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3. Vertical Meters
Vertical measuring devices are widely used instruments. Unlike hand-held instruments, which are self-sufficient when it comes to taking measurements, vertical gauges require a reference plane to take measurements. Whatever the type, they are always used in conjunction with a marble to take measurements along a vertical axis, normal to the marble. They can be used to measure height, thickness, depth, internal or external diameter, depending on the configuration of the associated measuring probe.
3.1 Trusquins
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Principles and description
The term "trusquin" is used to designate both tracing and measuring instruments. The trusquin is a sliding instrument. It consists of a base resting on three blocks of marble, a...
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Mechanical and dimensional measurements
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Vertical Meters
Comparators
References
Standardization
Association française de normalisation AFNOR
- Spécification géométrique des produits (GPS). Comparateurs à levier mécaniques. Spécifications. Méthodes d'essais. - XP E 11-053 - Déc. 2000
- Instruments de mesurage de longueur. Comparateurs mécaniques à cadran, à tige rentrante radiale. Spécifications. Méthodes d'essais. - NF E 11-050 - Déc. 1990
- Spécification géométrique des produits (GPS). Comparateurs...
Manufacturers
Vernier calipers, sliding depth gauges :
Roch Lunéville France, Brown and Sharpe Group
TESA (Switzerland), Brown and Sharpe Group
Etalon (Switzerland), Brown and Sharpe Group
Sylvac (Switzerland): digital calipers
Mahr (Germany)
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