Section 2 | Specifications
© 2022
– Valeport Ltd
Page | 2
2 Specifications
2.1 Acoustic
State of the art signal processing technology provides stable, repeatable readings while allowing
the range to be extended to unrivalled distances for a 500kHz altimeter.
Type:
500 kHz broadband transducer
Range:
0.1m
– 100m
Resolution:
1mm
Beam Angle:
±3°
2.1.1 Acoustic Footprint
The acoustic beam angle of the VA500 is, for practical purposes ±3°.
The beam pattern is a cone extending from the face with that angle so the foot print diameter is
approximately 10% of the range as described in the table below:
Range(m) Footprint Ø (m)
1
0.10
2
0.21
5
0.52
10
1.05
20
2.10
50
5.24
100
10.48
2.2 Pressure
The optional pressure sensor fitted to the Altimeter is a temperature compensated piezo-resistive
sensor, which delivers the performance previously only available from a resonant quartz sensor at
a more cost-effective price.
Type:
Temperature compensated piezo-resistive
Range:
10, 30, 100, 300 or 600 Bar
Accuracy:
±0.01% FS
Resolution:
0.001% FS
2.3 Data Acquisition
Sampling:
Continuous or data on demand (by serial command/TTL trigger).
Data Rate:
1, 2 or 4 Hz
