Eco-Tech products

Vibration Calibrator Type WDS-2 is designed for calibration of vibration meters equipped with whole body vibration transducers (seat pads). The instrument generates sinusoidal vibration of nominal acceleration 1 m/s² RMS at frequency 16 Hz. The Type WDS-2 enables calibration of triaxial whole body transducers in 3 axes without removing its rubber cover. The calibrator fulfills requirements of ISO 8041-1:2017.

Vibration Calibrator Type WDS-3 is designed for calibration of vibration meters equipped with whole body (seat pads) and hand-arm vibration transducers. The instrument generates sinusoidal vibration of nominal acceleration 1 m/s² RMS at frequency 16 Hz and acceleration 10 m/s² RMS at frequency 80 Hz or 160 Hz. The Type WDS-3 enables calibration of triaxial whole body transducers in 3 axes without removing its rubber cover. The calibrator fulfills requirements of ISO 8041-1:2017.

Multichannel Acoustic Calibrator Type WK-8 is designed for calibration of multichannel acoustic measurement systems equipped with a half-inch measuring microphones in the field conditions.

Tapping Machine Type STM-1 is intended for measurements of acoustic insulation of ceiling in buildings. The unit fulfils Annex A of ISO 140-6/7. These parts of the standard require a tapping machine as a sound source for impact noise measurements. Type STM-1 is available with an optional remote control.

Infrasound calibrator Type IFC-1 is used to calibration of acoustic measuring instruments adapted to measurements in the infrasound frequency range. The Type IFC-1, when connected to the microphone of the tested instrument generates a sinusoidal sound pressure signal SPL = 94 dB at frequency 10 Hz or 20 Hz in its pressure chamber. Both frequencies enable to test G weighting network of sound level meter. The calibration method is in compliance with Annex A of ISO 7196.

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.

Ultrasonic Source Type UF-1 generates ultrasounds signals for acoustical testing of measurement microphones and its wind-screens by under free-field conditions.