| Evaluation of Minuteman Accelerometer Instrumentation. |
OCT 1973 |
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| Authors:
Mahendra Kumar Patel; David G. Chazen; AIR FORCE WEAPONS LAB KIRTLAND AFB N MEX
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 | Various tests were performed to determine the capabilities and limits of piezoresistive accelerometers. Macroscopic, static, and dynamic tests were conducted on all accelerometers before and after the environmental tests (electrical, humidity, and temperature). The accelerometers were overranged to check their overrange performance characteristics. |
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| Development of Accelerometer for Air-to-Surface Missile Inertial Systems. |
SEP 1973 |
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| Authors:
Clive A. Affleck; Victor T. Carbone; BELL AEROSPACE CO BUFFALO NY
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| The work covered by this report is the fourth phase in a program to develop a 2-Axis Accelerometer with relatively high performance that can be quantity produced at a very low unit cost. Prior phases were reported in AFAL-TR-68-273 and AFAL-TR-71-208. This phase of the development was primarily concerned with designing, fabricating and testing two prototype instruments for delivery to Holloman AFB for independent evaluation. The report tabulates and discusses ... |
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| Theoretical Analysis of a Triaxial System of Velocity Gages. |
SEP 1972 |
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| Authors:
Paul N. Sonnenburg; NEW MEXICO UNIV ALBUQUERQUE ERIC H WANG CIVIL ENGINEERING RESEARCH FACILITY
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| An analytical study was made of a triaxial system of pendulum type velocity gages. These gages are to be arranged in a canister and placed in an earth medium to record field particle velocities resulting from an explosion. The purpose of this study was (1) to determine the effects of cross-axis sensitivity of the gages, (2) to estimate the errors associated with linearizing the governing equations when finite pendulum angles ... |
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| Accelerometer Catalog. |
MAR 1971 |
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| Authors:
R. A. Shunk; NEW MEXICO UNIV ALBUQUERQUE ERIC H WANG CIVIL ENGINEERING RESEARCH FACILITY
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| This accelerometer catalog contains a list of accelerometers which could be used in HEST testing. Structural and free-field measurement requirements were considered. All listed transducers are advertised on the open market. (Author) |
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| Reducing Nonlinear Accelerometer Calibration Data Using an on-Line Digital Computer. |
JUN 1970 |
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| Authors:
James W. Patmore; STANFORD UNIV CA DEPT OF AERONAUTICS AND ASTRONAUTICS
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| The report describes the analytic and computational procedures used with the flotation technique of calibrating low-level accelerometers in the laboratory. The system parameters are estimated from the calibration data using the classical least-squares method. The variance of the estimated parameters is a function of the independent variables. An algorithm is described with which the computer can direct the experimenter to take data that will almost minimize the sum of the ... |
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| INSTRUMENTATION FOR MEASUREMENT OF VESTIBULAR-SIGNIFICANT FORCES IN HELICOPTERS. |
MAY 1968 |
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| Authors:
W. Carroll Hixson; Jorma I. Niven; NAVAL AEROSPACE MEDICAL INST PENSACOLA FLA
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| The report describes an airborne instrumentation system developed at minimal cost from standard, commercially available components for the in-flight acquisition and storage of helicopter low-frequency motion data pertinent to the investigation of vestibular-related pilot disorientation. System components provided to measure and record the instantaneous triaxial linear acceleration and instantaneous triaxial angular velocity of the aircraft at a given crew station include three potentiometer readout linear accelerometers, three similar gimballess rate ... |
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| A TRIAXIAL ACCELEROMETER MODULE FOR VESTIBULAR APPLICATION. |
MAY 1968 |
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| Authors:
W. Carroll Hixson; NAVAL AEROSPACE MEDICAL INST PENSACOLA FLA
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| A brief description is given of a 6-channel instrumentation module developed for collection of preliminary acceleration data for the a priori determination of optimal characteristics for transducers to be installed permanently on various aircraft and man-rated research devices for the measurement of vestibular-significant acceleration stimuli. The module utilizes three linear and three angular accelerometers, all of the standard, commercially available, servo type, to measure the triaxial linear and triaxial angular ... |
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| DERIVATION OF VELOCITY CHANGE FROM ACCELEROMETER RECORDINGS, |
25 SEP 1967 |
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| Authors:
G. Stathopoulos; NAVAL ORDNANCE LAB WHITE OAK MD
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| The integrated response (velocity change) of an accelerometer signal was shown to be equal to the velocity change of the input pulse if the integration is carried out over a long period of time and the accelerometer response is finite. This was shown to be true even under conditions in which the accelerometer does not record the acceleration accurately. The derivation of the velocity change from undamped accelerometer recordings was ... |
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| SOLID-STATE FERROELECTRIC ACCELEROMETER. |
26 FEB 1964 |
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| Authors:
M. L. Wright; M. M. Freundlich; AIRBORNE INSTRUMENTS LAB DEER PARK N Y
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