LVDTs cost-effectively monitor tunnel deflections
A
RDP Electronics product story
Edited by the Engineeringtalk editorial team
May 25, 2009
RDP Electronics has introduced a range of water-resistant LVDTs that can monitor movement and deflection in tunnels.
Tunnels can be subject to movement and deflections due to the overlying rock strata.
In areas of geological or seismic activity there may be a greater need to monitor movements, as these may foretell damage or even collapse of the structure.
RDP LVDTs with 4 - 20mA analogue output can provide accurate responses in what is typically a wet and dirty environment.
Pinned to the tunnel walls, an installation may involve tens or even hundreds of LVDTs with cable runs of 100m or more, which is made possible using these analogue devices.
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Other RDP Electronics stories
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Miniature LVDTs allow high pressure rating
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LVDTs come with with 4-20mA output
RDP now offers 4-20mA output as an option on a wide range of transducers, either directly or in conjunction with a simple external module. -
LVDT amplifier eases system engineering problems
New from RDP Electronics, the low-profile DR7AC carrier amplifier is designed to provide excitation and signal amplification for LVDTs and other inductive transducers.
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