penetration depth


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penetration depth

[‚pen·ə′trā·shən ‚depth]
(cryogenics)
The depth beneath the surface of superconductor in a magnetic field at which the magnetic field strength has fallen to 1/ e of its value at the surface.
(electricity)
In induction heating, the thickness of a layer, extending inward from a conductor's surface, whose resistance to direct current equals the resistance of the whole conductor to alternating current of a given frequency.
(engineering)
The greatest depth in an ultrasonic test piece at which indications can be measured.
References in periodicals archive ?
66 FOAM PENETRATION RESULTS MANUFACTURER MODEL PENETRATION DEPTH 1.
13] using penetration depth and calorimeter absorbed energy measurements, a correlation between edge surface roughness and absorption in welding structural steel in a buttjoint setup was observed.
Other studies demonstrated that particulate substances penetrate preferentially into the hair follicles and that the penetration depth depends on the particle size or on the base formulation used (Patzelt A.
Trend of contamination penetration depth relative to porosity for 1, 4 and 7 days after infiltration into soil media are shown in figures 5 to 7 respectively.
Investigations had been carried out in order to examine the effect of the heating time, the penetration depth of the steel pin into the plastic plate, the surface condition of steel (average surface roughness) and the time elapsed between joining and tearing.
Roemhefd says its rnagnetic clamping technology is based on the principle of a permanent electric magnet, meaning it is safe even in the event of a power outage and, with a penetration depth of 15 to 20mm, does not impact on production.
To avoid these effects, Smith and his team designed the PNP to measure hardness via the actual penetration depth of the indenter tip into the specimen.
Unstructured covariance matrices were assumed for both penetration depth and cross-section percent based on likelihood ratio tests and other model criteria, thus allowing for some heterogeneity and unequal correlations between repeat measurements.
In the case of several shot charges of equal weight, but of differing shot sizes, and driven at a velocity level adequate to permit the penetration of a given thickness of tissue, the shot charge containing the smallest shot size will crush the greatest volume of tissue over a given penetration depth, assuming all pellets hit the target and no pellet enters the track of another.
For the on-line measurement of the penetration depth during the loading and unloading processes dedicated depth-sensing instruments were developed.
Key statement: A method of making a golf ball comprising: forming a cover about a core comprising at least one cover layer comprising a cover inner surface and a cover outer surface and having a thickness D; treating the cover outer surface with a fatty acid and/or fatty acid salt composition and forming a treated cover region which extends inward from the cover outer surface a penetration depth [D.
New Ionomers 10 mN load/20 um Indenter TPU #8-1 AD1022 AD104 Penetration Depth (um) 18.