Environmental laboratory
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Ocean Optics (Netherlands) has added triggering functions to its popular USB2000+ miniature spectrometer to provide accurate timing and synchronisation between the spectrometer and other devices. Four low-jitter trigger modes and normal (free-running spectral acquisition) operating modes are now possible. Applications include pulsing a light source to occur when acquiring a spectra and synchronising spectral acquisition to coordinate with samples moving through a process stream or sensors reaching a certain temperature level.
Triggering provides precise timing between devices. The USB2000+ can be triggered so that sending the spectrometer a pulse causes it to do something such as a turn off or on a light, activate a pulse in a pulsed light source or start or end spectral acquisition in the spectrometer. For example, in the USB2000+ External Triggering mode, an event outside the sampling system (such as a button push, lever activation or laser) electronically pulses the spectrometer’s trigger pin and starts acquisition of the spectra with microsecond accuracy.
The USB2000+ has an onboard programmable high-speed FPGA controller, 22-pin connector and 8 user-programmable digital I/Os.
IET 36.3 May