VideoCheck® HA

Highest Precision and Flexibility in Production Control and Laboratory

Perfectly integrated multi-sensor systems – The VideoCheck® HA is the highly accurate variant of the VideoCheck® FB and can also be equipped with several independent sensor axes (rams). The design with fixed bridge decouples the two movement axes and the scales of all three axes can be arranged centrally, which, in combination with the high rigidity of the design, leads to low measurement uncertainties. In addition, the machine is easily accessible and can be fed from four sides. The machine has a wide range of applications.

Features

Fully Automatic Capture

Multisensor coordinate measuring machines for fully automatic capture of three-dimensional geometries

Modular System Structure

Modular system structure guarantees customized solutions for individual measurement tasks.

High Accuracy Construction

Highly accurate measuring machine using air bearing technology, solid granite construction and highly accurate sensors

Telecentric Optics

Distortion free telecentric optics for image processing (selectable from 0.2x to 100x)

Contour Image Processing

Contour image processing for fully automatic measurement of regular and free-form geometries in incident and transmitted light

Additional Sensor Units

Integration of additional sensor units into a multisensor system, providing higher flexibility and measuring speed

Fast Autofocus

Fast autofocus for measurement in the Z axis

Variable Illumination

High flexibility using variable illumination devices

CNC Continuous-Path Control

Fast CNC continuous-path control

Video Measuring Machine

Production monitoring or laboratory, small or large workpieces, optical sensors, multi-sensor systems – Werth offers the right video measuring machine. Consistent quality assurance and acceptance tests according to VDI 2617 or ISO 10360 guarantee the reliability and accuracy of the machines. Task-specific measurement errors can be reduced down to the sub-micrometre range. Competent advice based on decades of experience enables customised combinations for optimal adaptation to the respective measuring task.

Typical Applications of Different Sensor

a) Conventional probes

b) Werth Fiber Probe®

c) Laser

d) Image processing

e) Autofocus

f) Werth 3D-Patch

g) 3D Werth Fiber Probe

h) X-ray Tomography Sensor

Telecentric for Constant Image Scale

Non-telecentric images change sharpness and image scale as the object distance changes. With telecentric imaging on the object side (right), in contrast, the images have nearly constant scale.

a) Sensor plane
b) Virtual image plane
c) Telecentric diaphragm

Contour Image Processing for Reliable Measurement

In contour image processing, the image is viewed as a two-dimensional whole within an evaluation window. Contours are extracted from this image using suitable mathematical algorithms (operators). Each image point of a contour corresponds to a measurement point. The measurement points are strung together like a string of pearls. This makes it possible to detect and filter out interfering contours caused by surface structures, breakouts and dirt during measurement (contour filters) without changing the mould of the contours.

Patented Werth MultiRing®

The advantage of Patented Werth MultiRing:

Angle of incidence selectable
No loss of working distance
No mechanically moving parts
Large angle range adjustable
White high power LEDs

Werth Autofocus Sensor

By combining the non-contact measuring methods of image processing and autofocus sensor, many three-dimensional measuring tasks can be solved. The features of Werth Autofocus:

Integrated in Werth Zoom
Measuring on low-contrast surfaces
Standard configuration for highest magnification
Selection via sensor button
Also usable with 3D patch

Werth FlatLight®

Minimizing out of focus condition with a special illumination device with a small numerical aperture. Even high and rounded profile sections can be measured with great precision.

WinWerth® Software

The operation of machines with a wide variety of sensors, but also the evaluation of volume data and point clouds are possible with WinWerth® in a unique combination. The Werth image processing software is based on 40 years of experience and is the foundation of probably the most powerful image processing sensors for coordinate measuring machines currently available. Optical distance sensors, conventional styluses in single-point or scanning mode, the Werth Fiber Probe®, X-ray computed tomography or machines with a combination of several sensors are all supported by the uniform concept. Measurement points, 2D images or volume data can also be conveniently evaluated in terms of geometrical characteristics or with part-to-part deviation analysis. PTB-certified evaluation algorithms ensure correct measurement results. All desired information is displayed in the graphic: CAD models with PMI data, voxel volumes, measurement point clouds, colour-coded deviation plots from 3D nominal-actual comparisons, video images, measurement and calculation elements as well as flags with nominal and actual values, tolerances and deviations. In order to meet the most diverse requirements, the software has a modular structure. Various machines can be operated, from simple measuring projectors to complex multi-axis coordinate measuring machines with multi-sensor systems or even X-ray tomography sensors.

Image Processing Measures almost by Itself

The “intelligence” of the WinWerth® measurement software then takes over, for example, the exact determination of the object area to be captured, the selection of the geometrical element to be measured (e.g. e.g. straight line, circle, corner point) as well as the linking algorithms for determining geometrical characteristics such as distances, angles and diameters.

Measurement Points Distributed Automatically

Measurement points or scan lines are automatically distributed on the geometry elements to be measured, e.g. as circles, cylinder surface lines, stars or spirals, taking into account the necessary travel paths. In this way, the complete measurement sequence, including evaluation, is first created offline using the CAD model or online with the minimum number of points for the respective geometry element.

Evaluating Images Perfectly for Optics and Computer Tomography Scan

The evaluation is mainly realised by PC hardware and software. In a first processing step, the image can be improved with image filters (optimising contrast, smoothing surface disturbances). This enables reliable measurements even with difficult edges and rigid scanning in incident light.

Testing and Changing Made Easy

The feature tree in the WinWerth® user interface also controls the test and change mode, in which programmes can be run step-by-step and changes can be added. A text editor, available in parallel, allows experienced operators to directly enter or change DMIS programme code while teaching in programmes.

CAD-Online® and CAD-Offline®

Measurement programs can be generated both online and offline using 2D or 3D CAD models. The CAD models are imported in either STEP, native CAD or IGES format. In offline mode a sensor is selected and a patch or combination of several patches is selected on the CAD model. The software computes the necessary actions for the sensor and automatically generates the corresponding segment of the program. The graphic shows the simulated measurement sequence. In online mode the procedure is similar to the offline mode, but the coordinate measuring machine immediately performs each operational step so it can be observed “live.

Volume Section Sensor

With 2D contour image processing and the associated image processing filters, measurements can also be taken in any cross section of the CT volume or point cloud. Among other things, this makes the measurement of workpieces made of several materials particularly easy.

Eccentric Sections can be Scanned Tomographically with Multi-ROI CT

With the help of section tomography or ROI tomography (ROI: Region of Interest), parts of the measuring object are measured with high resolution without having to capture the entire measuring object, e.g. , completely with high resolution using Raster Tomography, which is time-consuming and requires a lot of memory. Multi-ROI tomography offers a combination of the benefits of eccentric and sectional tomography scans. Multiple parts with high resolution can also be selected at any position in the measuring object.

Automatic Burr Detection

A special feature of Werth is the automatic detection and measurement of burrs or chips during the measurement sequence. The result is a colour-coded deviation plot of the burr and the maximum burr length. The deviation display optionally shows only those points where the burr length exceeds the tolerance limits. The burr length along the entire burr can also be displayed numerically via analysis markers. For example, every 0.5 mm a flag is set that contains the maximum local burr length.

Graphic Displays and Reports

WinWerth® displays all the measured elements along with the selected geometrical characteristics in the 2D or 3D graphics window. The report generator summarizes the various outputs in “Office style.

All desired dimensions are collected during measurement, statistically analyzed in real time and evaluated using standard SPC functions.

Test Report

Full Specifications

Model	VideoCheck® HA
General
Machine Type	Fixed bridge-type multisensor coordinate measuring machine
Probing System	Optical probing systems: image processing sensor, laser Mechanical probing systems: trigger probe, dynamic probe, fiber probe
Modes of Operation	Continuous-path control
Measuring Software	WinWerth®
Operating System	MS Windows
Measuring Range
–	X = 400 mm – 1000 mm (15.7-39.4 in.)
	Y = 400 mm – 1000 mm (15.7-39.4 in.)
	Z = 200 mm – 600 mm (8 in. – 24 in.)
Dimensions and Masses (Min. Installation area ):
Depth	1300 mm – 2700 mm (51.2 – 106.3 in.)
Width	1274 mm – 2100 mm (50.2 – 82.7 in.)
Height	2000 mm – 3200 mm (78.7 – 126 in.)
Machine Weight	1300 / 6000 kg (2867 – 13230 lbs.)
Workpiece Weight m � � �	100 kg (220.5 lbs.) (optional 250 kg (551.25 lbs.))
Connection Values
Compressed Air	6 bar (90 psi), purified air, dry and oil-free
Power Supply	** Other supply data on request or according to specific countrykit
Operating Temperature	10 – 35 °C (50 – 95 °F)

Maximum Permissible Error MPE (extract)
For advanced laboratory conditions
Tactile sensor SP80 ² ~	PF: 0.6 µm	THN = THP: 1.5 µm	E: (0.5 + L/600) µm
Sensor image processing ¹ ~ ² ~
– unidirectional	E �: (0.25 + L/900) µm
– bidirectional	E �: (0.5 + L/900) µm	E �: (0.7 + L/600) µm	E: (1.5 + L/500) µm

For standard laboratory conditions
Tactile sensor SP80 ³ ~	PF: 0.6 µm	THN = THP: 1.5 µm	E �: (0.5 + L/350) µm
Sensor image processing ¹ ~ ³ ~
– unidirectional	E �: (0.25 + L/900) µm
– bidirectional	E �: (0.5 + L/900) µm	E �: (0.7 + L/600) µm	E: (1.5 + L/500) µm
No air-conditioning required
Tactile sensor SP80 t ~	PF: 0.6 µm	THN = THP: 1.5 µm	E: (0.5 + L/75) µm
Sensor image processing ¹ ~ t ~
– unidirectional	E �: (0.25 + L/900) µm
– bidirectional	E �: (0.5 + L/900) µm	E �: (0.7 + L/600) µm	E: (1.5 + L/500) µm

1) Measured with image processing sensor with lens 10x or with optical sensor with equal or better probing error

2) ∂ = 20 °C ± 0.5 K ∇∂ = 0.25 K/h, 0.5 K/m SP80/β = 10x m ≤ m � � �

3) ∂ = 20 °C ± 2 K ∇∂ = 1 K/h, 1 K/m SP80/β = 10x m ≤ m � � �

4) ∂ = 16 °C to 30 °C ∇∂ = 2 K/h, 2 K/m SP80/β = 10x m ≤ m � � �

Contact us today to inquire about the VideoCheck® HA and enhance your multisensor coordinate measuring capabilities.

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