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ILRS Home  Engineering Technology Timing Devices TOF Devices Manufacture Specifications Picosecond Event Timer
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| SR620 |
| HP5370B |
| Latvain Univ. A013a |
| Latvain Univ. A031 |
| IECS A032 |
| PESO Consulting PET |
| EOS MRCS |
| HTSI ET |
Picosecond Event Timer (PET)
The PicoSecond Event Timer (PET) is a epoch event counter, capable of measuring time intervals to 1.2 picoseconds (ps). There is no limit on the time interval to be measured with 2.5 Ps relative accuracy, and few Ps absolute accuracy. Four Thales, formerly Dassault Electronique, timing modules are used in the PET. One vernier is used for the start (i.e. laser fire) and three verniers are used for the 3 independent detectors. For laser ranging applications, an external timebase (frequency) should be used to maximum SLR data accuracy. A panel input lets you connect any external 10 MHz source as a timebase. Standard RS-232 interfaces control all front panel functions. The PET can act as a stand alone timer or can be optionally used in parallel with an existing SLR timing system in Portable Calibration Standard Configuration.
The Czech Technical University web page http://kfe.fjfi.cvut.cz/~blazej/en/res/prj/pet.html contains a general description of the PET in portable calibration mode.
Its ease of use and picosecond jitter and picosecond absolute accuracy are the key benefits and the reason a few ILRS stations use the PET as their primary range-measuring instrument. The prime drawback of the PET is its cost.
The General TOF Device BEST Practices also apply to the PET.
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