RTF Surface jointmeter
Crack Meter
    Model:RTF 1D/3D
    Country of Origin:Canada
    Use:The RTF is a jointmeter used to measure displacement of cracks in structures or rock masses. The sensor is housed in a rugged waterproof enclosure which is fitted at one end with a spring-loaded rod resting against the reference surface located on the opposite side of the discontinuity. Supplied with installation template, the RTF is available in uniaxial (RTF 1D) or triaxial (RTF 3D) version.
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DESCRIPTION
The RTF surface jointmeter consists of a vibrating wire, potentiometer, LVDT or fiber optic displacement transducer
and a set of mounting brackets.
The sensor is housed in a rugged cylindrical enclosure which end is fitted with a spring-loaded
rod. The bracket
containing the transducer(s) is mounted on one side of the discontinuity and the bracket fitted with the reference surface(s) is mounted on the opposite side of the discontinuity. The spherical tip of the spring-loaded
rod rests against the reference surface.
The RTF surface jointmeter is available in either uniaxial (RTF 1D) or triaxial (RTF 3D) versions. The 3-D
version allows simultaneous measurements in three orthogonal
planes.

 

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