Boots – shoes – and leggings
Patent
1988-03-15
1989-11-14
MacDonald, Allen
Boots, shoes, and leggings
331 90, 315 3955, H03B 910, H01J 2550
Patent
active
048811629
ABSTRACT:
A frequency control system is provided for controlling the radio frequency of a mechanically tuned coaxial magnetron under a wide variety of environmental conditions by initially tuning the magnetron according to resident tuning data and in response to a received frequency command signal, directly measuring the frequency of the magnetron output, comparing the frequency command signal with the actual frequency of each of a series of sampled output pulses, modifying a dynamically adapting calibration function according to any differences found during the comparison, retuning the magnetron according to the modified calibration function, and repeating the process to maintain the magnetron output frequency in agreement with frequency command signals. The coefficients of the calibration function converge to an optimum set of values within a few pulses. Frequency offset can be effectively corrected with the measurement of one pulse; and other frequency control characteristics, such as slope and nonlinearity, can be corrected with the measurement of but a few more at different frequencies.
REFERENCES:
patent: 4636750 (1987-01-01), England
patent: 4748424 (1988-05-01), England
LTV Aerospace & Defense Co.
MacDonald Allen
LandOfFree
Frequency control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Frequency control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1856077