Use
The state of the art sensor is
the so called USP; the Ultimate Sound Probe.
It is an ultra miniature
three dimensional sound probe that is capable of measuring broad banded
sound pressure and particle velocity in three orthogonal directions.
The
USP is a compact and fully integrated sound probe that combines three
orthogonally positioned particle velocity sensors and a miniature
pressure microphone. The actual sensor configuration without its cap is
less than 5×5×5mm³!
The USP extends the traditional
possibilities for sound intensity measurements. A truly broad band
frequency bandwidth (~2Hz-20kHz) without changing spacers becomes
possible. Measurements under exceptional conditions become feasible,
since the USP cannot only be used for keyhole measurements or small
cavities, but also in a reactive field, in the near field and in the
very near field. Only four channels are required for a full description
of a 3D sound field (i.e. 3D intensity, energy and acoustic impedance),
by measuring 3 particle velocity vector components and the (scalar)
pressure.
The USP comes with:
- Signal conditioner with an option for correcting the frequency and phase response
- powering module
- sensor cable
- option for 12V powering
- A protective metal case is provided to ensure that the probe is not damaged when it's not in use.
Datasheet:
Datasheet USP (pdf)
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