Flatness measurement of large rings and surfaces with the extension of the TOPOS 100 by a cross or rotary table

The TOPOS interferometers are based on a non-contact measurement principle. This is the basis for a measurement with a cross or rotary table. Thus, there is no limit to the size of the measurable piece in reference to the measuring field of the interferometer.

With the method of a cross or rotary table the measurement process is fully automated. The number of single measurements is based on the size of the test object. After the measurement of each segment, the user will receive the flatness value of the whole piece like in any other normal measurement.

Large rings with an outer diameter up to 420mm and ring width up to 80mm

In order to measure large rings, ring segments will be measured with an overlapping. Therafter, these segments will be merged calculative. Thus, the basis for this measurement is the stitching method. The rotation beneath the measuring field of the TOPOS 100 will be performed by a motor-powered precision rotary table. It is possible to measure rings with an outer diameter up to 420mm and with a ring width up to 80mm. If the ring width is larger, the parts can be measured by the use of a cross table.

Large surfaces

The test object will be moved beneath the measuring field of the TOPOS 100 by the use of a cross table, so that each segment of the part will be recorded with an overlapping. The segments will be merged together calculative (Stitching method).

Costumer specific modifications

Especially with the extension of a cross or rotary table costumer specific modifications in terms of the part carrier will be considered.

Retrofitting possible

If the spectrum of measurable parts has expanded towards larger parts, it is possible to retrofit the TOPOS 100 interferometer with a cross or rotary table and hence, adapt the instrument towards the new measurement requirements.