Chilled mirror hygrometers

Precision dewpoint measurement combined with advanced temperature control and optical detection, delivering accurate and reliable moisture measurement solutions for a wide range of applications.

How our chilled mirror hygrometers work

Our chilled mirror hygrometers use dewpoint measurement to accurately determine the moisture content in a gas sample.
The heart of the system is a precisely temperature-controlled mirror surface that is cooled to the point where condensation begins to form. This temperature, known as the dewpoint, directly correlates to the amount of moisture present in the gas.

The mirror's temperature is precisely regulated using a thermoelectric cooler, which allows for rapid and precise adjustments. A light source is directed onto the mirror surface, and the reflected light is monitored by a sensitive optical detector. As the mirror cools and condensation begins to form, the reflected light signal diminishes. The hygrometer's advanced control system continuously monitors the mirror surface and maintains the temperature at the exact point where condensation begins to form, providing a real-time measurement of the dewpoint temperature. This temperature is then converted to the corresponding moisture content using industry standard equations, providing highly accurate and reliable humidity measurements.

Our chilled mirror hygrometers are designed with a focus on accuracy, reliability, and ease of use. The sensors are constructed using high-quality materials and undergo rigorous calibration and testing to ensure optimal performance. The compact and rugged design allows for use in a wide range of applications, from laboratory settings to industrial environments. 

Key Applications

Our chilled mirror hygrometers are employed across a range of critical industries due to their exceptional reliability and accuracy, making them suitable for demanding and high-precision laboratory use across a variety of applications:
Clinical DiagnosticsIn clinical diagnostics, chilled mirror hygrometers are used to maintain optimal humidity levels during the analysis of health and disease markers. This precise moisture control is vital for accurate testing of metabolic markers, liver function, heart disease indicators, and more, ensuring reliable diagnostics for various health conditions.
Environmental MonitoringEnvironmental testing, critical for detecting pollutants in air, water, and soil, relies on chilled mirror hygrometers for accurate humidity measurement. These devices help verify that products and equipment will perform under real-world environmental conditions, essential for assessing climate and mechanical factors like temperature, humidity, shock, and vibration.
Food TestingEnsuring food safety and quality begins with proper humidity control, made possible by chilled mirror hygrometers. These devices are crucial for accurately analysing food chemistry, microbiology, nutrition, and other key safety parameters in labs or the field, contributing to consumer safety and product reliability.
Forensic LaboratoriesForensic laboratories depend on chilled mirror hygrometers to maintain precise environmental conditions for evidence analysis. Accurate humidity measurement is essential for the examination of trace evidence, fingerprinting, DNA identification, and the assessment of body fluids, ensuring the integrity of forensic analyses.
Materials ResearchIn materials research, chilled mirror hygrometers play a key role in studying the properties of biomaterials, ceramics, polymers, and more. Accurate humidity measurement allows for a deeper understanding of the relationship between material structure and properties, facilitating the development of new materials with specific characteristics.
Pharmaceutical LaboratoriesPharmaceutical development benefits from the use of chilled mirror hygrometers, ensuring controlled humidity during critical stages of drug formulation and preclinical testing. These devices are essential for accurate pharmacology services, ADME-Tox testing, and biomarker analysis, contributing to the efficacy and safety of new drugs.
Aerospace and Aviation In aerospace and aviation, maintaining ideal humidity levels is critical for passenger comfort and equipment longevity. Chilled mirror hygrometers are used to measure humidity levels in aircraft cabins and environmental control systems accurately, ensuring safe and efficient flight operations.

Whatever the challenge, you can rely on Alpha Moisture Systems

If you require a customised trace moisture measurement solution, book a consultation with our expert technical team and find out how you can increase the efficiency and productivity of your operations.

Trusted by industry leaders

We are proud to be a trusted partner and supplier to some of the world’s leading brands across a range of industries.
BP Helios
Abbott Laboratories
Atlas Copco Logo
AIR_LIQUIDE
AirProducts
AstraZeneca
boge logo
BASF
Bristol Myers Squibb
Cabot
Chesapeake Energy
DevonEnergy
Blue Origin
Lilly
ConocoPhillips
Equinor
ExxonMobil
GSK
Ingersoll Rand
Linde plc
JNJ
Merck
Matheson Gas
Messer Group
Moderna
Petronas
Praxair
TotalEnergies
Southern Company Gas
universal industrial gases
SpaceX

Dewpoint Calculator for Trace Moisture Measurement

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