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Home > Products > Laser Micrometers > Triton™ Triple-Axis Scanning Laser Micrometers

Triton™ Triple-Axis Scanning Laser Micrometers

Triple-Axis Measurement


Dual-axis micrometers

Single-axis micrometers

Micrometer interfaces

Operating principle

Accessories including roller guides, stands, calibration kits, window guards, and air purges

Product safety standards (e.g. CE, UL)

Triple-axis (also called triple-plane) models make measurements from three viewpoints.  The three axes of measurement are coplanar and separated by 60 degrees from each other.  The product to measure is perpendicular to the measurement field.  (See the associated image.)  Typically, the micrometer is used to measure product diameter, ovality, and position.  To see illustrations and explanations of these and other common measurement types available with Triton™ triple-axis scanning laser micrometers, visit the Measurements page.

For round products, three axes of inspection offer the best average diameter and an accurate measure of ovality, also called roundness or eccentricity Ovality
Eccentricity is sometimes used as a measure of the degree to which two forms share a common center, as in an insulated wire where the core (the wire) and the outer insulation do not share the same center. However, LaserLinc uses these terms to refer to a measure of how well the measured product conforms to a circle. LaserLinc uses the term concentricity as a measure of the degree to which two forms share a common center.

If the ovality of your product must meet a defined specification, then a LaserLinc Triton-series micrometer is the product you require. LaserLinc’s Triton technology provides an accurate measure of ovality regardless of product orientation. (See accompanying graph to the right.)

If checking for defects, a Triton micrometer is especially effective at identifying small defects that do not encircle the product.

A common application for Triton micrometers is measurement of medical tubing, especially catheters.

For benchtop applications, a Triton micrometer is perfect for inspecting the product without rotating it, saving time without sacrificing accuracy.

Model Overview

The Triton312 and Triton330 micrometers offer the advantages of three-axis measurement in a very compact package with exceptional accuracy. The Triton331™ and Triton360™ models add a fast measurement rate and with the 360, up to a two inch [50.8 mm] measurement range. For in-process measurement of non-round profiles, products with varying diameter, and flaw detection applications, the latter models can be upgraded to the fastest measurement rates of any scanning laser micrometer: 4,000 Hz per axis (12,000 Hz aggregate). For discrete part measurement, a higher measurement rate facilitates faster inspection cycle times.

Triple-axis models share the following characteristics:

Four-Year Warranty!

The robust design of LaserLinc laser micrometers ensures reliable operation in harsh manufacturing environments. All are covered by an industry-leading FOUR-YEAR warranty that covers all parts and labor.  For warranty details, including LaserLinc’s “spare-in-the-air” replacement offer, visit the Warranty and Service page.

Notable applications include:

The matrix below shows triple-axis models by measurement range and measurement rate. Triton model numbers begin with 3 (the number of axes of measurement), followed by the approximate gate size (in millimeters).

Click on a model number in the Model column to access its specifications and drawings.


Metric (mm)

Measurement Rate (Hz)1


Minimum Part Size

Maximum Part Size

Minimum Part Size

Maximum Part Size








600 / 1800






300 / 900






1,600 / 4,800

4,000 / 12,000






1,600 / 4,800

4,000 / 12,000

1Measurement rate is the number of times per second each measurement field (or axis) is scanned. The number after the slash is the aggregate measurement rate for all three axes.