GNGTS 2014 - Atti del 33° Convegno Nazionale

GNGTS 2014 S essione 2.1 23 has been active for two years, with the following characteristics: Power voltage: Battery 12 volt Dimensions: 300x210x35mm, 1 kg. Degree of protection: IP 44 USB range of measures: 0-20 Hz. VCO range of measures: 0-35 Hz. Stabilization time: 40-50 S. Graphic display: USB interface Acoustic gauge: B.F. exit:1175 - 2400 Hz. Central frequency: 1780 Hz. Battery life: 6 hours Sensor: Infrasounds pickup of Aetech Infrasounds Monitor The Infrasound Meter is placed in SPSC basement of the first author’s house, as we can see in Fig.1. The sensor of the infrasound detector is placed near a wall, at a distance 15 cm from it (de Liso et al. , 2013). Monitoring methodologies. The monitoring, continuous and connected with a computer, is intentionally placed to this day in the first author’s house, near a forest, in an area with little anthropic disturbance. Normal family life gives the first author the possibility of discrimination between anthropic and natural sounds, rumbles and so on, thanks to images formed by the SpectrumLab. SpectrumLab, connected to InfrasoundMeter, synthetically gives her information about frequencies, intensity in dB and seconds (Fig. 2a). Thanks to her acoustic perception (windows are left open during these studies), contemporaneous to the observations of Spectrum Lab, she can note the different origins of the sounds and the causes generating them. To this research methodology with Infrasound detector, observations with a Geiger Detector on Castelluzzo and near the summit of Vandalino Mt. are also added. The next project of SPSC of an infrasound monitoring in an outside place with a low anthropic disturbance, but this is now not technically easy. Aetech Detector gives also continuous data in volt/s and in Hz/s (Fig. 2a). Fig. 1 – Location of the infrasound Meter.