Air Acoustics Suite — Lab Report

Scan: CH4_back_2  |  Generated: 2026-08-15_19-13-31

Calibration

Temperature20.9 °C
Humidity53 %RH
Mic Sensitivity158 mV/Pa
Module Gain0 dB
Effective Sensitivity158.00 mV/Pa
Reference Distance5 cm (Override ToF: off)
Calibrated Noise Floor0.001112 V RMS

Burst Analysis

Settings

FG ModeBurst
WaveformSine
Drive kHz, 20 Vpp, 1 cycles
ScopeAverage, 32 averages
FG ON Duration1.2 s
FFT WindowHanning

Results

Scope Vpp
-- V
Acoustic
-- Pa
SPL
-- dB SPL
Source Level
SL@1m: --
SNR
-- dB SNR
ToF Distance
-- cm
THD
THD: --%
Ring-Down τ
τ₂₀: -- ms

Resonance Sweep

Settings

WaveformSine
Drive Voltage40 Vpp
MeasurementRMS
Frequency Range0.06 – 0.3 kHz, step 0.0005 (Linear)
Dwell0.1 s

Results

Peak Frequency
0.075 kHz
Bandwidth
0.053 kHz
Q Factor
1.4

Polar Scan

Settings

WaveformSine
Drive kHz, 5 Vpp
Scan Range-90° to 90°, step 5° (Start→End)
Dwell per Step1.2 s
Theoretical PatternCircular, 10.0 mm, mode (0,0)

Results

-3dB Beamwidth
-- °
-6dB Beamwidth
-- °

Advanced Timing

Wavelet (CWT) kHz, 20 V, 1 cycles (Square)
STFT kHz, 10 V, 5 cycles (Square)

Impedance

Imported FilesNone