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Equipment tagged with [crack measurement]

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"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 ...
Crack width gauges
Made from plastic. Used for measuring the crack widths in different positions: walls, corners, floors and difference of level.
Crack width microscope
A high quality microscope designed for measuring crack widths in concrete members, masonry walls and other structures. The apparatus operates by an adjustable lamp unit and the image is focused by turning a knob. The eyepiece scale can be turned through 360° ...
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 ...
Mechanical Triaxial Jointmeter
<p>The Mechanical Triaxial Jointmeter is designed to monitor three way displacement (X, Y and Z) across joints or cracks between adjoining concrete and rock structures. The Jointmeter comprises two elements; a zinc coated measurement arm and a Stainless Steel ...
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 ...
RTF Surface Jointmeter
<p>The RTF surface jointmeter (also crackmeter or fissurometer) is designed to monitor relative movements of adjacent surfaces across cracks or construction joints.</p><p>The RTF surface jointmeter consists of a vibrating wire transducer or a potentiometer, ...
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 ...
Vibrating Wire Embedment Jointmeter
<p>The Vibrating Wire Embedment Jointmeter is designed to monitor movement of joints in mass-concrete structures. The jointmeter comprises two parts: a socket and a main body. The socket is a detachable end that is cast into the first lift of concrete. The ...