The electrical machines laboratory at the Dublin Institute of Technology (DIT) has greatly increased in its effectiveness as a teaching resource since TorqSense non-contact torque sensors from Sensor Technology have been fitted to five machine sets. The new sensors replace an existing system of machine monitoring that had proved inaccurate.
Engineers torque technology to medics
Medical experts and sports scientists are becoming increasingly reliant on engineers as their disciplines become more and more technical. Mark Ingham looks at some of the projects his company, Sensor Technology, has helped behind the scenes.Like most rugby players I took my knees for granted until the day a twisting fall resulted in a torn anterior cruciate ligament. Fortunately these days it can be fixed with surgery and nine months of physiotherapy, but I took some comfort in the fact that Sensor Technology has...
Torque about improving handling accuracy
Dry bulk handling is en route to becoming a precision science with a level of control previously undreamt of, thanks to 20 years of research and development into digital non-contact torque monitoring. Dry bulk handling is following many other industrial processes that have been redeveloped from a ‘black art’ to a highly accurate and controlled procedure. A generation ago much of industry was in the hands of time-served artisans who relied on their many years experience to tweak and tease operations to ensure a...
Improved Performance of Motor Drive Systems
The paper describes the application of a non-contact, high bandwidth, low cost, SAW-based torque measuring system for improving the dynamic performance of industrial process motor-drive systems. Background to the SAW technology and its motor integration is discussed and a resonance ratio control (RRC) technique for the coordinated motion control of multi-inertia mechanical systems, based on the measurement of shaft torque via a SAW-based torque sensor is proposed. Furthermore, a new controller structure, RRC plus...
Dynamic rotary torque measurement using surface acoustic waves
The subject of torque measurement has previously been addressed extensively. Most of the existing transducers either rely on low voltage analogue systems (e.g. conventional resistive strain gauge) or complicated mechanical assemblies by physically assessing displacement, i.e. optical systems. This paper identifies a new, potentially low cost, non-contact, frequency domain strain torque sensor1 utilising SAW (Surface Acoustic Wave) Technology for surface strain measurement. The sensor has a short axial length...
Monitoring of typical pumps and aerator in a water treatment plant
The wireless vibration network of Wi-care system consists of the communication between three components; the transmitter, the range extender and the receiver. The transmitter is fixed on the machine and transmits the vibration and the temperature data at the measurement point. The second element of the Wi-care wireless network is the range extender, its function is to transmit vibration and temperature data over long distances to the receiver. The third part of the communication path is the receiver/gateway which...