Betekenis van:
sound pressure level
sound pressure level
Zelfstandig naamwoord
- the physical intensity of sound
Synoniemen
Hyperoniemen
Voorbeeldzinnen
- Sound pressure level meter:
- The indicator for the sound pressure level is LpAeq,T.
- sound pressure level, according to a defined measuring method and microphone position,
- The ambient noise level shall be at least 10 dB lower than the sound pressure level to be measured.
- Sound pressure of the stationary noise has to be described by the A-weighted equivalent continuous sound pressure level LpAeq, T, according to prEN ISO 3095:2001, chapter 7.5.
- Sound pressure level exceeding 224 dB (reference 1 μPa at 1 m) for equipment with an operating frequency in the band from 10 kHz to 24 kHz inclusive;
- Sound pressure level exceeding 224 dB (reference 1 µPa at 1 m) for equipment with an operating frequency in the band from 10 kHz to 24 kHz inclusive;
- Sound pressure level exceeding 235 dB (reference 1 μPa at 1 m) for equipment with an operating frequency in the band between 24 kHz and 30 kHz;
- The sound pressure level of the device when fitted to the tractor shall be measured at a point 7 metres in front of the tractor, at a site which is open and as level as possible.
- The indicator for the sound pressure level is LpAeq, T. The limiting values for the noise emission of the vehicles under these above mentioned conditions are given in Table 2.
- Acoustic environments at an overall sound pressure level of 140 dB or greater (referenced to 20 μPa) or with a total rated acoustic power output of 4 kW or greater; and
- acoustic environments at an overall sound pressure level of 140 dB or greater (referenced to 20 µPa) or with a total rated acoustic power output of 4 kW or greater; and
- The measuring conditions are defined by the standard prEN ISO 3095:2001 with the deviations defined in Annex A. The indicator for the sound pressure level is LpAeq,T.
- Diver deterrent acoustic systems specially designed or modified to disrupt divers and having a sound pressure level equal to or exceeding 190 dB (reference 1 µPa at 1 m) at frequencies of 200 Hz and below.
- The maximum sound pressure level is to be recorded, when the test vehicle is coasting, by remote-field microphones; the final result for a reference speed is obtained from a linear regression analysis.