NDLI: Precision crystal oscillator for interplanetary radio science

Content Provider	IEEE Xplore Digital Library
Author	Cloeren, J.M. Hamilton, C.
Copyright Year	1996
Description	Author affiliation: Appl. Phys. Lab., Johns Hopkins Univ., Laurel, MD, USA (Cloeren, J.M.)
Abstract	This paper describes a 4.788194-MHz crystal oscillator developed for the radio science experiments aboard the Cassini spacecraft. The oscillator contains a bus voltage converter, stress-compensated resonator oscillator assembly, temperature controller, a single-stage oven, titanium vacuum flask, /spl times/24 frequency multiplier, magnetic shielding, three-axis vibration isolators, and two well-isolated buffer amplifiers. Power consumption is less than 2.8 W at +20/spl deg/C. The oscillator is housed in a 81-in/sup 3/ package and has a mass of 1.78 kg. The design of this oscillator originated with Peter G. Sulzer in the late 1960s and was later translated for space flight by Jerry R. Norton and James M. Cloeren at The Johns Hopkins University Applied Physics Laboratory (JHU/APL). This work at JHU/APL has produced oscillators with outstanding performance for many spacecraft with widely diverse missions. Details of the Cassini radio science mission are presented to delineate the scientific needs that drove the design of the oscillator.
Starting Page	761
Ending Page	766
File Size	576591
Page Count	6
File Format	PDF
ISBN	0780333098
DOI	10.1109/FREQ.1996.560252
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space vehicles Voltage-controlled oscillators Assembly Stress control Temperature control Voltage control Ovens Titanium Frequency conversion Magnetic shielding
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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