Simplifying Motion Control

Customer Applications

University of California Davis
Published on April 7, 2017

University of California Davis: Department of Environmental Toxicology

Customer Use Application

The Department of Environmental Toxicology at the University of California Davis uses a custom Zaber T-NA08A25 actuator as part of a custom-built mass spectrometer. The mass spectrometer was developed to measure trace gases in the atmosphere, with relevance to the study of air pollution and climate change. The Zaber actuator is mounted on the ion source housing of the spectrometer using aluminum parts that were machined especially for its dimensions. The linear motion of the actuator pushes a compressible bellows, which drives the slider to cover or expose the inlet pinhole to let in ionized ambient air into the mass analyzer.

About the Department of Environmental Toxicology, University of California Davis

The University of California (UC) Davis is a public research university located in the Northern California city of Davis. UC Davis is ranked 10th in the nation for public universities and has a world-renowned environmental chemistry program. The Department of Environmental Toxicology specializes in the study of how chemicals move in the environment and in biological systems.

The researchers at UC Davis wish to acknowledge Dr. John Crounse and Prof. Paul Wennberg at the California Institute of Technology for the design of the spectrometer.

Visit the departmental website at

Mass Spectometer Mass Spectometer