User Manual X8400 sc
40
6.9 Lockin
General
Lock-in technique is commonly used in thermography to improve the sensitivity of the camera
and extract from the thermal signal the thermal effects correlated to an external excitation in
the material under evaluation.
The X8400sc camera features a lock-in signal input BNC connector on the back panel of the
camera (ref 7 on Figure 2: Camera back panel description).
The value of the signal is digitalized during the integration of the infrared image and
embedded within it. It is then recorded by ResearchIR Max and stored in the sequence file
image headers.
Files recorded with ResearchIR Max can then be exploited with FLIR Thesa software. Please
contact your FLIR representative for further information.
Characteristics
Name
Value
Amplitude
150 mV <V
lockin
< 10 V
Frequency
10 mHz < F
lockin
< 6 kHz
Maximum signal offset sweep rate
½ amplitude per period
Impedance
High Z
Protection
Peak Voltage 500 V
Clamping Voltage 150 V
Rated Voltage 24 V
ESD Contact 8 kV
ESD Air 15 kV
Connector type
Coaxial BNC Jack
