Page 205 - TesaKatalogen

G a u ge B l oc k C o m pa r ato r s EN ISO 3650
(ASME B89.1.9-2002
Gauge Block Comparators on request)
For gauge blocks
In the hierarchical chain of dimensional measurements that can be traced back with nominal
to the standard metre length unit, gauge blocks hold a key position. This makes lengths from 0,5 mm
them the most important material references used in metrology. to 100 mm / 0.02 in
The application of the length unit, based on specific wavelengths of light, to to 4 in
gauge blocks is achieved in the first instance by fundamental interferential (0,5 to 500 mm on
measurement. Using gauge blocks measured by interferometry, defined lengths request)
are thus transferred to other gauge blocks in measurements further down the Measuring
hierarchical chain. configuration
Two probes with
TESA UPD– for Direct and Comparative Measurements mechanical contact
with the measuring
–– Direct measurement of gauge blocks with a variation in nominal length of up to face to be probed
25 mm or 1 in. are connected in
• Enables the number of reference gauge blocks required to be reduced by sum measurement
nearly 80 %. (function +A+B).

–– Comparative measurement of gauge blocks having a same nominal length. Measuring points
• Enables lower measurement uncertainties to be achieved due to weaker On the reference
influences of the systematic errors. gauge block: at the
centre of the meas-
–– Equipped with HEIDENHAIN high-precision incremental probes. uring face (point R).
–– Templates with a new concept for positioning the gauge blocks. On the gauge block
to be measured: at
• Single or dual template system to provide optimum ease of handling of the the centre (point 1)
gauge blocks as well as the four
corners of the
–– Integrated device for most accurate temperature acquisition. measuring face,
–– On-line transfer of both measured length and temperature values. each lying 2 mm
–– Computer-aided data processing with all the corrections necessary included. away from the ad-
jacent faces (points
Dual template system for the maintenance of your reference gauge blocks 2 to 5).
(TESA patented)
–– The simultaneous use of two templates allows you to "rest up" your gauge The central length
lc is determined
blocks until you need them. by probing both
–– The application of this new concept turns into significant savings in both time points R and 1. For
establishing lengths
and money. at any point, the
–– During measurement cycles carried out on a routine basis, the distance tra- measurements shall
be carried out at
velled over the measuring table is reduced by nearly 70 %. points R plus 1 to 5.
• This contributes to significant reductions of the risks of damaging and wea-
The variation in
ring the measurement faces. length v is obtained
–– The double protection of your reference gauge blocks leads to significant cost from measurements
taken at points 1 to 5.
savings through the reduction if the need for: Calibration
• recalibration certificate from
• restoration of the measuring faces the supplier for the
• replacement of worn or damaged gauge blocks comparator or the
• increased downtime (whilst extending the life of your reference gauge blocks) Swiss Calibration
Service for the tem-
Single Template System perature device.
–– Using this system your reference gauge blocks are moved together with those

to be calibrated during the measurement cycles.

L-4