Infrasound Calibrator Type IFC-2
Infrasound Calibrator Type IFC-1
Low Frequency Pressure Chamber Type PF-12
Low Frequency Pressure Chamber Type PF-12 is a source of sound pressure in infrasound frequency range for measurements in lab conditions.
The Type PF-12 contains an electrodynamic exciter connected to a piston which moves inside a sealed pressure chamber. Sinusoidal electrical signal from the external source is amplified and supplied to the controller causing a sinusoidal motion of the piston. The chamber generates an acoustic pressure of up to 120 dB at the frequency of the signal generator.