A VibratingWire Piezometer measures water level for excavation walls, checks slope
stability, measures pore pressure in embankments and soft ground, checks and
monitors flow and leak of underground water in dams and banks.
The instrument comes with a high tensile
steel wire that is attached to a diaphragm in contact with water pressure at
one end and a fixed anchor on the other end. The wire is plucked electrically with
resonant frequency of vibration at a proportion to tension in the wire. This frequency leads to an alternate current
in a coil that can be converted to a pressure.
The vibration of wire is detected and recorded to a readout device. The
frequency output is not disturbed by the external electrical noise and can
tolerate wet wiring that is common in all geotechnical applications.
MEMSPortable tilt meter is applied to monitor the tilt
or changes in an inclination of a structure. It monitors rotation of retaining
walls, warns of any likely structural damage, monitors landslide, bridges
piers, observes compression in earth dams and embankments. The tilt meter is fixed to the structure that
has to be monitored with an angle bracket welded to steel into concrete or
rock. Readings are obtained with a data logger or portable readout.
The Strata MonitoringInstruments manufacturer
must keep pace with the changes and innovation being experienced in the study
of instrumentation and civil engineering. The manufacture has to ensure safety,
high accuracy and proper maintenance of the instruments.
0 comments :
Post a Comment