Full‑Range Height‑Measurement Configuration Breakdown for Chongqing Wanwei 2.5D Video Measuring Instrument

2026-08-10

Source: Wanvei Editor

A 2.5D video measuring instrument is a precision inspection device upgraded from the standard 2D video measuring machine. Conventional 2D video measuring instruments only perform dimensional detection on the X‑Y plane of workpieces without Z‑axis height‑measuring capability, making them incapable of inspecting workpieces with height drop, thickness variation or counterbores.

Beyond the planar measurement capacity of 2D systems, Chongqing Wanwei 2.5D video measuring instrument provides multiple Z‑axis height‑measurement options: video focusing height measurement, non‑contact laser height measurement and contact probe height measurement. These options cater to workpieces of diverse materials and different accuracy requirements, solving manufacturers’ practical challenges in selecting proper height‑measurement configurations for 2.5D inspection equipment.

1. Basic Inspection Functions of the Equipment

Chongqing Wanwei 2.5D video measuring instrument completes all standard planar dimensional measurements, including length, width, aperture, arc radius, angle, hole‑to‑hole distance, positional tolerance and contour dimensions. Compared with ordinary 2D video measuring machines, its core highlight lies in the added independent Z‑axis height‑measurement capacity. It measures workpiece thickness, step height, planar height drop, counterbore depth, height difference between convex and concave surfaces and other spatial dimensions, offsetting the limitation of traditional 2D devices that cannot measure height. One single unit handles both planar and height‑related inspection tasks.

2. Non‑Contact Height‑Measurement Configurations

2.1 Automatic Video Focusing Height Measurement (Built‑in Basic Height‑Measurement Function)

Automatic video focusing height measurement is the factory‑default basic height‑measurement function of Chongqing Wanwei 2.5D video measuring instrument, requiring no extra accessories. Supported by high‑definition optical lenses and software focusing algorithms, it captures sharp imaging positions on the upper and lower surfaces of workpieces and calculates height deviation along the Z‑axis.

Suitable for basic height and step‑drop inspection of common rigid workpieces, it features simple operation and zero‑contact measurement to avoid workpiece damage. Thanks to its high versatility, it serves as the baseline height‑measurement option for numerous small‑and‑medium‑sized enterprises purchasing 2.5D video measuring instruments.

2.2 Laser Non‑Contact Height Measurement (Optional Point Laser / Line Laser)

For soft, fragile or mirror‑surface workpieces prone to scratching, the laser height‑measurement module is available as an optional accessory, including point laser and line laser variants for fully non‑contact inspection.

Point laser: Small laser spot delivers high accuracy at measuring points, ideal for local height detection of micro‑components, tiny apertures and fine steps.
Line laser: Features broader scanning coverage, suitable for inspecting workpiece planar warpage, multi‑segment continuous steps and large‑area planar height difference.

Laser height measurement avoids physical contact with workpiece surfaces. It is highly applicable to soft rubber, thin‑film parts, mirror‑surface components, coated workpieces and deformable precision parts, preventing surface scratches and compressive deformation while guaranteeing dimensional and surface quality. Laser‑equipped 2.5D video measuring instruments are widely preferred for thin‑film component inspection in the 3C electronics industry.

3. Contact Height‑Measurement Configurations (Two Probe Options)

Chongqing Wanwei 2.5D video measuring instrument supports two mainstream contact height‑measurement probes: micrometer probe and Renishaw probe set, covering Z‑axis measurement demands from cost‑effective to ultra‑high‑precision grades.

3.1 Micrometer Probe

Featuring simple structure, easy installation and commissioning as well as stable performance, the micrometer probe is a cost‑effective contact height‑measurement accessory. It collects Z‑axis data via physical contact with workpiece surfaces, enabling stable measurement of step height, thickness and height variation for regular metal parts, injection‑molded components and mold accessories.

With low procurement cost and convenient later‑stage maintenance, it fits mass routine inspection and general‑precision dimensional verification in workshops, acting as a universal contact height‑measurement solution for manufacturing plants.

3.2 Renishaw Probe Set

The Renishaw probe set represents premium high‑precision contact‑measurement hardware, delivering outstanding trigger accuracy and repeatability. It accurately measures depth and height difference for deep holes, blind holes, narrow grooves, counterbores and deep‑cavity structures, supporting high‑precision Z‑axis inspection of rigid high‑accuracy workpieces, mold steel and precision mechanical components.

For obstructed deep‑cavity zones unreachable by video focusing or laser beams, the Renishaw probe performs supplementary measurement to satisfy strict quality‑control standards for high‑end components.

4. Guide to Height‑Measurement Method Selection｜Application Reference

Video focusing height measurement: Common rigid workpieces, basic height and step inspection; no extra accessory cost; ideal for budget‑conscious manufacturers.
Point / Line laser height measurement: Soft rubber, thin‑film parts, mirror‑surface & coated components, scratch‑prone and deformable workpieces; non‑contact high‑precision measurement.
Micrometer probe: Mass‑produced rigid workpieces, general‑precision contact height measurement, cost‑efficiency priority.
Renishaw probe: High‑precision components, deep holes & grooves, complex‑cavity workpieces, high‑accuracy contact height detection.

When purchasing a 2.5D video measuring instrument, users may combine different height‑measurement modules according to workpiece material, measuring position and accuracy requirements.

5. Target Application Industries

Chongqing Wanwei 2.5D video measuring instrument is widely adopted across precision hardware, stamping parts, precision injection‑molded components, 3C electronic accessories, mold parts, medical device components, powder‑metallurgy parts and compact automotive precision components.

One unit fulfills planar‑dimensional and Z‑axis height inspection, applicable to incoming‑material inspection, finished‑product sampling test, daily workshop quality control and precision dimensional verification in diverse production scenarios.