Accurate moisture measurement begins with the sensor. In critical industrial processes, even trace amounts of water vapor can cause corrosion, hydrate formation, product contamination, catalyst damage, and costly downtime.
COSA XENTAUR’s patented HTF™ (Hyper-Thin-Film) Aluminum Oxide ay Moisture Sensing Technology combines advanced thin-film manufacturing with innovative metal oxide science to deliver exceptional moisture sensitivity, rapid response, long-term stability, and low maintenance. HTF sensors power Process Insights dew point transmitters and portable moisture analyzers used throughout compressed air, hydrogen, natural gas, industrial gas, petrochemical, pharmaceutical, and semiconductor industries. Contact us today for more infomation.
Why Choose HTF Sensor Technology?
Benefits
- Patented Hyper-Thin-Film technology
- Extremely high moisture sensitivity
- Fast response and recovery
- Excellent long-term stability
- Low sensor drift
- Temperature-compensated performance
- High repeatability
- Wide dew point measurement range
- Long sensor life
- Low maintenance requirements
- Field-calibratable
- Field-replaceable sensor
- Proven in demanding industrial environments
- Used across the complete COSA XENTAUR product family
How HTF Works
Step 1 – Water Vapor Enters the Sensor
Moisture molecules diffuse into the engineered pore structure of the aluminum oxide layer.
Step 2 – Capacitance Changes
As moisture fills the pores, the dielectric constant changes, producing a measurable capacitance change proportional to moisture concentration.
Step 3 – Advanced HTF Design Improves Performance
Unlike conventional aluminum oxide sensors, HTF incorporates:
- Hyper-thin oxide layer
- Precisely engineered barrier layer
- Optimized pore geometry
Together these innovations improve sensitivity, speed, and long-term stability.
Our Products Powered by HTF
Hyper-Thin Layer
With our HTF Moisture Sensing Technology sensors can be produced with hyper-thin oxide layers without compromising insulation strength. The thinner oxide layer of HTF sensors results in much higher capacitance changes because capacitance is inversely proportional to the distance of the capacitor’s plates from each other. The thinner layer also means that water molecules will travel faster in and out of the pores. HTF aluminum oxide sensors therefore respond several times faster than conventional sensors.
Benefits:
- Faster response
- Higher sensitivity
- Better low-moisture measurement
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