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Tiger Optics News

Tiger Optics’ CRDS analyzers aid in international trace moisture comparison

The main mission of the world’s national metrology laboratories is to establish repeatable and comparable measurement standards across the globe. Measuring trace water vapor in gases is of particular interest because many industries, from industrial gas to semiconductor, depend on this critical measurement. In a recently published international comparison between eight leading national laboratories from Europe, Asia and South America, the labs tested their analytical capabilities in measuring ppm-levels of moisture in nitrogen. Different analytical methods were employed, but most labs relied on Tiger’s robust and easy to use Cavity Ring-Down Spectroscopy (CRDS) technology, with the Dutch VSL, the UK’s NPL, Brazil’s INMETRO, the Swiss METAS and China’s NMI all using various generations of Tiger Optics analyzers. This experiment highlights once again the important role that Tiger’s trace moisture analyzers have played for many years in the metrology community and how our instruments help to obtain an exact analysis with ease. As a company dedicated to precision measurement, we are proud to be able to support the world’s leading NMIs in their important mission.

Quarterly Newsletter 2018 Fall
November 2018
INRiM researchers develop new low-frost-point generator

All of the world’s leading metrology labs provide a primary reference for water vapor to be able to calibrate humidity sensors against a well-defined and stable standard. Most of these primary references are designed for moisture concentrations and pressures that are more typical for the lower atmosphere. The national metrology institute of Italy, INRiM, took a new approach to provide a primary reference for moisture concentrations that are lower than typical, as demonstrated in their recent publication in Measurement Science and Technology*. This new low frost-point generator is intended for the calibration of humidity sensors designed for conditions in the upper atmosphere, and covers the frost point range from -100°C to -20°C.

To evaluate their new standard, INRiM researchers relied on a pair of Tiger Optics CRDS trace moisture analyzers, one HALO RP analyzer for lower H2O concentrations and one Spark analyzer for the higher range. Both analyzers showed excellent agreement. All measurements are also consistent with the expected value within the reported measurement uncertainty, providing researchers an easy and reliable initial evaluation of their new generator.

*R. Cuccaro et al., Meas. Sci. Techn. 29, 054002 (2018),

Press Releases

Tiger Optics introduces HALO KA Max analyser for ultra-low detection limits
July 2018
Tiger Optics to Showcase Three New Products at SEMICON West

San Francisco, CA (July 11, 2017)— With three new products, Tiger Optics LLC demonstrates its abiding commitment to help Semiconductor manufacturers perfect the exacting techniques of advanced device fabrication. The company will display its HALO QRP moisture analyzer at the SEMICON West show (July 11-13) and introduce two new products to monitor for airborne molecular contaminants (AMC).

Tiger Optics Salutes NASA’s Successful Juno Mission

Warrington, PA (September 21, 2016) – Along with NASA scientists, Tiger Optics LLC had reason to cheer when the Juno spacecraft successfully entered Jupiter’s orbit in July, capping its five-year journey from Cape Canaveral. Prior to Juno’s launch on August 5, 2011, a Tiger Optics trace-gas analyzer helped NASA keep the scientific payload in prime condition.

As demonstrated in the Juno mission, Tiger Optics’ HALO trace-gas analyzer plays a critical role in detecting contaminants that could compromise the performance of scientific instruments in space. Such scientific instruments are designed to operate in the vacuum of space, in the absence of chemicals present in the earth’s atmosphere: water, oxygen, and particulate matter. Prior to launch, the spacebound instruments must be protected from earthly contaminants by storing the payload under a flow of high-purity inert gas. Nitrogen is usually the inert gas chosen for the task. Typically, the moisture level in NASA’s high-purity nitrogen must be kept under 1 ppm. Tiger Optics’ HALO H2O analyzer comfortably handled that requirement for the Juno mission, because the device measures moisture in a range from 2 ppb to 20 ppm.

After Juno entered Jupiter’s orbit on July 4, NASA scientists powered up the science instruments aboard the spacecraft for its first close “flyby” of the planet on August 27. On September 2, NASA reported that all eight of Juno’s science instruments were successfully energized and collecting data. Indeed, on the first of 36 scheduled orbital flybys, six megabytes of data were collected during the sixhour transit of the spacecraft from above Jupiter’s north pole to below its south pole. While analysis of the data is ongoing, NASA quickly published the first-ever images of Jupiter’s north pole.

“Tiger Optics is honored that its technology is trusted to support our nation’s journey into the frontiers of space,” said Lisa Bergson, Tiger Optics’ chief executive.

About Tiger Optics

Founded in 2001, Tiger Optics offers a wide and proven array of gas analyzers, as well as atmospheric and environmental monitors. From the cleanest of semiconductor fabs to the harshest coal-fired stacks, our analyzers work to improve yields, reduce costs and ease the burdens of regulatory compliance.



Jerry Riddle

President Tiger Optics, LLC or (215) 343-6600, extension 147

September 2016

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