrasonic Ceramic Transducers
328SR160 Receiver
Sensitivity Variation vs. Loaded Resistor
-40
-45
Sensitivity (dB)
-50
-60
-65
-70
-75
-80
1K
3.9K
10K
39K
100K
390K
Loaded Resistor (Ohm)
SPL (dB)
-55
328ST/R160
328ST160 Transmitter
SPL Variation vs. Driving Voltage
130
125
120
115
110
105
100
95
90
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Vrms
Center Frequency Shift vs. Loaded Resistor
5.0
4.0
3.0
2.0
1.0
0.0
-1.0
-2.0
-3.0
-4.0
-5.0
1K
3.9K
10K
39K
100K
390K
Loaded Resistor (Ohm)
Center Frequency Shift vs. Driving Voltage
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-4.0
-4.5
-5.0
-5.5
-6.0
0
2
4
6
8
10
12 14 16 18
Vrms
20 22 24 26
28 30
Fc Variation %
Sensitivity Variation vs. Temperature
-40
-45
Sensitivity (dB)
-50
-60
-65
-70
-75
-80
-40 -30
-20 -10
0
10
20
30
40
50
60
70
80
90
100
Temperature (Degree C)
SPL Variation vs. Temperature
130
125
120
SPL (dB)
115
110
105
100
95
90
-40 -30 -20 -10
0
10
20
30
40
50
60
70
80
90
100
Temperature (Degree C)
-55
Center Frequency Shift vs. Temperature
5.0
4.0
3.0
2.0
1.0
0.0
-1.0
-2.0
-3.0
-4.0
-5.0
-40 -30 -20 -10
0
10
20
30
40
50
60
70
80
90
100
Temperature (Degree C)
Center Frequency Shift vs. Temperature
5.0
4.0
3.0
2.0
1.0
0.0
-1.0
-2.0
-3.0
-4.0
-5.0
-40 -30 -20 -10
0
10
20
30
40
50
60
70
80
90
100
Temperature (Degree C)
Fc Variation %
S. Square Enterprise Company Limited
Pro-Wave Electronics Corporation
Http://www.pro-wave.com.tw
; E-mail:
sales@pro-wave.com.tw
; Tel: 886-2-22465101 ; Fax: 886-2-22465105
2 of 2
Fc Variation %
Fc Variation %
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