欧兰公司主站
北京欧兰科技发展有限公司

 




Smart CTA MODEL 7250 

Smart CTA MODEL 7250

专业紧凑型热线风速仪用于流场的湍流测量和频谱分析




A Hot-Wire Anemometer (HWA) is a very basic instrument for measurements of turbulence intensity of air flow and for its frequency analyses. A HWA detects velocities from analog electrical signals continuously outputted from the CTA feedback circuit. The Hot-Wire sensors are very tiny, a diameter of about a few microns, and therefore bring high thermal responsiveness. Those small sensors enable to capture information of the microstructure of the flow. By traversing the probe, velocity distribution can be also measured.

The Smart CTA is a professional but easy-to-use Hot-Wire Anemometer. In a compact design, two CTA units are integrated, which enable not only a one-dimensional probe but also a two-dimensional probes to use just with one main unit. The Smart CTA offers the frequency response up to 20 kHz, so for most applications it can be employed.


  • 2 channels of CTA integrated in one unit, extended up to 16 channels
  • Frequency response up to 20 kHz
  • Compact and easy to use
  • Exclusive software support from probe calibration to measurement

应用领域

  • Investigation on air flow turbulence of rotating parts like fans, turbines,
     
    unmanned aircraft blades, etc.
  • Measurement of air flow turbulence of buildings or nearby overhead
     
    electric wire
  • 测量空气流动起伏和湍流频谱分析
  • 测量脉动流
  • 研究空气流动诱导噪声
  • 风洞中的空气流动研究

技术指标

测量指标 (主机)
测量方法 Constant Temperature Anemometry (CTA)
电桥
通道数 2
Bridge Ratio 12:1
设定阻抗 (针对探头) 4.5 to 45 Ω
探头供电电流 < 350 mA
反馈电路
输出电压范围 0 to 10 V DC
频率响应 < 20 kHz
运行环境
温度 5 to 35 °C
湿度 20 to 90% RH
供电电源
电压 AC100V / 120V / 220V / 240 V (set prior to delivery)
频率 50 Hz / 60 Hz
外观
外形尺寸 320 mm x 88 mm x 280 mm
重量 approx. 3.8 kg
软件
功能 探头标定, 测量, 图形显示, 实时监控
生成文件 探头标定文件
测量文件
统计计算结果文件(csv)
分析数据
(统计运算结果文件)
平均速度值, 标准偏差,
最小速度值, 最大速度值,
湍流强度
支持的操作系统 Windows 10 (64位), 日文 / 英文

指标可能变更恕不事先通知.

可选项

  • 软件
  • 接口 (A/D 转换器, THERMOCOUPLE INPUT MODULE, I/O 模块)
  • 计算机
  • 探头和探头附件
  • 探头标定器


下载
SmartCTA MODEL 7250 BROCHURE PROBE CALIBRATOR MODEL 1065 BROCHURE
SmartCTA 型号 7250 产品样本 探头标定器型号 1065 产品样本

原理

Hot wire anemometer uses the King’s equation.
It utilizes the phenomenon that the thermal energy dissipated from the heat rays (heated resistance wire) into the fluid depends on the fluid velocity.

     

model_7250_prin01

Relation of the wind velocity and the amount of heat dissipation is known as the "King's equation."

model_7250_prin02


model_7250_prin03
model_7250_prin04

model_7250_prin05
model_7250_prin06




























测量实例

风洞中圆柱体尾流测量
model_7250_ex01
测量结果实例
model_7250_ex02 model_7250_ex03
速度的时间序列和柱状图 速度的时间序列和功率谱

基于博卡先锋SiteEngine构建
北京欧兰科技发展有限公司 版权所有 电子邮件:info@oplanchina.com oplan@263.net,
联系电话:010-62623871, 62616041,62612809 传真:010-59713638
地址:北京市,海淀区,上地十街1号,辉煌国际中心1号楼1006室 邮政编码:100085京ICP备07038319号-1
Processed in 0.048 second(s), 3 queries