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[Crackmeter] Equipment

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Wire Deformeters
<p>Wire deformometers allows to monitor the changes in the distance between two anchor points.<br>Typical applications include measurements of small cracks, convergence monitoring in tunnel and structural deformations.<br>The USB wire deformometer consist ...
"Scissor-Jack" Crackmeter (VW) - Model 4420-1X-50
<p>In late 2009 the U.S. Geological Survey (USGS) and National Park Service (NPS) joined into a collaborative research project to investigate the deformation of large, vertically-oriented, granite slabs in response to thermal heating and solar radiation. The ...
Crackmeters and Jointmeters
<p>Electrical and vibrating wire crackmeters (jointmeters) are intended to monitor movement across surface cracks and joints in concrete structures or rock.<br>The instrument assembly includes sensor housing and target, both parts are equipped with screw anchors. ...
Displacement transducer for measurement of crack opening
This transducer is used for determining the Crack Mouth Opening Displacement (CMOD) conforming to EN 14651. The transducer have to be positioned over the notch sawn previously into the test beam. The specimen has to be loaded by a suitable Flexural frame as, ...
Linear Potentiometer Crackmeter
<p>The Linear Potentiometer Crackmeter is a highly accurate and robust instrument used to measure displacements across cracks and joints of a structure. The potentiometer is installed across a crack or joint of the structure to be monitored, using either groutable ...
Micro Crackmeter - Model 4422
The Model 4422 is a miniature crackmeter intended to measure displacements across surface cracks and joints. It has been specially designed for applications where access is limited and/or where monitoring instrumentation is to be as unobtrusive as possible ...
Titanium Crackmeter (VW) - Model 4420-1X-12.5
<p>A submerged concrete caisson, partially buried below seabed serving as a water intake facility, was to be instrumented to monitor potential settlements during its operation. To meet the objectives of the monitoring project, two Model 6160 MEMS Tiltmeters ...
Vibrating Wire Crackmeter
<p>The Vibrating Wire Crackmeter provides accurate measurement of crack propagation for structural or geotechnical monitoring. The sensor is made from high quality stainless steel, incorporates O-rings to allow for underwater use and is designed for longterm ...
VW 3D Jointmeter
<p>Jointmeters are used to monitor movement at joints and cracks. Submersible sensors for 3-D jointmeters are designed to withstand extended underwater operation. Typical applications include: Monitoring movement at submerged construction joints in concrete ...
VW Crack Meter
<p>VWCM-4000 crack meters are used to measure movement across surface cracks and joints in concrete, rock, soil and structures. They consist of a sensor outer body tube and an inner free-sliding rod which is connected at the internal end to a vibrating wire ...