MINATURE, SELF-CONTAINED DIGITAL THERMAL ANEMOMETER
“World’s smallest” fully-integrated and temperature-compensated fluid velocity measurement system
This ultra-compact thermal anemometry system is fully self-contained, and is ideal for use in high-EMI environments. Our proprietary CMOS sensing elements allow the system to be calibrated down to speeds of less than 10 mm/s in air. The electronics package is small enough to fit inside a 13 mm diameter sting, and purpose-designed robust miniature probes can be directly integrated for a complete velocity sensing package.
At a small fraction of the cost of a conventional CTA system, this miniature unit provides all the necessary functionality to carry out flow measurements with minimal complexity. The system has a proprietary analogue temperature correction system, offering a signal virtually insensitive to temperature over a wide range of ambient conditions. Systems are available with robust, surface-mountable flex-probes, either as analogue-reading units or fully-integrated USB-driven systems.
Applications
Miniature thermal anemometry system
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Wind tunnel measurements
This system provides an ideal alternative to high-cost, high-bandwidth CTA systems for use in environments normally considered too risky for thermal anemometry. With surface-mounted polyamide sensor leads, these units are extremely robust and can be used in particle-laden flows. With our optional coatings, the sensors may also be used in conductive or corrosive environments.
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Education
The high cost of most commercial CTA systems, and the high fragility of conventional hot-wire and hot-film probes makes these difficult to use in educational environments. This micro-CTA system is an inexpensive, robust alternative- and the direct-to-USB signal output means that no additional data acquisition hardware is required.
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Motorsport
The thermal anemometry probe offers a compact, low-cost alternative to conventional pressure-based velocity measurement, with improved bandwidth and no holes to become fouled or filled with water. This self-contained unit is small enough to tuck into otherwise inaccessible areas, and is suitable for trackside monitoring.
FEATURES
Product Details
Data sheets and user manuals
- Data sheet (USB)– Surrey Sensors DS-MUCTA-092019-1.0
- Data sheet (analogue) – Surrey Sensors DS-NACTA1-010623-1.0
- User manual – Surrey Sensors USM-MUCTA-092019-2.0
Drawings & models
Technical notes, application notes and references
(All software is for USB variant only)
USB Driver:
Testing executable:
Third-party drivers:
- National Instruments LabView (select “run time engine” only, 64-bit version)
- National Instruments NI-VISA
End-user licence agreements: