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Measuring Blisks

Measuring bladed disks and their elements is easy when your gauge is handheld and optical and produces 3D analysis.

Measure fan blade edges

4D InSpec is so easy to use on measuring dents on fan blades, just hold the dent in the focal zone and click the measurement button. 

We created grooved focus-aid accessories to help you steady your hand and get into focus quickly. 

You can easily measure a blade edge.

Measure deformation

In the screenshot below, you see the edge of the blade in focus on the left (green video) and on the upper right is the 3D height map. Below the height map is a linear profile, tracing the vertical profile guideline in the 3D plot. In the linear profile you can measure height changes between points.

Channel measurements

With 4D InSpec’s stand-off from the surface, it’s easy to measure into a channel on a blisk, looking at wear or corrosion. You can see this application in the photo below. With a fold mirror, you can also look a the sidewalls of the channel.

In between blades

With 4D InSpec’s fold mirror accessories, you can measure features on the sides of blades.

Added Resources


Measuring Surface Features with High Resolution in Factory Environments

Because of the lack of rapid, accurate, shop floor measurement, inspectors often lack confidence in their assessments. The overly cautious estimations that result mean that rejection rates are typically much higher than necessary. 

Learn more about the products

4D InSpec

4D InSpec provides non-contact measurement of surface features and defects, on the factory floor, in machine shops and in field service applications.

4D InSpec XL

A handheld defect inspection gauge that works like 4D InSpec standard, but with a larger field of view, to measure wider and deeper features. 

InSpec Accessories

Accessories for improving portability, ease of use, or for accessing hard to reach measurements like sidewalls and through-holes.

Get In Touch

(520) 294-5600


3280 E Hemisphere Loop, Ste 146
Tucson, AZ 85706


Office Hours (Arizona Time)

Mon: 8am - 5pm
Tue: 8am - 5pm
Wed: 8am - 5pm
Thur: 8am - 5pm
Fri: 8am - 5pm
Sat: Closed
Sun: Closed

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