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| Air Ultrasonic Ceramic Transducers 400ST/R120 Dimensions: dimensions are in mm Impedance/Phase Angle vs. Frequency Tested under 1Vrms Oscillation Level 400SR120 Impedance 400SR120 Phase 400ST120 Impedance 400ST120 Phase Specification 400ST120 400SR120 Center Frequency Bandwidth (-6dB) 400ST120 400SR120 Transmitting Sound Pressure Level at 40.0Khz; 0dB re 0.0002bar per 10Vrms at 30cm Receiving Sensitivity at 40.0Khz 0dB = 1 volt/bar Capacitance at 1Khz 20% Max. Driving Voltage (cont.) -6dB Total Beam Angle Operation Temperature Storage Temperature Transmitter Impedance (Ohm) 100000 40.01.0Khz 2.0Khz 2.0Khz 115dB min. 10000 1000 100 35 36 37 38 39 40 41 42 43 44 45 Frequency (Khz) Sensitivity/Sound Pressure Level Tested under 10Vrms @30cm -67dB min. -50 -55 Sensitivity (dB) 130 125 120 SPL (dB) 115 110 105 100 95 90 35 36 37 38 39 40 41 42 43 44 45 Frequency (Khz) 2400 pF 20Vrms 85 typical -30 to 80C -40 to 85C -60 -65 -70 -75 -80 -85 -90 All specification taken typical at 25C Closer frequency tolerance can be supplied upon request. Model available: Beam Angle: Tested at 40.0Khz frequency 330 300 270 240 210 0 0 -6 -12 -18 -24 -30 30 60 90 120 1 2 400ST/R120 400ST/R12B Aluminum Housing Black Al. Housing 180 150 Supplied by Midas Components Ltd - 01493 602602 - www.midascomponents.co.uk Phase Angle (Degree) Receiver 90.0 75.0 60.0 45.0 30.0 15.0 0.0 -15.0 -30.0 -45.0 -60.0 -75.0 -90.0 Air Ultrasonic Ceramic Transducers 400SR120 Receiver Sensitivity Variation vs. Loaded Resistor 400ST120 Transmitter 400ST/R120 SPL Variation vs. Driving Voltage -40 -45 Sensitivity (dB) -50 125 120 115 SPL (dB) 110 105 100 95 90 85 1K 3.9K 10K 39K 100K 390K -55 -60 -65 -70 -75 -80 Loaded Resistor (Ohm) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Vrms Center Frequency Shift vs. Loaded Resistor Center Frequency Shift vs. Driving Voltage 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) 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 Vrms 18 20 22 24 26 28 30 Fc Variation % Sensitivity Variation vs. Temperature SPL 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 (dB) -55 Fc Variation % 130 125 120 115 110 105 100 95 90 -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) 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 % Fc Variation % |
Price & Availability of 400STR120
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