DIMENSIONAL INSPECTION METHOD
Height, step, datum and comparative measurements on a suitable surface-plate setup.
QUICK ANSWER
A digital height gauge provides efficient datum-based measurement of accessible heights, steps and comparative features on a stable surface plate. It is appropriate when the part can be oriented repeatably; complex three-dimensional or hidden relationships may require CMM instead.
HOW IT SUPPORTS A PROJECT
A digital height gauge provides controlled vertical and comparative measurement from a reference surface. With appropriate probes and setup, it supports efficient verification of heights, steps, center distances and other accessible features.
METHOD LIMITATIONS
The method relies on a stable reference surface, correct part orientation and accessible contact points. Very complex three-dimensional relationships or hidden features may require CMM or optical measurement instead. Send the controlled drawing, critical characteristics, sampling requirement and expected report format with your RFQ.
BUYER QUESTIONS
Direct answers for engineers and sourcing teams defining an inspection scope.
With the correct probe and setup, it can check overall heights, steps, comparative dimensions, accessible diameters and center positions relative to a stable reference surface.
CMM is generally more suitable when the drawing controls complex three-dimensional relationships, multiple datums, hidden features or geometry that cannot be oriented and contacted reliably on a surface plate.
The reference surface, part orientation, contact point, probe type and drawing datum must be clear. The part also needs sufficient stability so that the measurement is repeatable without distortion or movement.
RELATED INSPECTION METHODS
No single instrument is right for every drawing characteristic.
