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High-performance industrial accelerometers

11 May 2020

Industrial accelerometers are a vital component in today’s manufacturing systems.

Industrial machine sensors have been at the heart of modern manufacturing for many years now and with the rapid expansion and application of digital technologies, their complexity and sophistication continues to be developed and improved. Whilst there is a wide choice of options, not all industrial accelerometers are the same.

Sensonics has been developing these types of sensors for over 40 years and its accelerometers are particularly useful on applications where low noise is crucial.
Condition monitoring on critical machinery can involve complex algorithms, extracting fault vibration frequencies from a spectrum of signals with early detection being a key requirement. 

As a result of its experience in the design and manufacture of piezo-electric seismometers for seismic monitoring systems, Sensonics understands the performance criteria for accelerometers used at frequencies. These piezo-electric seismometers provide very high output of up to 50V/g, measuring low frequencies down to 0.1Hz with an ultra-low noise floor. 

Initially developed by Sensonics in 1983, the QZ/U piezo-electric seismometer is the forerunner of its SP4 range of seismometers for measuring ground-borne vibrations, structural vibration, earthquakes and other seismic measurements. Today, this experience in understanding and applying piezo-electric seismometer technology underpins Sensonics’ range of noise performance PZS Industrial Accelerometers which are ideal for industrial machine condition monitoring applications. 

The PZS range of low-noise accelerometers is an important part of the Sensonics range of industry-proven transducers that also includes PZV, PZDC and VEL/G velocity vibration sensors, XPR eddy current proximity probes, CS capacitive air gap sensors and a wide range of LVDT displacement transducers. This range means there is probably a solution for most vibration, position and shaft speed measurement applications. Specifically, they are ideal for monitoring pumps, fans, motors, centrifuges, gearboxes, compressors and process equipment.

Many of the transducers have variants which are suitable for harsh or challenging applications including low frequency, high temperature, submersible, high pressure, radiation and intrinsically safe certifications. These include ATEX / iecex / PESO for hazardous areas where potentially explosive dust or gases prevail.

With a wide range of industry-standard mechanical formats, output signals and power supply requirements, as well as simplified 4-20ma process output solutions, Sensonics is likely to have the right solution either for a new application or for the replacement of unreliable or obsolete equipment. Furthermore, if it doesn’t have an existing solution, it can offer a bespoke design service. 

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