1. purpose

The residual deformation extensometer for steel bar connections is mainly used to measure the residual deformation of steel bar sleeve connections, and the applicable range of steel bar diameters is12mm to40mm. It can also be used to measure the axial deformation of the specimen during tensile testing.

The electronic extensometer consists of two symmetrically arranged deformation sensors and a digital instrument.

The two symmetrical extensometers on the left and right are connected by spring plates, which are easy and fast to clamp, have good centering, and have small measurement errors.

2. Technical Parameter

a)Gauge length:70mm~260mm

b)Maximum measured deformation: 5mm

c)accuracy class：1 level

d)Maximum applicable sample diameter: 40mm

e) Operating temperature range: -10 ℃~+55 ℃

f) Power supply voltage: AC 220V, 50HZ