Engineering Integrity Issue 39

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life capable of automatically monitoring bolt preload during extended periods of operation. Once fitted, the BCM will wake for brief periods, which are user-adjustable to suit each application, and transmit bolt preload to a local receiver. If the preload subsequently drops below a pre-determined level, a report will be automatically sent via email or GSM network to key stakeholders detailing the ID, location of the bolt, and its current preload. Maintenance can be optimised to concentrate only on those bolts requiring attention instead of laboriously checking every bolt, and immediate action can be taken when bolts installed in mission critical applications lose preload. Available on bolts sized M20 and higher, typical applications include power generation, pressure vessels and mining plant or other situations where vibration or thermal cycling can cause loss of preload. Further details: wsales@jrdltd.com Two new product lines to range of sensors and systems Techni Measure have introduced two new product lines to their extensive range of sensors and systems. We now supply fibre optic sensors and instrumentation from Canadian manufacturer OpSens, which utilise the principles of white light polarisation interferometry (WLPI) and semiconductor band gap (SCBG) technology. Sensors are available to accurately measure temperature, pressure, displacement, strain, force or load and this technology performs exceptionally well in harsh and high temperature environments, being immune to RF, MRI, EMI, nuclear and microwave radiation. Cable runs in excess of 3km are possible with no degradation in measurement accuracy. In addition we have introduced a range of calibration systems from German manufacturer Spektra, including vibration exciters by Spektra or APS. These systems may be used for the calibration of a wide range of vibration, shock, acoustic and electrical sensors and range from handheld vibration calibrators to complete

primary (absolute) calibration systems. Air bearing or linear bearing vibration exciters input controlled vibration or force for calibration, structural test, modal analysis and seismic applications, with a wide variety of configurations available to suit your specific requirement. To select the correct sensor or system for your requirements, please contact us for information: www.technimeasure.co.uk Water and Dust Resistant Test and Measurement Microphone PCB® has released a new 1/2” (12mm) microphone and preamplifier system, the model 130A24. This array microphone has been specifically designed for use in applications where moisture, oil splash and contamination are a concern. Typical applications include brake and tyre noise, industrial machinery and environmental noise, leak detection and general purpose acoustic testing. The phase characteristics of this microphone are tailored for noise source location applications such as holography, beamforming, acoustic cameras and sound pressure mapping. Model 130A24 has a proprietary, replaceable water and dust resistant cover which is an acoustically transparent protective cover and provides a less obtrusive alternative to windscreens and more consistent response than rubber covers. This array microphone is designed with a rugged stainless steel grid cap similar to those used on high end condenser microphones. The 130A24 has a wide dynamic range to 150 dB re 20μPa, and is a cost effective alternative to the PCB®’s 378 series. Although the 130A24 is optimised for flat response in a free-field, its small size also provides an excellent response in pressure and diffuse field applications. http://www.pcbpiezotronics.co.uk Introducing SmartScan Aero Mini July 2015 - Smart Fibres Ltd., a global provider of Fibre Bragg Grating (FBG) sensing solutions, has announced the launch of the SmartScan Aero Mini,

a robust miniature FBG interrogator optimised for avionic installations especially military, civil or unmanned aircrafts. FBG sensing, with its key advantages of EMI immunity, harsh environment tolerance, multi-parameter multiplexing and intrinsic safety, has become a game changing technology for condition monitoring and smart system control in numerous demanding applications. And, with a body volume of just 1.3 litres, and a mass of just 1.4 Kg, the SmartScan Aero Mini is one of the smallest and lightest complete FBG interrogators available today. Even so, it still provides the same extraordinary high resolution performance at multi kHz sampling rates that has made the SmartScan range the benchmark for dynamic FBG sensing, and this performance will be maintained under stringent MIL-STD 810 shock, vibration and other environmental conditions. Additional improvements available from the SmartScan Aero Mini include standalone datalogging, and advanced signal processing. As with our other interrogator models, the SmartScan Aero Mini is certified for use in ATEX hazardous zones 0, 1, or 2, with gas groups IIA, IIB, or IIC. Further information: +44 1344 484111 or sales@smartfibres.com Zwick Roell CaTsᵌ launches new Cubus V2.0 software for Control Cube servo-controller The new version 2.0 Cubus software introduces several new test programs, allowing users to run a wide variety of tests ranging from tensile testing on aerospace bolts/fasteners (ISO 7961/ NASM 1312-8) through 9-actuator seat-belt anchorage testing to various international standards on to complex multi-axis service load simulation testing on full vehicle structures and sub-systems. Control Cube is an extremely flexible and versatile servo-controller for single and multi-axis static and fatigue/durability testing. The key attraction is its extreme simplicity in configuration and redeployment,

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