Geophone

Geophones than is called electro-mechanical transducer, to convert the vibrations of the floor to analog voltage signals.

Application

They are used in mining to search for deposits, for the detection of breaks in water pressure pipes, as well as in construction technology for ground investigation.

Construction

Geophones consist essentially of a coil and a permanent magnet, which are coupled by a spring. A base motion results in relative movement between the coil and the magnet. Proportional to the speed of this relative movement, a voltage is induced in the coil.

Geophones are similar in structure to the seismograph. They are used to record the refracted and reflected waves in seismology.

Characteristics

Geophones have sensitivities around and can be very low-noise ( -180 dB better than (speed ) at 10 Hz).

• Dimensional gauge
• Elektrotechnisches meter
• Seismic
• Density Meter