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Examples
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Permanent (iv) Reference record possible standard required (v) No couplant (v) Permeability required variation causes difficulties.
Recently Uploaded Slideshows guest754c67 2009
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Carried out the functional check of the TAP test set ensuring the TAP test block value shown on the tester display is in the range of values engraved on the side of the tap test block. (ii) Applied small quantity of COMAT 06-148 ultrasonic couplant to the lower convex aerofoil adjacent to the annulus filler line & attached the probe to the fan blade.
Recently Uploaded Slideshows guest754c67 2009
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As in the case of direct contact as well as immersion testing a liquid couplant with low acoustic impedance z is required the crystal material should have an acoustic impedance of the same order in order to be able to transmit as much sound energy as possible.
Recently Uploaded Slideshows guest754c67 2009
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