ArborSonic 3D Acoustic Tomograph
The ArborSonic 3D Acoustic Tomograph is able to detect the size and location of decayed or hollow regions in the trunk non-destructively. It works based on sound velocity measurements between several sensors around the trunk. The basic measurement principle is that sound velocity drops if there is a hole between two sensors.
Measured time precision± 2 microseconds
SensorLow noise SD02 piezo sensor
Number of sensorsVariable from 8 up to 32
Amplifier box size127 x 58 x 25 mm
Power consumption240 mW
Power supplyStandard (rechargeable) 9V block battery
Continuous operation time Approximately 2 hours
Carrying casePeli Case 1500EU
Total weight 6 kg
PC connectionRS232 over cable or Bluetooth
Data transmission time per sensor tapBelow one sec
Total measurement time of one tree ***20 minutes
Operating temperature range0-40 °C
with one battery
without PC, including case, hammers and 10 sensors
one section, including assembly, geometry registration, tapping and disassembly, using 10 sensors
- Drive the transducers through the bark using a rubber hammer with even spacing around the trunk.
- Measure the distances between the transducers with a caliper and enter the measured data to the computer.
- Tap each transducer with a steel hammer to generate sound waves. ArborSonic 3D measures the travel times with microsecond precision to each transducer and transmits the data to the computer.
- The software calculates and displays the internal sound-velocity distribution of the tree.
- Measurements taken at various heights can be assembled into a 3D model.
SD02 Piezo transducers
Cables to connect amplifier boxes and battery box
Sensor remover tool
Steel hammer for tapping transducers
Rubber hammer for mounting the transducers
2pcs. of rechargeable 9 V block batteries
ArborSonic 3D Software
Caliper for measuring sensor positions (optional)