Correlator Photocor-FC
The key part of the photon correlation spectrometer is a digital real-time correlator, which defines the basic features of the particle-sizing instrument. The operation algorithm of Photocor correlators exactly corresponds to the mathematical definition of the time-dependent correlation function. It enables one to reach the highest efficiency of the signal analysis and high precision of particle sizing. State-of-the-art design of the single-board Photocor correlators is based on the latest flex-logic integrated circuits and the fast digital signal processors. The Photocor correlators are completely self-sufficient hardware devices, which accumulate data by itself without interfering with PC program operations. The correlators are optimized for light scattering applications, but they can be used as a powerful instrument of signal analysis in many others fields including velocimetry, acoustics, astronomy, etc.
The correlator Photocor-FC is a multipurpose real-time device for auto- and cross-correlation measurements built on the software-configurable flex-logic integrated circuits. A capability of further software upgrade of hardware functions is the unique feature of the Photocor-FC correlator. Currently, the software for multiple-tau and linear time-scale regimes are available. A number of real-time configurations will be developed in the nearest future (two/four correlators, analyzer of probability distribution, spectrum analyzer). Customer programs (algorithm of the device operation) will be available as well. This is the first correlator with such features. The Photocor-FC is a single-board correlator for PCI bus.
Specifications
| Processing | 32 bits |
| Input frequency | 100 MHz |
| Capacity of each channel (hardware) | 48 bits |
| Minimum sample time (true real-time operation) | 10 ns |
| Maximum sample time | 1 h |
| Number of channels | 288 |
| Multiple-tau mode | 35 sections x 8 channels, factor 2 |
| Number of monitor channels | 72 |
| Operation modes | autocorrelation; cross-correlation |
| Prescaling | not required |
| Processing algorithm | hardware |
| Living monitor of probability distribution | hardware |
| Dimensions | 125 x 110 mm |
| Power requirements | 5V x 0.5A |