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Home > Frequently Asked Questions > Products > Spectrometers > What is thermal wavelength stability in spectrometers?

What is thermal wavelength stability in spectrometers?

Stability is a broad term that encompasses various elements of the spectrometer system, including the optical bench, electronics and light source. More specifically, thermal wavelength stability in spectrometers is a measure of the change in specifications (performance) at various temperatures; thermal stability is typically expressed in pixels per °C for a passive device or as +/- °C per setpoint temperature with an active device.

Ocean Optics provides three primary options for maintaining thermal stability in spectrometers:

  • Temperature Controllers are active devices for controlling temperature. Our USB-TC is an attachable device for our Flame and USB series spectrometers.
  • In Passive Temperature Stabilization, the spectrometer’s design promotes stability. For example, Flame-S spectrometer has an optical bench design that minimizes temperature-related instability.
  • The Procedural Approach uses experiment controls to mitigate the effects of temperature variation. Examples include taking frequent reference and dark measurements, integrating reference monitoring into the procedure and using electrical dark correction.
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SteadiQ

SteadiQ

Reliable Results Regardless of Environmental Conditions
NIRQuest (Custom)

NIRQuest (Custom)

Custom configured for Near-Infrared Measurements
USB2000+ (Custom)

USB2000+ (Custom)

Custom Configured Spectrometer for Setup Flexibility
USB4000 (Custom)

USB4000 (Custom)

Custom Configured for Maximum Flexibility