- Civil Lab Mechanical Lab Engineering Lab Equipments
- sales@didacticlabequipments.com
CAT NO: DIDACTICHydraulic0013
Wave Probe System
A simple and robust system for the measurement and recording of water wave profiles, which uses the principle of measuring the electrical conductivity between two parallel wires..
The system is available in 1, 2 or 3 channel form and can display data
by high speed recorder or input to a data logger. Alternative lengths of
probe are 300mm or 500mm
Easily set up and calibrated
High dynamic accuracy
Linear calibration over a large range
Outputs for high speed recorders and data loggers
Can be operated at different energisation frequencies to avoid mutual
interaction between two or more closely spaced probes
Supplied as a complete working system, with the option of 1, 2, or 3
channels of measurement
Each probe consists of a pair of stainless steel wires which dip into
the water waves. The electrical conductivity between them is measured,
and is linearly related to their depth of immersion hence to wave
height. The method is free of meniscus and `wetting´ effects.
The result is a system giving high dynamic accuracy over a wide range of
wave heights and frequencies.
Energisation is conducted by means of an audio frequency drive signal
which avoids all polarisation effects at the wire interface. The signal
is balanced relative to earth, to render the system immune to common
mode voltages between the water and instrument earth. The frequency can
be altered to permit two or more sensors to operate in close proximity
without mutual interference.
The probe consists of two 1.5mm diameter stainless steel wires spaced
12.5mm apart and 300mm long or 500mm long as required. Each probe is
connected to its own wave monitor module in the electronic console by a
twin core flexible cable 10m long. The distance between the console and
probe may be increased up to 100m using commonly available low current
cables.
The power supply module and appropriate number of wave monitor modules
are mounted in a console, finished in matt textured blue paint and
fitted with four rubber feet and carrying handle
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