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Advanced Thermal Solutions SC5000 User Manual

DCOO2U-L SC5000 User Manual Page 15

6.4. IRIG-B Time Stamping (Optional)

IRIG-B is a timing signal commonly used to synchronize and timestamp several

peripherals and devices together. This amplitude modulated signal is generated

either by a GPS receiver or by a time generator device.

When connected to a SC5000 series camera, the signal is decoded and

timestamps each image acquired. This time stamp is integrated into the

information line of each image and stored by Altair software into the

sequences. This allows an ultra precise time stamping of the image.

Altair automatically recognizes images embedding IRIG-B information, thus

avoiding any complicated setup. If no valid signal is available on the camera,

Altair software automatically selects the PC time as the time stamp reference

for the acquisitions.

The IRIG-B signal characteristics are:

 Carrier 1 KHz

 Modulation ratio 3:1

 Amplitude 3Vpp on the Mark Pulse

 Code supported

 IRIGB122 format (BCD_TOY)

 IRIGB126 format (BCD_TOY + BCD_YEAR)

 Time stamping accuracy: 10µs

Most IRIG-B generators deliver a signal called “1PPS” for “1 Pulse Per Second”.

This signal is synchronized to the beginning of each frame.

To use the IRIG-B option, you need an X0904 cable linked to the SC5000 lockin

connector. Please note that Rand2 isn’t available with the IRIG-B option.

FLIR SC5000 User Manual

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