Ocean Optics Adds New Triggering Options to USB2000+ Spectrometer

Popular miniature spectrometer offers more spectral acquisition flexibility than ever
Dunedin, FL (July 22, 2011) – Ocean Optics has added triggering functions to its popular USB2000+ miniature spectrometer to provide accurate timing and synchronization 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 synchronizing spectral acquisition to coordinate with samples moving through a process stream or sensors reaching a certain temperature level.

ring functions in the USB2000+ can be used to synchronize spectral acquisition with the operation of devices such as a laser.

ring functions in the USB2000+ can be used to synchronize spectral acquisition with the operation of devices such as a laser.

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. Available operating modes are Normal (spectrometer continuously acquires spectra) and the four trigger modes:

  • External Software Trigger. While the spectrometer is in free-running mode, data collected in the period up to the triggering event is transferred to software.
  • External Hardware Level Trigger. The spectrometer waits for a sharp rise in voltage on the trigger input pin, and then acquires spectra until the voltage is removed.
  • External Synchronous Trigger. Spectrometer acquires data from an external trigger event (such as a push button) until the next time the trigger is activated, at which time the spectrometer ceases spectral acquisition and begins a new acquisition. Integration time cannot be set, and is the effective period between triggers.
  • External Hardware Edge Trigger. The spectrometer waits for a sharp rise in voltage on the trigger input pin, and then acquires one spectrum. One spectrum will be acquired for each trigger unless an acquisition is already in progress.

The USB2000+ is among the most popular miniature spectrometers in the world. Its small-footprint, high-speed CCD-array design is ideal for a wide range of applications. Modular optical bench accessories (entrance apertures, order sorting filters and more) make it possible to configure the USB2000+ for hundreds of different applications.

6 Responses to “Ocean Optics Adds New Triggering Options to USB2000+ Spectrometer”

  1. Ahmet Eren Sonmez says:

    What is the last firmware version?

  2. Ricardo says:

    Hello Ahmet,

    Thank you for your inquiry.

    The latest version are: FPGA is 3.03.9 and the version of FX/2 is 3.00.4. You must also have a version of SpectraSuite that was released in or after July of 2011.

    Please let us know if you have any questions.

    Thank you,

  3. Jojo says:

    Please tell me how to trigger externally a HR-4000 spectrometer (ocean optics). I have the cable with 30 slots like a serial port. how can i use it.

    please describe it simply.
    Best Regards,

  4. Lisa Wallner says:

    Your query has been forwarded to customer support. Someone should be in touch with you directly soon.

  5. Samantha O. says:

    To whom it may concern,

    I am currently trying to synchronize a stepwise motor with the USB2000 spectrometer’s acquisition. This is to say I would like to synchronize the spectrometer so that it only acquires spectra when in place. The motor moves a cable to 3 separate fiber bundles which are the locations I would like the spectrometer to acquire data. Rather than it acquiring spectra continuously as the motor moves the cable to the next fiber bundle. What triggering would be best for this? I had found an article describing how to set up external triggering but it was outdated and involved OOIBase32 software.

    I would greatly appreciate guidance on how to set up this sort of triggering.

    Thank you,

    Samantha O.

  6. Lisa Wallner says:

    Hi Samantha,
    I’ve forwarded your question to our applications team and they will follow up asap.

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