Vibration Testing Articles

  • HAV mis-measurement – to no standards whatsoever…

    Misunderstanding Hand Arm Vibration monitoring marketing material can put hands and safety policies at risk. Caveat emptor. We are regularly asked about new vibration measurement technology, particularly re the latest hand-held, glove or wrist mounted transducers that are presented as the latest assessment improvements. Whilst they may be useful tools, unfortunately some claims have been ...

  • The future is condition monitoring

    It’s been a big month here at Hansford Sensors. We kicked off November by celebrating our 10thanniversary, during which time we were playfully predicting what our company may look like in another decade. While our thoughts on this are strictly hypothetical at this stage, thanks to the release of a new report we now have a better idea of the state of the condition monitoring ...


    By Hansford Sensors

  • The vibration monitoring evolution

    A recent report from Markets & Markets estimated that demand for vibration monitoring systems will reach nearly $1.5 billion by 2020. That’s a staggering increase of around 50% compared with today – with a compound annual growth rate (CAGR) of more than 6.5%. Is this growth a big surprise though? As a company that has seen first hand the rapid evolution of the ...


    By Hansford Sensors

  • Opening the envelope on bearing vibration

    A sophisticated signal processing technique can help to pinpoint bearing failure at an early stage. Chris Hansford, Managing Director at Hansford Sensors, explains. Experienced operators can often tell if a machine is not working properly, on the basis that is does not ‘sound right’. The same principle can be applied – using modern electronics – to identify the exact cause ...


    By Hansford Sensors

  • What are the root causes of wear in industrial machinery?

    Over the years we’ve published a wide range of material designed to help you protect your assets and prevent machine failure, through implementing the right maintenance programme and taking appropriate action to fix issues before they manifest into larger and often more complex problems. However, ...


    By Hansford Sensors

  • What is an anechoic chamber and how quiet can it be?

    One of the things that we often talk about when we’re running our CPTC (Cirrus Product Training Courses) is how our hearing works and we often end up talking about how, if there’s no ambient sound, we can feel uncomfortable and can become disoriented very quickly. One of the best (or maybe the worst) places to experience this is in ...


    By Cirrus Research plc

  • DELUMPER Bulk Bag Unloader (BBU)

    The DELUMPER Bulk Bag Unloader (BBU) is a heavily constructed system designed for convenient unloading materials even if they contain lumps and agglomerates. This unit employs a gyrator to effectively fluidize the materials for dependable discharge from the bags.  Then,  a heavy duty built-in DELUMPER crusher conditions and freshens the product. The result is an effective pre-engineered ...


    By Franklin Miller Inc.

  • Petrochemistry: Monitoring the magnetic clutch of a boiler fan - Case Study

    Equipment, Context:   The manufacturing site is a steam cracker in Europe operating 24 hours 7 days a week. To ensure its production, the plant has three boilers supplying in vapor several steam turbines and furnaces. The monitored equipment is a fan linked to a boiler. Fan is equipped with a magnetic-clutch allowing a driving ...


    By Wi-Care

  • Vibration surveillance: Oil rig – Power generator - Case Study

    Equipment, plant overview, Context Oil rigs are located in Gulf countries, Emirates.Rigs are operating 24/7 and powered by quite big power generator 436 kW. According to operator, generator was running at higher temperature than expected. Due to the periodic displacement of the generator in the oil field, no wired monitoring system was possible. The Wi-care sensors (6) ...


    By Wi-Care

  • Food industry: Monitoring a fan imbalance - Case Study

    Equipment, Context: The Plant is located in Northern Europe, producing amino acids amongst other products. The site is operating 24/7 all year long. The fan (impeller) is supplying drying process with hot air. Fan is unique and doesn’t receive a deep prediction system or strategy. Fan bearing housing is equipped with a vibration ...


    By Wi-Care

  • What is Intrinsic safety and ATEX?

    What is intrinsic safety? Intrinsic safety (IS) is a low energy signalling technique that ensures the safe operation of electrical equipment in hazardous areas by limiting the energy – both electrical and thermal – available for ignition. ...


    By Hansford Sensors

  • Maintenance tips for cooling towers - White Paper

    Cooling towers are prone to the typical causes of rotating machine failure such as misalignment, but also face a range of specific environmental challenges, including high or gusting wind speeds, dust, sand and, in coastal locations, high concentrations of salt. In the 1990s, for example, vibration and accelerated wear caused a fan blade to shear off a cooling tower in Pennsylvania, ...


    By Hansford Sensors

  • Investing in a Safe and Healthy Workforce

    Poor physical and mental health are some of the leading contributors to inadequate employee performance. These conditions can be easily prevented or treated, but are often overlooked. This is especially true in offshore locations as employees are away from their familiar environment, friends, and family for long periods of time. ...


    By EHS Insight

  • Former Ordnance Survey – Case Study

    Project Highlights Envirochem carried out environmental perimeter monitoring during the demolition of the former Ordnance survey site in Southampton. Airborne Dust, noise and vibration levels were all monitored using state of the art equipment. Project Description ...

  • Smart Monitoring Solutions for a Hassle Free Project

    Geotechnical monitoring is very much responsible for the successful completion of any project. This monitoring is done with the help of the geotechnical systems. There are different companies that provide the customized solutions for the geotechnical monitoring. Such solutions include comprehensive programming like designing the systems, installation and delivering on the site, access of the data ...


    By Soldata Limited

  • Airbus Helicopters: Monitoring gearboxes with HUMS accelerometers case study

    Airbus Helicopters needed highly robust, flight-certified accelerometers for permanent monitoring of gearboxes to be quickly designed and delivered. Challenge For helicopters, one of the most dangerous possible scenarios – worse than engine failure – is gearbox failure. Quality vibration monitoring is needed to ensure gearbox health and predict failures, while absolute ...

  • Black Box for Electrical Machines

    Abstract This article describes a specific monitoring system for electrical machines, called black box for electrical machines (Electrical Machines Black Box, EMBB).  Detailed analysis about problems of harmful working conditions that can occur on all electrical machines has been made. Based on these data and on measurement and control ...

  • Marine Monitoring to Maximise the Performance of Marine Machinery

    Considering the cost of putting to sea, it is well worth investing in vibration monitoring equipment that can help engineers to protect and maximise the performance of marine machinery. Here, we discuss the challenges facing engineers and offers advice on how to successfully install and use vibration sensing equipment on marine vessels. As machinery has become more complex and mankind has ...


    By Hansford Sensors

  • New Xtreme® metal detector from Eriez® raises industry bar in terms of superior sensitivity, ease of use and reliability

    Eriez Europe, UK manufacturer based in Caerphilly, South Wales, introduces the new Xtreme® Metal Detector, which surpasses previous units and competitive models alike with enhanced features, improved sensitivity and intuitive operation. The ultra-sleek Xtreme Metal Detector combines simplicity and sophistication with its easy-to-navigate control with extra-large colour interface. ...


    By Eriez Magnetics Europe Ltd

  • System for detection of excitation winding shorted turns in hydro generators

    Abstract This article describes a specific instrument for detection of excitation winding shorted turns in hydro generators, developed in Koncar - Electrical Engineering Institute Inc., called Hydro generator Winding Fault Detection (HO WFD). This instrument is a part of the Institute's product line used for monitoring and diagnosis of rotating electrical ...

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