Ad
related to: magnetic tape durability test for concrete materials pdf file extension
Search results
Results From The WOW.Com Content Network
Magnetic tape is a medium for magnetic storage made of a thin, magnetizable coating on a long, narrow strip of plastic film. It was developed in Germany in 1928, based on the earlier magnetic wire recording from Denmark. Devices that use magnetic tape can with relative ease record and play back audio, visual, and binary computer data.
English: The "Bache method" for testing concrete durability, which simulates daily temperature variations in brine. Test 1 or 2 (each 24 h) may be used, or both performed sequentially during a 48-hour period. The chosen cycle is repeated ad nauseam in order to determine the mass-loss, as an analogue for durability.
Magnetic particle inspection (MPI) is a nondestructive testing process where a magnetic field is used for detecting surface, and shallow subsurface, discontinuities in ferromagnetic materials. Examples of ferromagnetic materials include iron , nickel , cobalt , and some of their alloys .
This method is unaffected by all non conductive materials such as concrete, wood, plastics, bricks, etc. However any kind of conductive materials within the magnetic field will have an influence on the measurement. Advantages of the pulse induction method: high accuracy; not influenced by moisture and heterogeneities of the concrete [2]
ISO 18927:2013 Imaging materials - Recordable compact disc systems - Method for estimating the life expectancy based on the effects of temperature and relative humidity; ISO 18933:2012 Imaging materials – Magnetic tape – Care and handling practices for extended usage
ISO 16063-31:2009 Part 31: Testing of transverse vibration sensitivity; ISO 16063-32:2016 Part 32: Resonance testing – Testing the frequency and the phase response of accelerometers by means of shock excitation; ISO 16063-33:2017 Part 33: Testing of magnetic field sensitivity; ISO 16063-41:2011 Part 41: Calibration of laser vibrometers
SEG-Y Files are stored in a hierarchical byte-stream format that combines both textual and binary data segments. The following chart shows the byte stream structure of revision 1 (2002), [5] with revision 2 (2017) only adding an optional data trailer for 1 or more 3200-byte records at the end: [6] [7]
Magnetic media also deteriorates naturally with typical shelf lives between 10 and 20 years. [7] Magnetic tape can degrade from binder hydrolysis or magnetic remanence decay. Binder hydrolysis, also known as sticky-shed syndrome, refers to the breakdown of binder, or glue, that holds the magnetic particles to the polyester base of the tape ...