Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
Book Description
The U.S. Army Research Laboratory (ARL), specifically the RF Electronics Division of the Sensors and Electron Devices Directorate, has been tasked to become the Department of Defense (DoD) center for frequency control. As part of this program, ARL and others will develop frequency oscillators to be used as system clocks in munitions and other devices. ARL has assembled a test facility to measure the effects of vibration on frequency oscillators. This report discusses the results of vibration experiments on two quartz crystal oscillators, including verification of the measurement system and experimental setup.
Quartz Crystal Oscillator Vibration Measurements
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
Book Description
The U.S. Army Research Laboratory (ARL), specifically the RF Electronics Division of the Sensors and Electron Devices Directorate, has been tasked to become the Department of Defense (DoD) center for frequency control. As part of this program, ARL and others will develop frequency oscillators to be used as system clocks in munitions and other devices. ARL has assembled a test facility to measure the effects of vibration on frequency oscillators. This report discusses the results of vibration experiments on two quartz crystal oscillators, including verification of the measurement system and experimental setup.
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
Book Description
The U.S. Army Research Laboratory (ARL), specifically the RF Electronics Division of the Sensors and Electron Devices Directorate, has been tasked to become the Department of Defense (DoD) center for frequency control. As part of this program, ARL and others will develop frequency oscillators to be used as system clocks in munitions and other devices. ARL has assembled a test facility to measure the effects of vibration on frequency oscillators. This report discusses the results of vibration experiments on two quartz crystal oscillators, including verification of the measurement system and experimental setup.
Quartz Crystal Oscillator Vibration Measurements
Author: Mark Berry
Publisher:
ISBN: 9781423532026
Category :
Languages : en
Pages : 94
Book Description
The U.S. Army Research Laboratory (ARL), specifically the RF electronics Division of the Sensors and Electron Devices Directorate, has been tasked to become the Department of Defense (DoD) center for frequency control. As part of this program, ARL and others will develop frequency oscillators to be used as system clocks in munitions and other devices. ARL has assembled a test facility to measure the effects of vibration on frequency oscillators. This report discusses the results of vibration experiments on two quartz crystal oscillators, including verification of the measurement system and experimental setup.
Publisher:
ISBN: 9781423532026
Category :
Languages : en
Pages : 94
Book Description
The U.S. Army Research Laboratory (ARL), specifically the RF electronics Division of the Sensors and Electron Devices Directorate, has been tasked to become the Department of Defense (DoD) center for frequency control. As part of this program, ARL and others will develop frequency oscillators to be used as system clocks in munitions and other devices. ARL has assembled a test facility to measure the effects of vibration on frequency oscillators. This report discusses the results of vibration experiments on two quartz crystal oscillators, including verification of the measurement system and experimental setup.
Technical Abstract Bulletin
Author: Defense Documentation Center (U.S.)
Publisher:
ISBN:
Category : Military art and science
Languages : en
Pages : 1746
Book Description
Publisher:
ISBN:
Category : Military art and science
Languages : en
Pages : 1746
Book Description
The Shock and Vibration Digest
Crystal Oscillator Design and Temperature Compensation
Author: Marvin Frerking
Publisher: Springer Science & Business Media
ISBN: 9401160562
Category : Science
Languages : en
Pages : 252
Book Description
Crystal oscillators have been in use now for well over SO years-one of the first was built by W. G. Cady in 1921. Today, millions of them are made every year, covering a range of frequencies from a few Kilohertz to several hundred Mega hertz and a range of stabilities from a fraction of one percent to a few parts in ten to the thirteenth, with most of them, by far, still in the range of several tens of parts per million.Their major application has long been the stabilization of fre quencies in transmitters and receivers, and indeed, the utilization of the frequency spectrum would be in utter chaos, and the communication systems as we know them today unthinkable,'without crystal oscillators. With the need to accommodate ever increasing numbers of users in a limited spectrum space, this traditional application will continue to grow for the fore seeable future, and ever tighter tolerances will have to be met by an ever larger percentage of these devices.
Publisher: Springer Science & Business Media
ISBN: 9401160562
Category : Science
Languages : en
Pages : 252
Book Description
Crystal oscillators have been in use now for well over SO years-one of the first was built by W. G. Cady in 1921. Today, millions of them are made every year, covering a range of frequencies from a few Kilohertz to several hundred Mega hertz and a range of stabilities from a fraction of one percent to a few parts in ten to the thirteenth, with most of them, by far, still in the range of several tens of parts per million.Their major application has long been the stabilization of fre quencies in transmitters and receivers, and indeed, the utilization of the frequency spectrum would be in utter chaos, and the communication systems as we know them today unthinkable,'without crystal oscillators. With the need to accommodate ever increasing numbers of users in a limited spectrum space, this traditional application will continue to grow for the fore seeable future, and ever tighter tolerances will have to be met by an ever larger percentage of these devices.
Scientific and Technical Aerospace Reports
Electronic Distance Measurement
Author: Jean M. Rüeger
Publisher: Springer Science & Business Media
ISBN: 3642971962
Category : Science
Languages : en
Pages : 304
Book Description
The book has evolved from the author's continuing teaching of the subject and from two editions of a text of the same title. The first edition was published in 1978 by the School of Surveying, Universi ty of New South Wales, Sydney, Australia. Like its predecessors, this totally revised third edition is designed to make the subject matter more readily available to students proceeding to degrees in Survey ing and related fields. At the same time, it is a comprehensive refer ence book for all surveyors as well as for other professionals and scientists who use electronic distance measurement as a measuring tool. Great emphasis is placed on the understanding of measure ment principles and on proper reduction and calibration pro cedures. It comprises an extensive collection of essential formulae, useful tables and numerous literature references. After a review of the history of EDM instruments in Chapter 1, some fundamental laws of physics and units relevant to EDM are revised in Chapter 2. Chapter 3 discusses the principles and applica tions of the pulse method, the phase difference method, the Doppler technique and includes an expanded section on interferometers. The basic working principles of electro-optical and microwave distance meters are presented in Chapter 4, with special emphasis on modu lation/demodulation techniques and phase measurement systems. Important properties of infrared emitting and lasing diodes are discussed.
Publisher: Springer Science & Business Media
ISBN: 3642971962
Category : Science
Languages : en
Pages : 304
Book Description
The book has evolved from the author's continuing teaching of the subject and from two editions of a text of the same title. The first edition was published in 1978 by the School of Surveying, Universi ty of New South Wales, Sydney, Australia. Like its predecessors, this totally revised third edition is designed to make the subject matter more readily available to students proceeding to degrees in Survey ing and related fields. At the same time, it is a comprehensive refer ence book for all surveyors as well as for other professionals and scientists who use electronic distance measurement as a measuring tool. Great emphasis is placed on the understanding of measure ment principles and on proper reduction and calibration pro cedures. It comprises an extensive collection of essential formulae, useful tables and numerous literature references. After a review of the history of EDM instruments in Chapter 1, some fundamental laws of physics and units relevant to EDM are revised in Chapter 2. Chapter 3 discusses the principles and applica tions of the pulse method, the phase difference method, the Doppler technique and includes an expanded section on interferometers. The basic working principles of electro-optical and microwave distance meters are presented in Chapter 4, with special emphasis on modu lation/demodulation techniques and phase measurement systems. Important properties of infrared emitting and lasing diodes are discussed.
Publications
Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 362
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 362
Book Description
Publications of the National Bureau of Standards ... Catalog
Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category :
Languages : en
Pages : 356
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 356
Book Description
Publications of the National Institute of Standards and Technology ... Catalog
Author: National Institute of Standards and Technology (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 532
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 532
Book Description