dji Zenmuse XT User Manual - Page 12

Browse online or download pdf User Manual for Action Cameras dji Zenmuse XT. dji Zenmuse XT 17 pages. Flir camera
Also for dji Zenmuse XT: User Manual (18 pages), Quick Start Manual (8 pages)

Print Page

ZENMUSE XT User Manual

White Hot Isotherm

Fusion Isotherm

Spot Meter

The Zenmuse XT can measure the average temperature of the 4×4 pixels in the center of an image

with an accuracy of ±20˚C in High Gain mode, and an accuracy of 20% of the entire temperature

range or 20˚C (whichever is greater) in Low Gain mode.

The spot meter's measurement accuracy is affected by various factors:

1) Reflectivity of objects - shiny metals with high reflectivity will reflect more of the background

radiation, and result in a larger error; objects with matte surfaces will produce a higher accuracy.

2) Temperature of background radiation - a sunny day without clouds will have less of an effect on

the accuracy than a cloudy day.

3) Air temperature and humidity - the higher the temperature and humidity, the lower the accuracy.

4) Distance between camera and object - the shorter the distance, the higher the accuracy.

5) Emissivity of objects - the higher the emissivity, the higher the accuracy.

Gain Modes

High Gain Mode: The camera covers a smaller temperature range but is more sensitive to

temperature differences.

Low Gain Mode: The camera covers a wider temperature range but is less sensitive to temperature

differences.

Auto Gain Mode (Default): The camera will automatically select the optimal gain mode according to

the temperature range of the image.

FFC Calibration

Black Hot Isotherm

Rainbow Isotherm