应用领域:
古代建筑保护,市政园林保护防灾,林业科学研究,林业研究教学应用,贵重木材交易等树木无损检测.
Introduction介绍
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.
根据树干周围多个传感器之间的应力波传输速度测量,检测出树干腐朽或中空部分的位置及大小。 基本测量原理是,如果有两个传感器之间有孔,那么这两个传感器测得的应力波传输速度就会有差别。
Step by step测试过程
1. Drive the transducers through the bark using a rubber hammer with even spacing around the trunk. 通过橡胶锤把传感器固定在被测样品上。
2. Measure the distances between the transducers with a caliper and enter the measured data to the computer. 各个传感器直接的位置通过测量输入电脑。
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. 每个换能器将钢锤产生的应力波在各传感间三维传播的行程时间微秒级测量精度的测量并传输数据到电脑。
4. The software calculates and displays the internal sound-velocity distribution of the tree. 该软件计算和显示出树木的内部应力波速度分布图。
5. Measurements at several heights can be assembled into a 3D model 在不同高度的测量数据可组合成一个3D的模型
User's Maunal
You can download the User's Manual here.
Package contents 配置:
SD02 Piezo transducers压电换能器
Amplifier boxes放大器盒
Battery box主机含电池盒
Cables to connect amplifier boxes and battery box 电缆:连接放大器,主机含电池盒。
Caliper for measuring sensor positions (optional) 游标卡尺用于测量传感器位置•(可选)
Sensor remover tool 传感器安装工具
Tape measure卷尺
Steel hammer for tapping transducers 小钢锤
Rubber hammer for fixing transducers橡胶锤
Technical parameters技术参数
Measured time precision精度 |
+/- 2 microseconds |
Sensor传感器 |
Low noise SD02 piezo sensor |
Number of sensors 传感器数量 |
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 电源 |
Standard (rechargeable) 9V block battery |
Continuous operation time with one battery 1块电池的工作时间 |
Approximately 2 hours |
Carrying case |
Peli Case 1500 |
Total weight including case, hammers and 10 sensors without PC 重量 |
6 kg |
PC connection 连接电脑的方式 |
RS232 over cable or Bluetooth |
Data transmission time per sensor tap 采集数据时间间隔 |
Below one sec |
Total measurement time of one tree at one layer including assembly, geometry registration, tapping and disassembly with 10 sensors 测试时间 |
20 minutes |
Operating temperature range 工作温度范围 |
0 to 40 degrees |
应用:
联系方式:
广州易测仪器有限公司 地址:广州市天河区燕岭路123号建设大厦1216邮编:510507 电话(TeL):020-62807956 62807049 传真(Fax):020-62807956 62807049转9
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