TacTic® TANKLESS TESTERS

TacTic developed a Series of testers for linearly translated, flat-sided or round material using a new “glanded” version of our famous “flow-coupler” transducer shoes. These shoes are mounted in pairs in an air-actuated, photo sensor-controlled “follower” to ensure good coupling and beam orientation despite minor changes in test material position as it passes through the test station. Tester models are available with one, two, three or more pairs of transducers, each pair in its individual follower.

Overview

Model 57L Series “Tankless” Testers for Linearly Fed Material

  • These testers are designed to handle material sizes ranging from 2 1/2 to 7 inches (63-178 mm). They include a self-contained drip-tank with a pump and filter for couplant recirculation. Separate handling equipment provides a translation of material through the tester. This equipment may be supplied by the user or designed by TacTic.
  • One of the primary uses of this tester is for normal beam (longitudinal wave) detection of internal defects in billets.

Model 57B Series “Tankless” Flow-Coupled Testers for Rotating Rounds

  • These testers use pneumatically raised transducer coupling shoes in one or more dual probe carriers that contact rotating material from underneath.
  • Doubly pivoted carriers provide “following” action to maintain good coupling and transducer alignment in spite of material centerline displacements.
  • Precise probe spacing enables “interlaced” scanning to increase inspection speed.
  • TacTic Model 900 Recirculating Ball Transfers are used for contact with the material. Contoured, non-contacting faceplates minimize loss and splashing of the recirculated coupling water. Air “blow-offs” keep couplant water off external conveyors.

ULTRASONIC TECHNOLOGY IN NDT

Overview

  • High-speed Ultrasonic (UT) Systems enable a full volumetric examination of materials and are designed to detect surface, subsurface, internal and dimensional flaws.
  • Ultrasonic inspection can be used to detect surface flaws, such as cracks, seams, and internal flaws such as voids or inclusions of foreign material. It’s also used to measure wall thickness in tubes and diameters of bars.
  • An ultrasonic wave is a mechanical vibration or pressure wave similar to audible sound, but with a much higher vibration frequency. For NDT purposes, the range is usually from 1MHz to 30MHz.

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LEASED UT-EC SYSTEM

Comparators can operate with either one coil (absolute method) or two

CUSTOM SYSTEMS SBQ

Comparators can operate with either one coil (absolute method) or two

TEST FACILITY

Comparators can operate with either one coil (absolute method) or two coils (differential method). Generally, the use of the two-coil system provides greater sensitivity.

ULTRASONICTRIPLE BENCH

Comparators can operate with either one coil (absolute method) or two

ROTOFLUX TRANSVERSE SYSTEM

Comparators can operate with either one coil (absolute method) or two

Varimac® Comparator with Test Coil and 570 Parts Gate

  • Comparators can operate with either one coil (absolute method) or two coils (differential method). Generally, the use of the two-coil system provides greater sensitivity.
  • The frequency of the excitation voltage determines what type of differences will be seen between two parts. Therefore, a comparator that operates on more than one frequency, or has a variable frequency through a given range, has more selectivity.
  • Filtering capabilities in electromagnetic comparators allow for an examination of the specific frequency which is most affected by the material being inspected, while ignoring the effects of other frequencies.