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.

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.