Electron-optical camera for digital recording of high-speed fracture processes and structural transformations in materials

The camera K008 BIFO Company is intended for recording of images and measuring of spatial-temporal parameters of high-speed processes in the visible and near infrared spectral range in a single-frame mode and single-streak mode of sweeping the image under study. The image at the camera output is recorded with the aid of a CCD readout unit and is entered into a personal computer.
Camera in the laser-interferometric complex provides an opportunity to conduct research in various areas:
  • registration elastoplastic and strength properties of materials;
  • shock waves physics;
  • electric breakdowns and discharges including lightning;
  • investigations of combustion processes, detonation, explosion, as well as scattering of ground and fields of fragments and other particles, etc.


Linear sweep process of crack propagation in PMMA obtained using the shadow method

Some characteristics of the camera:
Spectral sensitivity rangetyp400-800nm
Sweep timemin
max		2.0
0.6		ns/full screen
ns/full screen
Temporal resolution in streak mode ( λ  = 800 nm )typ20ps
Frame durationmin
max		10
0.6		ns
ms
Sweep nonlinearitymax3%
Delay time ( fastest range ):
slow control unit
fast control unit
max
max
220
35
ns
ns
Repetition rate of control unitsmax10Hz
Conversion coefficient ( λ  = 480 nm )typ5000W/W
Useful input area: 
slit length ( streak mode ) 
frame size ( frame mode )
max
max
20
20x15
mm
mm BI
Dynamic spatial resolution : 
slow control unit
fast control unit
typ
min
20
10
I.p./mm
I.p./mm