Heidenhain: Evaluation Electronics (ND 1200 QUADRA-CHEK)

Evaluation Electronics for metrological applications

Evaluation Electronics for metrological applications offer numerous functions for measured data acquisition and statistical evaluation of measured values.

QUADRA-CHEK evaluation electronics for profile projectors, measuring microscopes, 2-D and video measuring machines as well as CMMs measure points on 2-D contours, depending on the version either automatically or manually by crosshairs, by optical edge detection or by video camera with real-time display of the live image and integrated image processing. For 3-D contours, such as planes, cylinders, cones and spheres, the measurement points are saved by probing with a touch probe.

In the optional CNC version, they also operate as full-fledged controls for axis positioning and can automatically execute measuring programs.

ND 1200 QUADRA-CHEK | The evaluation electronics for 2-D geometries

The ND 1200 evaluation electronics can support up to four axes, and function as measuring computers for 2-D geometries. They are mainly suited to optical comparators, measuring microscopes and 2-D measuring machines.

Execution

The QUADRA-CHEK ND 1200 evaluation electronics have a monochrome fl at-panel screen for displayed values, dialogs and inputs, graphics functions and soft keys. The robust, die-cast aluminum enclosure meets the demands of metrology and production control.

Functions

The appropriate combination of defined function keys and context-dependent soft keys always provides you with a clear overview. The innovative operator guidance provides self-explanatory information about the various functions. It already supports you while setting up the coordinate system (aligning the part and specifying the datum).

Predefined features (point, line, circle) are available for measurement. The “Measure Magic” function makes measurement especially easy: it selects that feature which best matches the shape implied by the points probed. In addition, you can establish relationships (distances, angles) between features.

You can apply tolerance values to features and relationships. Only those tolerances actually possible are offered for the selected feature. You can create or automatically record measuring programs for repeated parts. The evaluation electronics graphically take you to the next measuring position during program run.

The ND 1200 readouts measure points on plane (2-D) contours manually via crosshairs or, as an option, automatically via the optical edge finder.

Data interfaces You use the data interfaces to output measuring points as well as to read and transmit settings, compensation values and programs. The RS-232-C/V.24 serial interface enables communication with a PC. You can connect printers or memory media to the USB port. A list of possible printers is available online.

Graphic Display

In addition to the position values, the ND 1200 also displays the features graphically. Along with the individual measuring points, the geometrical and arithmetical deviations are also shown, and circles are shown for the minimum and maximum circumscriptions.

Tolerances

You can apply tolerance values to any feature. Only those tolerances actually possible are offered for the selected feature. This means that a point can only be assigned a tolerance check for its position, whereas a circle can be assigned position and shape tolerances.

Defining Features

You can use the QUADRA-CHEK evaluation electronics to define features yourself. For example, this could be a circle whose position and dimensions are exactly defined, or an alignment line that is at a specified angle to a measurable line.

Measure Magic

The Measure Magic function recognizes the geometric pattern based on the distribution of the measuring points, and automatically calculates which feature it is, such as a point, line or circle. If the measuring points are poorly chosen, then it may not be possible to determine the feature unambiguously. Measure Magic then chooses the more common version. You can have the feature be displayed graphically, and then select from the possibilities.

Model No.: ND 1202, ND 1203, ND 1204