應用領域：
古代建築保護，市政園林保護防災，林業科學研究，林業研究教學應用，貴重木材交易等樹木無損檢測.
Introduction介紹
Fakopp 3D Acoustic Tomograph is able to non-destructively detect the size and location of decayed or hollow parts in the trunk. It works based on sound velocity measurement between several sensors around the trunk. The basic measurement principle is that sound velocity drops if there is a hole between two sensors.
根據樹乾周圍多個傳感器之間的應力波傳輸速度測量，檢測出樹乾腐朽或中空部分的位置及大小。 基本測量原理是，如果有兩個傳感器之間有孔，那麼這兩個傳感器測得的應力波傳輸速度就會有差別。
Step by step測試過程
1. Drive the transducers through the bark using a rubber hammer with even spacing around the trunk. 通過橡膠錘把傳感器固定在被測樣品上。
2. Measure the distances between the transducers with a caliper and enter the measured data to the computer. 各個傳感器直接的位置通過測量輸入電腦。
3. Tap each transducer with a steel hammer to generate sound waves. Fakopp 3D measures the travel times with microsecond precision to each transducer and transmits the data to the computer. 每個換能器將鋼錘產生的應力波在各傳感間三維傳播的行程時間微秒級測量精度的測量並傳輸數據到電腦。
4. The software calculates and displays the internal sound-velocity distribution of the tree. 該軟件計算和顯示出樹木的內部應力波速度分佈圖。
5. Measurements at several heights can be assembled into a 3D model 在不同高度的測量數據可組合成一個3D的模型
User's Maunal
You can download the User's Manualhere.
Package contents 配置:
SD02 Piezo transducers壓電換能器
Amplifier boxes放大器盒
Battery box主機含電池盒
Cables to connect amplifier boxes and battery box 電纜：連接放大器，主機含電池盒。
Caliper for measuring sensor positions (optional) 遊標卡尺用於測量傳感器位置•(可選)
Sensor remover tool 傳感器安裝工具
Tape measure卷尺
Steel hammer for tapping transducers 小鋼錘
Rubber hammer for fixing transducers橡膠錘
Technical parameters技術參數
Measured time precision精度 | +/- 2 microseconds |
Sensor傳感器 | Low noise SD02 piezo sensor |
Number of sensors 傳感器數量 | Variable from 8 up to 32 |
Amplifier box size 放大器盒 | 127 x 58 x 25 mm |
Power consumption 功率消耗 | 240 mW |
Power supply 電源 | Standard (rechargeable) 9V block battery |
Continuous operation time with one battery 1塊電池的工作時間 | Approximately 2 hours |
Carrying case | Peli Case 1500 |
Total weight including case, hammers and 10 sensors without PC 重量 | 6 kg |
PC connection 連接電腦的方式 | RS232 over cable or Bluetooth |
Data transmission time per sensor tap 采集數據時間間隔 | Below one sec |
Total measurement time of one tree at one layer including assembly, geometry registration, tapping and disassembly with 10 sensors 測試時間 | 20 minutes |
Operating temperature range 工作溫度范圍 | 0 to 40 degrees |
應用:
新手教學
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