When your research or testing calls for capturing the fine-grain structure of airflow, velocity fluctuations, and turbulence spectra, the Smart CTA – Model 7250 provides a precision solution. Designed with both accessibility and advanced performance in mind, it empowers researchers, engineers, and labs to conduct compact, high-fidelity hot-wire anemometry analyses with confidence.
Integrated Dual-Channel Compact Design
Unlike traditional systems that require separate bridge units, the Smart CTA consolidates two Constant Temperature Anemometry (CTA) channels into a single, compact main unit. This architecture supports either 1‑dimensional or 2‑dimensional probe configurations without needing external bridge boxes, reducing system complexity in the field or lab.
High Bandwidth and Responsiveness for Turbulence Analytics
The Smart CTA is built for high-speed phenomena, offering a frequency response up to 20 kHz, enabling you to resolve rapid fluctuations in velocity and turbulence energy across a broad spectral band.
Its feedback circuitry supports probes with resistances from 4.5 to 45 Ω, and the bridge ratio is set at 12:1 to optimize signal sensitivity.
Software-Driven Calibration and Measurement Workflow
From calibration through measurement, the Smart CTA is fully supported by dedicated software that streamlines probe setup, real-time monitoring, data capture, and statistical analysis. The software handles tasks such as probe calibration curves, time-series data collection, velocity histograms, and spectral analysis—all output in common file formats for further processing.
Ideal for Advanced Airflow & Turbulence Applications
The Smart CTA excels in a range of fluid mechanics and aerodynamics scenarios:
- Investigating boundary‑layer turbulence in wind tunnels
- Measuring pulsating flow or vortex shedding phenomena
- Examining airflow fluctuations around rotating equipment (fans, turbines, propellers)
- Assessing flow noise and turbulence-induced acoustic sources
- Characterizing flow in HVAC ducts, architectural flows, or around overhead lines
Robust Design and Technical Specifications
Operating within an ambient range of 5 °C to 35 °C, 20–90 % RH (non‑condensing), the Smart CTA offers reliable performance in controlled lab environments. Its power requirements are matched to global standards (AC 100/120/220/240 V, 50/60 Hz), selected prior to delivery.
Measuring 320 × 88 × 280 mm and weighing about 3.8 kg, it balances compactness with durability.
Other key specs include:
- Output voltage range: 0–10 V DC (for each channel)
- Probe supply current: < 350 mA
- Probe resistance range: 4.5–45 Ω
- Expandable up to 16 channels via optional interface modules
The system supports a broad variety of probe types: parallel, perpendicular, X‑flow cross probes, end‑flow, 45° slant, and more configurations (e.g. tungsten, platinum, platiniridium wires).
More Information
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- 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
- 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
- Measurement of air flow fluctuation and frequency analysis of turbulence
- Measurement of pulsating flow
- Investigation on noise generated by air flow
- Airflow investigations in wind tunnels
| Main Unit Specifications | |
|---|---|
| Method | Constant Temperature Anemometry (CTA) |
| Bridge | |
| Number of Channels | 2 |
| Bridge Ratio | 12:1 |
| Set Resistance (for probe) | 4.5 to 45 Ω |
| Current Supply to Probe | < 350 mA |
| Feedback Circuit | |
| Output Voltage Range | 0 to 10 V DC |
| Frequency Response | < 20 kHz |
| Operating Environment | |
| Temperature | 5 to 35 °C |
| Humidity | 20 to 90% RH |
| Power Supply | |
| Voltage | AC100V / 120V / 220V / 240 V (set prior to delivery) |
| Frequency | 50 Hz / 60 Hz |
| Appearance | |
| Dimensions | 320 mm x 88 mm x 280 mm |
| Weight | approx. 3.8 kg |
| Software | |
| Function | Probe Calibration, Measurement, Graph Indication, Realtime Monitoring |
| Created Files | Probe Calibration File Measurement File Statistical Calculation Result File (csv) |
| Analysis Data (Statistical Calculation Result File) | Average velocity value, Standard deviation, Min. velocity value, Max. velocity value, Turbulent intensity |
| Supported Operating System | Windows 10 (64bit) |
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