White Paper: Vaisala: Dew point sensing technologies
This white paper explores the differences between chilled mirror, metal oxide, and polymer sensors and compares how these technologies perform in the four most common challenges to measuring dew point in compressed air.
Moisture is a constant issue in compressed air systems. When dew point sensors are working optimally, measures can be taken to avoid malfunctions, inefficient operations or poor quality end product.
However, the measurement of dew point in compressed air systems can present many challenges that lead to erroneous readings, poor stability, and even sensor failures. The most common issues with dew point sensors in compressed air are usually centered on response time, reliability of the reading, recovery from water spikes or condensation, and exposure to compressor oil.
To better understand these challenges, it is worth first exploring the performance differences between the most common sensor technologies.
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