Phantom Academy Brazil
Glossary
High-speed imaging glossary in Portuguese: fps, exposure, trigger, BSI, PIV, DIC, CineMag and other terms, with a direct definition for each one.
16 terms
# other characters
- .cine format
File format of Phantom cameras, with capture metadata, read by the PCC, the PCA and third-party software.
B
- BSI (back side illuminated)
Sensor architecture in which light enters from the side opposite the circuitry, increasing quantum efficiency and sensitivity in low light.
C
- CineMag
Removable Phantom memory that receives the recording from the RAM and is read in the CineStation.
D
- DIC (digital image correlation)
Technique that measures strain and displacement by comparing speckle patterns between images.
E
- Exposure
Time during which the sensor collects light in each frame; at high speed, from microseconds to nanoseconds.
F
- fps (frames per second)
Number of frames captured each second. At high speed it ranges from about 1,000 to more than 700,000 fps, depending on the resolution.
G
- Global shutter
All pixels are exposed at the same time, with no distortion of moving objects; standard in high-speed cameras.
J
- Junction Box (JB2, JB3)
Unit that distributes signal, synchronization and power to several C-Series cameras in crash testing; the JB3 supports up to 8 cameras.
P
- PCA (Phantom Cine Analyzer)
Motion analysis software that extracts displacement, velocity and acceleration from .cine files.
- PCC (Phantom Camera Control)
Software for control, capture and playback of Phantom cameras.
- PIV (particle image velocimetry)
Technique that measures velocity fields in fluids from pairs of images of particles illuminated by a laser.
- Pre-trigger
Part of the memory that keeps what happened before the trigger, thanks to circular recording.
Q
- Quantum efficiency (QE)
Fraction of the photons that the sensor converts into signal; the higher it is, the better the performance in low light and short exposures.
R
- Resolution
Number of pixels in the frame, for example 1280 x 800 (1 Mpx) or 2560 x 1664 (4.2 Mpx). Reducing the resolution increases the maximum rate.
S
- Shock rating
Maximum acceleration the camera withstands in operation; the C-Series J is rated for 170 G.
T
- Trigger
Signal that sets time zero of the recording; the camera keeps the pre-trigger and records the post-trigger.