产品详情

Calibration Plates

3D Calibration Plate

The basis for accurate multi-dimensional strain experiments is a precise calibration of the two (or more) cameras. LaVision employs a fully empirical calibration method, which does not involve measuring physical angles or distances. It has been proven to be highly accurate and reliable.
For the calibration of stereoscopic camera systems LaVision provides 3D Calibration Plates with defined separation of the calibration planes and mark spacing.

In contrast to widely used single-sided calibration targets movement of the plate through the volume or taking several views is typically not required. In the most cases taking a single image from the 0-plane position of the specimen is sufficient to calibrate the entire volume. This option is very useful if there is not enough space available to move a calibration plate to different positions or if there is simply no access (e. g. in a closed heating chamber).

Features

high precision dot pattern
two-level double-sided pattern suitable for simultaneous calibration from opposite sides
fiducials for automatic mark search identifying front and back side automatically
screw thread on border for easy mounting

Single-sided Single Plane (SSSP) Calibration Plate

The Single-sided Single Plane (SSSP) Calibration Plate is a widely used tool for calibrating 2D and 3D DIC setups. The calibration procedure when using this type of plate utilises several views of the plate at different positions and orientations within the depth of focus of the system. Marks are automatically detected, and all detected marks provide information which is used in the bundle adjustment calibration algorithm. During this live calibration procedure, the intrinsic and extrinsic camera parameters are calculated.

An additional feature of the plates are printed speckle patterns on the rear side, allowing the user to perform rigid body shift (0% strain) tests to quantify the uncertainty within the system.

Features

suitable for calibration of 2D and 3D StrainMaster DIC systems
high precision dot pattern with three fiducials for orientation detection
lightweight and easy to handle
plates are provided with printed speckle pattern on the back side for 0 strain test according to VDI standard 2626

Micro Calibration Plates

These Micro Calibration Plates can be used for calibration purposes for μDIC StrainMaster systems with small scale fields of views (FoV).
There are various types of plates available with several targets of different dot diameters and distances.

Material:

glass substrate with protective coating
or
orange glass substrate- orange fluorescence when excited with green light

Product Information

3D Calibration Plate for StrainMaster

SSSP-Calibration Plate for StrainMaster

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型号：	Calibration Plates
产地：	德国
品牌：	LaVision GmbH
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