Thermoacoustic Emitter€¦ · Acoustic field focussed Impulse response of the thermoacoustic...
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moving sounds without moving parts Thermoacoustic Emitter broadband air-coupled ultrasound source
Transcript of Thermoacoustic Emitter€¦ · Acoustic field focussed Impulse response of the thermoacoustic...
moving sounds without moving parts
Thermoacoustic Emitterbroadband air-coupled ultrasound source
moving sounds without moving partsmoving sounds without moving parts
Focal spot size ø 1 mm
Focal distance 20 or 30 mm
Operating voltage 0 – 750 V
Size ø 42 mm / 52 mm
Weight 250 g / 400 g
Features
Emitter type thermoacoustic
Frequency range 10 kHz – 1 MHz
Peak pressure >2000 Pa (>160 dBSPL)
Pulse width 1 µs (FWHM)
Acoustic field focussed
Impulse response of a piezoelectric emitterImpulse response of the thermoacoustic emitter
20 30 40 50 60 70 80 90 100 110 120 130 140
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X [mm]
Sound
pressure [Pa]
Y [m
m]
Acoustic field of a thermoacoustic emitter measured with an Optical Microphone
0 50 100 150 200 250Time [µs]
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plitu
de [P
a]
0 50 100 150 200 250Time [µs]
-3000
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Am
plitu
de [P
a]
Time [μs] Time [μs]
Am
plit
ude
[Pa]
Am
plit
ude
[Pa]
