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).

Features and Benefits