Air velocity measurement
Air velocity measurement at the certain point within dense construction of electronic cards was always unresolved problem.
- 1. The sensor must be small enough to avoid its influence on measurement result
- 2. The first problem can be solved by "hot-wire", but in order to use it the temperature at the same place and same time should be measured.
The first device that got close to the solution was the sensor of Accusense. In plastic plate measuring 5x20mm they place thermocouple and hot-wire within the holes 3mm diameter The main disadvantages of this sensor are:
In order to assure best service quality we in Agren use the most professional equipment. Therefore, ATS system was purchased. It allows, among other:
- Measure Air Velocity and temperature at 8 points at the same time.
- Screening of Air velocity within a channel in order to calculate flow rate.
- Discovery and estimation of air leakages.
- Evaluation of Heat Sink performance in their "natural" environment
- Velocity readings are not continuous, there are defined periods of time when the same sensor measures temperature.
- The size of sensor is constant, in order to change its height additional parts are needed.
- The sensors are very gentle and become dysfunctional very easy. There is no possibility to repair broken sensor, and the new one should be purchased. The price of the sensors is relatively high.