Table 3. Sound pressure level and particle acceleration levels in the three orthogonal Cartesian directions and for PAL of the three axes combined at each test frequency.
Frequency (kHz) | SPL | PAL vert | PAL rc | PAL lat | PAL comb |
0.1 | 100 | 59 | 55 | 40 | 61 |
0.2 | 98 | 58 | 51 | 46 | 59 |
0.3 | 101 | 65 | 58 | 54 | 66 |
0.5 | 100 | 64 | 49 | 41 | 64 |
0.6 | 100 | 62 | 48 | 41 | 62 |
0.7 | 100 | 61 | 48 | 44 | 61 |
0.8 | 98 | 60 | 47 | 47 | 60 |
1.0 | 100 | 62 | 54 | 54 | 63 |
SPL-sound pressure level (dB re 1 µPa), PAL-particle acceleration level (dB re 1 µm/s2) in the vertical (vert), rostrocaudal (rc), and lateral (lat) axis; PAL comb-PAL combined of the three directions (magnitude sensu Casper and Mann (2006) [22] and Wysocki et al. (2009) [x]. The PAL comb was calculated based on the particle acceleration of each axis in µm/s2 as 20*log(sqrt(x2+y2+z2)).