What Is A Seismic Transducer?
The monitoring of ground vibrations is vital to ensure that the integrity of critical infrastructure is always maintained. Each year in the UK, between 200 and 300 minor earthquakes occur, nearly all of which are located deep underground and levels of which can only be accurately measured with specialist equipment.
The vibrations, however, are often strong enough to cause damage or disruption to sensitive equipment. Failure to actively monitor ground vibrations, therefore, risks potentially catastrophic damage to infrastructure. In this article, we will explain how seismic transducers can offer important protection to sensitive plants and machinery.
What Are Seismic Transducers?
Seismic transducers measure vibrations in the ground and consist of several important components: the seismic mass, the displacement transducer, and the spring mass damper element.
In a typical system setup, the seismic mass is suspended through a spring from the accelerometer housing. Between the seismic mass and the accelerometer housing, a damper is connected, and the seismic mass is connected to the displacement transducer, which converts vibrations or motion into a variable electrical current.
Seismic transducers work in two different modes: displacement and acceleration. Which mode is most suitable depends on several factors, including the mass, spring, and damper combination. In displacement mode, the large mass and soft spring are used; the small mass and stiff spring are used in acceleration mode.
Types Of Seismic Transducers
There are two types of devices for seismic transducer vibration measurement:
The Sensonics Range Of Seismometers
At Sensonics, we manufacture the following types of seismometers:
Willmore Adjustable-Period Seismometer MKIIIA
High-Sensitivity Triaxial Accelerometers
Find Out More
At Sensonics, we supply a range of seismic protection and recording equipment for the vibration monitoring of critical infrastructure, and we are the UK’s leading supplier of seismic monitoring systems to the nuclear industry.
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