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Air Ultrasonic Ceramic Transducers

400ST/R160 Dimensions: dimensions are in mm

Impedance/Phase Angle vs. Frequency
Tested under 1Vrms Oscillation Level 400SR160 Impedance 400SR160 Phase400ST160 Impedance 400ST160 Phase
100000 90 75 60 45 30 15 0 -15 -30 -45 -60 -75 -90 35 36 37 38 39 40 41 42 43 44 45 Frequency (Khz)

Specification

400ST160 400SR160 Center Frequency Bandwidth (-6dB)400ST160 400SR160 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% Max. Driving Voltage(cont.) -6dB Total Beam Angle Operation Temperature Storage Temperature

Transmitter Receiver 40.0±1.0Khz 2.0Khz 2.5Khz 120dB min.

10000

1000

100

Sensitivity/Sound Pressure Level
Testedunder 10Vrms @30cm
-50 130 125 120 115 110 105 100 95 90 35 36 37 38 39 40 41 42 43 44 45 Frequency (Khz) SPL (dB)

Sensitivity (dB)

-65dB min. 2400 pF 20Vrms 55° typical -30 to 80°C -40 to 85°C-55 -60 -65 -70 -75 -80 -85 -90

Beam Angle: Tested at 40.0Khz frequency

All specification taken typical at 25°C Closer frequency tolerance can be supplied upon request.
330 300

0 0 -6-12 -18 -24 -30 -36 30

60

Models available: 1 400ST/R160 2 400ST/R16B 2 400ST/R10P 3 400ST/R16F

270

90

Aluminum Housing Black Al. Housing Plastic Housing Al. Housing w/Solid Grid

240120

210 180

150

Phase Angle (Degree)

Impedance (Ohm)

Air Ultrasonic Ceramic Transducers
400SR160 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

400ST/R160 400ST160 Transmitter SPL Variation vs. Driving Voltage
125 120 115 110 105 100 95 90 85 0 2 4 6 8 10 12 1416 Vrms 18 20 22 24 26 28 30

Center Frequency Shift vs. Loaded Resistor

Center Frequency Shift vs. Driving Voltage

3.0 2.0 1.0 0.0 -1.0 -2.0 -3.0 1K 3.9K 10K 39K 100K 390K Loaded Resistor...
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