High resolution time interval meter
Abstract
Method and apparatus are provided for measuring the time interval between two events to a higher resolution than reliability available from conventional circuits and component. An internal clock pulse is provided at a frequency compatible with conventional component operating frequencies for reliable operation. Lumped constant delay circuits are provided for generating outputs at delay intervals corresponding to the desired high resolution. An initiation START pulse is input to generate first high resolution data. A termination STOP pulse is input to generate second high resolution data. Internal counters count at the low frequency internal clock pulse rate between the START and STOP pulses. The first and second high resolution data are logically combined to directly provide high resolution data to one counter and correct the count in the low resolution counter to obtain a high resolution time interval measurement.
- Inventors:
- Issue Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 6535960
- Application Number:
- ON: DE87007246
- Assignee:
- Dept. of Energy
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; TIME INTERVAL ANALYZERS; TIME RESOLUTION; TIMING CIRCUITS; COUNTING CIRCUITS; DELAY CIRCUITS; FLIP-FLOP CIRCUITS; GATING CIRCUITS; GHZ RANGE; INTEGRATED CIRCUITS; TIME MEASUREMENT; ELECTRONIC CIRCUITS; FREQUENCY RANGE; MEASURING INSTRUMENTS; MICROELECTRONIC CIRCUITS; MULTIVIBRATORS; PULSE CIRCUITS; RESOLUTION; TIMING PROPERTIES; 420800* - Engineering- Electronic Circuits & Devices- (-1989)
Citation Formats
Martin, A D. High resolution time interval meter. United States: N. p., 1986.
Web.
Martin, A D. High resolution time interval meter. United States.
Martin, A D. Fri .
"High resolution time interval meter". United States.
@article{osti_6535960,
title = {High resolution time interval meter},
author = {Martin, A D},
abstractNote = {Method and apparatus are provided for measuring the time interval between two events to a higher resolution than reliability available from conventional circuits and component. An internal clock pulse is provided at a frequency compatible with conventional component operating frequencies for reliable operation. Lumped constant delay circuits are provided for generating outputs at delay intervals corresponding to the desired high resolution. An initiation START pulse is input to generate first high resolution data. A termination STOP pulse is input to generate second high resolution data. Internal counters count at the low frequency internal clock pulse rate between the START and STOP pulses. The first and second high resolution data are logically combined to directly provide high resolution data to one counter and correct the count in the low resolution counter to obtain a high resolution time interval measurement.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {5}
}