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dc.contributor.advisorShreeve, Raymond P.
dc.contributor.authorMcCarville, Patrick Anthony
dc.dateJune 1981
dc.date.accessioned2012-11-20T00:16:33Z
dc.date.available2012-11-20T00:16:33Z
dc.date.issued1981-06
dc.identifier.urihttp://hdl.handle.net/10945/20545
dc.description.abstractModification of the phase lock loop synchronizing circuits and of the method of input/output communication used in a synchronized data sampling system, are reported. A device known as PACER which used an analog phase lock loop for synchronization and produced a non linear set of synchronizing pulses, was modified to use a CMOS digital phase lock loop, resulting in a linear set of pulses. The associated programming which controlled the data acquisition process and sequencing, was changed to use the direct memory access feature of the system computer. This enabled data, from high response pressure transducers mounted in a turbomachine, to be taken once every rotor revolution rather than once every ten revolutions. A user's manual for paced data acquisition is included.
dc.description.urihttp://archive.org/details/hardwarendsoftwa1094520545
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
dc.subject.lcshAeronauticsen_US
dc.titleHardware and software improvements to a paced data acquisition system for turbomachinesen_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentAeronautics
dc.subject.authorProgrammableen_US
dc.subject.authorSynchronized sampling
dc.subject.authorDigital phase lock loop
dc.subject.authorDirect memory access
dc.description.serviceLieutenant Commander, United States Navyen_US
etd.thesisdegree.nameM.S. in Aeronautical Engineering
etd.thesisdegree.levelMasters
etd.thesisdegree.disciplineAeronautical Engineering
etd.thesisdegree.grantorNaval Postgraduate School
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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