The EEECO TROPTOMETERS is an effective instrument for measuring torsional strain. It is simple to use and extremely precise for testing, research and instruction.The EEECO TROPTOMETERS use two kinds of measuring systems: a divided ring with vernier and or a Rotational Variable Differential Transformer (RVDT).

EEECO TROPTOMETERS are available in the following types:
TRA, TRB

Troptometer TRA
This type troptometer consists of two discs mounted to each other with a slimline preloaded bearing. These discs carry the divided rings and verniers and the spools which provide for the gage length  and specimen cross section. The standard spools have a 1" ID and are made for 5" gage length. Each spool carries one point and two spring plungers. The distance between the two hardened points establishes the gage  length of the instrument. The troptometer is mounted on the specimen prior to installing the specimen n the grips of the torsion machine. Other spools can be furnished which provide for shorter or longer gage length

TROPTOMETERS

TRA5DR Standard Series  5" gage length    1/4" to 1" max round

Troptometer TRB
This type Troptometer consists of two discs mounted to each other with a sleeve bearing. These discs carry the divided ring and venire and the VDT system for measuring the specimen rotation in torsion. The instrument is attached to the specimen through spools which are integral to the instrument. Each spool carries one point and two spring plungers. The spools have a 1" ID and  are made for 5" gage length. The distance between the two hardened points establishes the gage length of the instrument. The instrument can read continuously with the 360deg. graduated ring with vernier and the RVDT system which reads continuously to +/- 20 to 30 degrees.

TRB5DT Standard Series  5" gage length    1/4" to 1" max round

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