Telephone +44 (0)1493 602602
Fax +44 (0)1493 665111
Email:sales@midassensors.com
www.midassensors.com
Electra House, 32 Southtown Road
Great Yarmouth, Norfolk
NR31 0DU, England
PROWAVE
Air Ultrasonic Ceramic Transducers
400ST/R160
Dimensions: dimensions are in mm
Impedance/Phase Angle vs. Frequency
Specification
90
75
60
45
30
15
0
-15
-30
-45
-60
-75
-90
400ST160
Transmitter
400SR160
Receiver
Center Frequency
40.0±1.0Khz
Bandwidth (-6dB) 400ST160
2.0Khz
Max. Driving Voltage (cont.)
1000
35
36
37
38
39
40
41
42
43
44
45
Frequency (Khz)
2.5Khz
120dB min.
Sensitivity/Sound Pressure Level
Tested under 10Vrms @30cm
-65dB min.
2400 pF
20Vrms
-50
130
-55
125
-60
120
-65
115
-70
110
-75
105
-80
100
-85
95
-90
-6dB
Total Beam Angle
Operation Temperature
-30 to 80°C
Storage Temperature
-40 to 85°C
55° typical
All specification taken typical at 25°C
Closer frequency tolerance can be supplied
upon request.
Models available:
1 400ST/R160
2 400ST/R16B
2 400ST/R10P
3 400ST/R16F
Aluminum Housing
Black Al. Housing
Plastic Housing
Al. Housing w/Solid Grid
90
35
36
37
38
39
40
41
42
43
44
45
Frequency (Khz)
Beam Angle: Tested at 40.0Khz frequency
0
330
300
270
0
-6
-12
-18
-24
-30
-36
30
60
90
240
120
210
150
180
SPL (dB)
Transmitting Sound Pressure
Level
at 40.0Khz; 0dB re 0.0002µbar
per 10Vrms at 30cm
Receiving Sensitivity
at 40.0Khz 0dB = 1 volt/µbar
Capacitance at 1Khz ±20%
10000
100
Sensitivity (dB)
400SR160
Impedance (Ohm)
100000
Phase Angle (Degree)
Tested under 1Vrms Oscillation Level
400SR160 Impedance
400SR160 Phase
400ST160 Impedance
400ST160 Phase
PROWAVE
Air Ultrasonic Ceramic Transducers
400ST/R160
400ST160 Transmitter
Sensitivity Variation vs. Loaded Resistor
SPL Variation vs. Driving Voltage
-40
125
-45
120
-50
115
-55
110
SPL (dB)
Sensitivity (dB)
400SR160 Receiver
-60
-65
-70
105
100
95
-75
90
-80
1K
3.9K
10K
39K
100K
85
390K
0
Loaded Resistor (Ohm)
3.0
0.0
2.0
-1.0
1.0
0.0
-1.0
4
6
8
10
12
20
22
24
26
28
30
-2.0
-3.0
-5.0
-3.0
1K
3.9K
10K
39K
100K
0
390K
2
4
6
8
10 12
14 16
18 20
22 24
26 28
30
Vrms
Loaded Resistor (Ohm)
SPL Variation vs. Temperature
Sensitivity Variation vs. Temperature
-40
130
-45
125
-50
120
-55
115
SPL (dB)
Sensitivity (dB)
18
-4.0
-2.0
-60
-65
110
105
-70
100
-75
95
90
-80
-40 -30 -20 -10
0
10
20
30
40
50
60
70
80
-40 -30 -20 -10
90 100
0
10
20
30
40
50
60
70
80
90 100
Temperature (Degree C)
Temperature (Degree C)
Center Frequency Shift vs. Temperature
Center Frequency Shift vs. Temperature
3.0
3.0
2.0
2.0
Fc Variation %
Fc Variation %
14 16
Vrms
Center Frequency Shift vs. Driving Voltage
Fc Variation %
Fc Variation %
Center Frequency Shift vs. Loaded Resistor
2
1.0
0.0
-1.0
1.0
0.0
-1.0
-2.0
-2.0
-3.0
-3.0
-40 -30 -20 -10
0
10
20
30
40
50
Temperature (Degree C)
60
70
80
90
100
-40 -30 -20 -10
0
10
20
30
40
50
Temperature (Degree C)
60
70
80
90
100
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