V1 Ultrasonic Calibration Block 001

OKOndt V1 Ultrasonic Calibration Block

Only by Request

Part # NMV1CB Categories , Tag

Application

V1 Calibration Block is designed for verification of the ultrasonic flaw detectors used in the course of welded joints quality control by the UT method. It is DSTU 4002-2000 (ISO 2400, DIN 54120, B.S. 2704) compliant.

V1 Calibration Block allows:

  • to determine the UT beam index and X-value with an error of ±0.5 mm
  • to determine the probe angle of the ultrasonic wave with an error of ±1 ang. degr.
  • to determine uncontrolled (“dead zone”) of the ultrasonic straight beam piezoelectric probes in steel
  • to determine resolution (in steel) of the ultrasonic straight beam piezoelectric probes
  • to determine the scan horizontal linearity of the ultrasonic flaw detectors
  • to adjust the scan speed and sensitivity of the straight beam, double crystal, angle beam piezoelectric transducers

Technical data

  • The Block is made from the low-carbon fine grain steel with small attenuation coefficient
  • ultrasonic longitudinal waves velocity in the Block material at a frequency of 5.0 MHz and a temperature of (20±5)ºC is (5920±30) m/s
  • ultrasonic longitudinal waves in the pad (polymethyl acrylate) of the Block material is at a frequency of 5.0 MHz and a temperature of (20±5)ºC is (2670±100) m/s
  • geometrical dimensions of the Block correspond to DSTU 4002-2000 (ISO 2400, DIN 54120, B. S. 2704)
  • the Block weight is up to 4.8 kg (approx.8.8 lbs).
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