Oscillographic scale-time transformer
Application
Single and infrequent pulses with 0.1 … 100 V amplitude and 2·10-10…5·10-7s length detection.
Principle of operation
Time-scale transformer is a complex, consists of PC with TV I/O and transforming unit, fast oscillograph DDD and TV camcorder with CCD-matrix. Special software module form pulse signal for oscillograph preparing for realization registration for processes synchronizing, then form a signal for external devices to start. Taken oscillogram image is extracted from registered continuity, than filtered and vectorized. One can automatically transfer estimated values in PC net.
Developed registered oscillogram geometrical errors correction method ensure registered signal estimates error less than 2%. This allow us to use scale-time transformer as master gage.
Time-scale transformer
Oscillogram image
Samples of registrated signal
Characteristics
| Transform channels number | 1 |
| Input resistance, Ohm | 50 |
| Transient characteristic rising time, s | 8·10-10 |
| Vertical deflection canal bandwidth, GHz | 0 ... 5 |
| Maximum transform responsivity, V/count | 2·10-2 |
| Sampling minimum period, s | 2·10-12 |
| Signal time samples number | 600 |
| Quantizing level numbers | 400 |
References
- P.V. Arakcheev, "Wideband signals oscilograms processing peculiarities" // International Informatisation Forum: Proceedings of international conference «Informational methods and technology» – M.: «Stankin», 2000. – Vol. 1.
Русский