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8
Radiometric measurement
8.7.2.3 LED description
LED status
Off
Blinking Green
Green
8.8 Trigger In
8.8.1 General
Trigger In is used to tag images in the camera so that they are recorded by the software.
The status of the Trigger In signal at the start of integration is added to the frame header
sent to the recording software.
ΔT is a jitter of one frame period maximum. The Trigger In signal must be at least one
frame period long. All frames are sent to the computer. ResearchIR Max will start or stop
acquisition based on the Trigger In signal. This is configured in the start and stop condi-
tions on the ResearchIR Max recording tab (left panel).
When to use this configuration
• To capture a fugitive event. The camera will acquire images, but the software only re-
cords the frame of interest.
• When a precise start for the recording time is required.
• When only a few frames are needed to be recorded
When NOT to use this configuration
• When it is needed to trigger each acquisition. In that situation, it is preferable to use
the Sync In input.
8.8.2 Characteristics
Name
Amplitude
High-state minimum voltage
Low-state maximum voltage
Minimum pulse width
Impedance
#T810207; r. AA/43061/43086; en-US
Description
No signal.
Signal ready to use.
LED is blinking at the signal frequency.
Signal not usable.
Signal voltage is 5 V continuous.
Value
Rising edge TTL, 0/+5 V
>3.5 V
<0.5 V
One frame period
User selectable. 50 Ω/10 MΩ
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