Introduction

• The AAF’s hot-wire anemometry system is the TSI IFA-300 constant temperature set-up. It works by having the sensor resistance kept constant by a servo-amplifier.
• It is a system in which the output from the bridge (raw) voltage is amplified and used to control the supply voltage such as to maintain the wire temperature constant.
• The amplified output, also known as the temperature corrected voltage required to maintain the wire at a constant temperature, is a function of the fluid velocity.
• This equipment is to be used within the Facility only.

Photo of the system

The TSI IFA-300 constant temperature anemometer unit and processing computer.

Example of the hot-wire sensors installed in wind tunnel for a sample test run.

Users’ Training

Users are only allowed to use the hot-wire anemometry system of the Facility after completing the relevant equipment training. Please click here for more information with regards to users’ training of this equipment.

Technical information

Users can find reference of technical information after attending the relevant training sessions.