小型热线风速仪Miniature CTA

介绍：

航华Hanghua CTA06 系列热线风速仪是一种适合工程机教学的湍流测量仪。它利用置于惠斯通电桥中的微小钨丝探头来测量风速变化，具有系统稳定、时间解析度好、高效等特点。该仪器的主要特色包括：

• 主机单通道设计，具有极佳的性价比

• 主机轻小，外形80x50x20mm，重量200g

• 适合冷态电阻3.5-4.0欧姆的热线探头，大部分航华及丹迪探头电阻均在此范围内

• 即插即用，不用设置过热比和桥路平衡参数

• 固定探头工作电阻，缺省5.6欧姆 （如探头冷态电阻为3.5欧姆，过热比为Overheat=5.6/3.5=1.6），可定制为其他工作电阻，范围（2-10欧姆）。

• 自动调节桥路平衡，开机阶段自主进行方波测试，电桥响应频率超过10kHz

• 探头故障系统自动报警；

• 标定器（可选部件）可实现自动标定；

• 风速范围0.1-120m/s

• 综合精度：0.5m/s 或 读数的1%之间大者

• 可使用出厂标定结果进行测量（用户不标定），其综合精度为2m/s或读数的3%之间大者

• 测量重复度：0.2m/s或读数的0.5%之间大者

• 软件适配大部分NI数据采集卡，可设置参数，自动及手动标定，采集并保存风速，计算流速均值、湍流度、功率谱，解析二维及三维探针实现多维测量。
  

  
  

基本参数：

供货周期：4周。

应用范围：

• 汽车

• 暖通领域：室内气流测量

• 风工程、安全工程：风场测量，建筑物绕流测量
  

可选附件：

热线探头

热线标定器

三维坐标架‍

The Hanghua CTA06 miniature hot-wire anemometry is a turbulence measurement instrument suitable for engineering and teaching applications. It utilizes a 5-micron tungsten wire probe integrated into a Wheatstone bridge to measure air flow velocity, offering system stability, high temporal resolution, and efficiency. Key features of the instrument include:

- Single-channel main unit design with excellent cost-effectiveness

- Compact and lightweight main unit: 80x50x20 mm, weighing 200g

- Compatible with hot-wire probes having a cold resistance of 3.5-4.0 ohms, covering most Hanghua and Dantec probes

- Easy to use, plug and play, no need to set overheat ratio and tune bridge balance

- Fixed probe operating resistance, default 5.6 ohms (e.g., if the probe cold resistance is 3.5 ohms, the overheat ratio is 5.6/3.5=1.6). Customizable operating resistance within the range of 2-10 ohms

- Automatic bridge balance adjustment with self-initiated square wave test during startup; bridge response frequency upto 10kHz

- Automatic probe failure alarm

- Optional calibrator for automatic calibration

- Air velocity range: 0.1-120 m/s

- Overall accuracy: 0.5 m/s or 1% of the reading, whichever is larger

- Measurement using factory calibration (without user calibration) offers an overall air-flow velocity accuracy of 2 m/s or 3% of the reading, whichever is larger

- Measurement repeatability: 0.2 m/s or 0.5% of the reading, whichever is larger

- Software:   compatible with most NI data acquisition cards, allowing parameter configuration, automatic and manual calibration, wind speed acquisition and storage, temperature variation compensation, calculation of flow velocity averages, turbulence intensity, and power spectrum. It supports analysis of both two-dimensional and three-dimensional probes for multidimensional measurements.