Some background information for one of the multiple Viaspace products. Viaspace is one (the main one) of my 2009 predictions stated earlier in this thread.
As advances in measurement technology provide us with greater capabilities, the ability for more accurate testing and monitoring of gaseous water vapor content has grown. VIASPACE is leading the humidity sensing market with the recently introduced HS-1000 and HS-2000 Humidity Sensors. These devices provide unequalled testing and measurement accuracy, consistency, and reliability.
The VIASENSOR HS-1000 provides:
Accurate, rapid and reliable readouts of water vapor content in a given space
In-line testing functionality for small or large applications
Measurement range from 40 to 1000 millibar (30° C to 100° C dew point)
Real-time Data Plotting Software
Response time as fast as 0.8 seconds
Measurements that are independent of gas composition, pressure, or flow rates
The ability to test with confidence in a wide range of conditions including temperature, humidity, and gas flow rates.
The VIASENSOR HS-2000 Provides:
all of the features of the HS-1000 plus a measurement range of 80 to 2000 millibar (40° C to 120° C dew point).
Fuel Cell Development
The HS-1000 VIASENSOR provides an improved, new capability vital to designers of Hydrogen fuel cells of all sizes and applications. Covering a broad spectrum of temperature (30°-100°C), the in-situ installation of the laser-based sensor head of the HS-1000 enables extremely precise readings of the molecular absorption of water vapor. Readings can be taken every 1-2 seconds to provide fuel cell designers with a continuous flow of accurate measurement of dew point and/or relative humidity via straight forward connection to any computer. The HS-1000 is both compact and lightweight, enabling its use in virtually any lab environment and simplifying data collection of a variety of experiments and/or validation tests.
Fuel Cell Production
The HS-1000 VIASENSOR uses a non-contact, flow-through design to eliminate impact of contaminants in the gas, sensor damage or any drift in readings, even after accidental condensation on a sample cell. This stability of calibration is designed to last for an extensive amount of time with no maintenance required. The HS-1000 is also ideally suited for in-line validation of fuel cell performance on the production floor, as well as in the development lab. It can also supply a steady stream of real-time data for a wide variety of statistical analysis needed to ensure consistency of fuel cell performance.
Fuel Cell Systems Maintenance
The HS-1000 VIASENSOR is a compact (15cm x 15cm x 5cm), lightweight (under 1 kg), highly accurate instrument that can be connected to virtually any laptop computer via the RS-232 serial port. Its calibration is designed to be literally maintenance free, making the HS-1000 the ideal instrument to measure the continued quality of gases flowing into hydrogen fuel cells via a T-connection to provide temporary gas or air line diversion and analysis in the field. The HS-1000 can also be modified to accept temporary, portable power from common ports found in most automotive vehicles today, enabling its use in remote or difficult access sites as well.
The HS-1000 VIASENSOR uses a laser-based design that is independent of a particular gas composition or pressure in order to make measurements. There is negligible interference or drift from foreign elements of combustion or other contaminants, allowing the VIASENSOR to accurately measure the molecular absorption of water vapor in high temperature environments, such as analysis of a variety of combustion gases. The HS-1000 is not affected by common contaminants found in those environments, permitting a continuous, real-time plotting of dew point in high temperature applications. The HS-3000 uses the same non-contact laser absorption spectroscopy technology as the other members of the VIASENSOR Product Family. This model has been optimized to cover the range of water vapor concentration typically found in products of the combustion of hydrocarbons with air. This is particularly useful in measuring the water vapor content of the exhaust of an internal combustion engine during its warm-up period. Without this measurement it is nearly impossible to convert the concentrations of other exhaust gases to a "dry basis" as usually required by regulatory agencies.