Product Description
Multi-Finger Calipers is used to detect casing deformation, bending, fracture, holes and inner wall corrosion by individual measuring fingers. The Non-Contacting Displacement Transducers (Patented Technology) are used to make high coverage and accurate measurement in limited tool diameter.

Operation Principles
Measuring fingers and centralizing fingers are opened and closed by a motor, and the caliper works centralized. Supported by springs, measuring fingers move along the inner casing wall, and changing with it. Displacement of each finger is reflected to its sensor directly and all the displacement signals will be processed, coded, and transferred to surface system where the image of the casing can be obtained.