Friction measuring apparatus Patent
Kinetic and static friction force measurement between magnetic tape and magnetic head surfaces
SEARCH · Engineering Papers
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Kinetic and static friction force measurement between magnetic tape and magnetic head surfaces
Digital telemetry system apparatus to reduce tape recorder wow and flutter noise during playback
Design and characteristics of thermocouples consisting of flexible tape for improved attachment to temperature source
Transient video signal tape recorder with expanded playback
Data acquisition and processing system with buffer storage and timing device for magnetic tape recording of PCM data and timing information
Time-base error analysis of magnetically recorded and played back digital data using tape flutter spectral density and amplitude probability distribution measurements and rms time plots
Computer program for reducing radar tracking data magnetic tape numbers for data storage by editing and low pass filtering
Closed loop servosystem for variable speed tape recorders on board spacecraft
Magnetic head/tape interface problems of satellite data storage tape recording systems, and minimizing stick-slip phenomena
Application of optically diagnosed noise information toward development of filtering subroutines for improvement of digital sensing data tape quality - Vol. 1
Wind profile data in Cape Kennedy area from FPS-16 radar/Jimsphere master tapes
Video tape recorder /VTR/ for onboard storage of wideband analog and high rate digital sensor outputs of ERTS
Shadow band observations during 7 March 1970 solar eclipse, determining spectral energy distribution from magnetic tape recordings of collimated photocells output
F-bounded erasing operator in abstract family of language for mapping, applying to families defined by tape-bounded Turing acceptors
Operation of automatic blood pressure data system is described. Analog blood pressure signal is analyzed by three separate circuits, systolic, diastolic, and cycle defect. Digital computer output is displayed on teletype paper tape punch and video screen. Illustration of system is included.
Computer program is developed to interpret spectral data in order to assist chemist in identifying low resolution mass spectra. Two versions of program, using approximately same amount of core are available. In both programs, core requirements are roughly proportional to maximum number of unknowns to be handled on each pass through tape.
Lithium doped p-n solar cells meet the basic requirements for space use. The efficiencies of the Lopex lithium cells which range from 10.5 to 12.8% are equal to or better than C.G. lithium cell and 10 ohms-cm n-p cell efficiencies. Reduction in the stresses introduced during boron diffusion has eliminated cell size restrictions and both 2 x 2 and 2 x 6 cm lithium doped cells have been fabricated. The Ti-Ag contacts which are tested 100% with a tape peel test, and pull tested and humidity tested on a sample basis are comparable to the Ti-Ag contacts on n-p cells.
Online data collection of the amplitudes of circularly polarized radio waves, partially reflected from the D region of the earth's ionosphere, has enabled the calculation of an electron-density profile in the height region 60-90 km. A PDP 15/30 digital computer with an analog to digital converter and magnetic tape as an intermediary storage device are used. The computer configuration, the software developed, and the preliminary results are described.