2. Tutorial:Engineering metrology Topic: Workshop gauges Prepared by: Ing. Pavel Rožek Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002 je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.

3. Workshop gauges

4.  Final length Basic gauges, limit calibres, measuring mandrels, referential (setting) rings etc.  Linear length Steel gauges, survey areas, steel coiling meters etc.

5.  Slide callipers represent large group of simple gauges.  There belong slide callipers, slide depth gauges and slide altimeters.  They are universal, they are used to shaft and hole diameters measuring, distance, pitch and depth measuring, and also to geometrical deviation measuring.

6.  Slide calliper with vernier Vernier difference is 0,1 mm, 0,05 mm or 0,02 mm.  Slide callipers with dial deviation indicator Scale division of circular dial is 0,05 mm, 0,02 mm or 0,01 mm.  Digital slide calliper has electronic measuring system, measured value is read on display with digital reading 0,01 mm.  Digital slide depth gauge

7.  Altimeters are devices with vertical measuring axis,  Slide altimeter used for undemanding control operations and for scribing too,  Universal altimeter used at demanding checking of difficult, box parts. They enable to evaluate measuring results in 2 coordinates.

8. Gauges for measuring inside and outside sizes. Measuring element is micrometric bolt (measuring spindle).  Snap micrometer - measuring extent is 25 mm, - measuring force is from 5 N to 10 N,  Types of snap micrometer: - wire micrometers, - thread micrometers, - tooth micrometers  Micrometer with dial deviation indicator (pasameter)

9.  Self-centring dual-contact cavity gauge (for accurate measuring inside holes)  Self-centring three-contact cavity gauge  Digital cavity gauge (for accurate measuring inside holes)

10.  They are gauges - stroke of measuring rod converts by gear mechanism to deviation indicator scale.  In accordance to transmission mechanism, they divide into: - Deviation indicators with mechanical gear, - Deviation indicators with mechanical-optical gear, - Deviation indicators with pneumatic transmission, - Deviation indicators with electric transmission

11. Dial deviation indicators are used for:  Measuring of controlled deviations compared with nominal or set dimension  Measuring of shape and position deviations (peripheral and frontal offset)  Setting of components to required position at metalworking or measuring

12.  Measuring bench (table) for dial deviation indicators, toggle deviation indicators, indicators and measuring probes  Machine for peripheral throwing control for quick and easy control of peripheral offset

13. Name at least 3 slide callipers and describe their usage in practice. Question 2: What is the machine for peripheral offset control used for?

14.  NENÁHLO, Čeněk. Měření geometrických veličin. 1. Praha: ČMS, 2005. 207 s.  Mahr, MINIKATALOG – VÝROBNÍ MĚŘICÍ TECHNIKA Translation:  www.seznam.cz www.seznam.cz  www.slovnik.cz www.slovnik.cz  JANATA, Petr. Handy slovník technický anglicko-český a česko- anglický. Plzeň: Nakladatelství Fraus, 2000. ISBN 80-7238-075-3  Lingea LEXIKON 5, Technický slovník anglicko-český a česko- anglický. 2010.