In this white paper, Sherborne Sensors outlines the key factors that should be considered when specifying inclinometers, accelerometers and force transducers. The company also examines how location, calibration and application influence the accuracy of inertial sensors and outlines some typical applications.
Specifying the right reference and applying it correctly is a more difficult task than one might first surmise, considering that references are only two- or three-terminal devices. Although the word ‘accuracy’ is most often spoken in reference to references, it is dangerous to use this word too freely because it can mean different things to different people. Even more perplexing is the fact that a reference classified as a dog in one application is a panacea in another. This application ...
Tramp oils, oils in a metalworking system (by other than intent), are major contributors to metalworking fluid failure. Typically, these oils come from machine way, spindle, gearbox or hydraulic lubes, cutting oils or rust preventives carried into the machine from previous operations. The adverse effects of tramp oil are proportional to the amount of tramp oil present and are also affected by the type of the tramp oil and the fluid that they are mixed with. The problems are most pronounced ...
Application guide: battery testing download
Batteries are used to ensure that critical electrical equipment is always on. There are so many places where batteries are used — it is nearly impossible to list them all. There are three main reasons to test battery systems: to insure the supported equipment is adequately backed-up; to prevent unexpected failures by tracking the battery’s health; and to forewarn/predict death.
The formulation of new cosmetic products involves many processing challenges, such as the disintegration of cells and solids or the dispersion and dissolving of powders into liquids. For such processes, as well as for the production of stable emulsions, degassing, homogenising and liposome preparation, Hielscher offers a range of ultrasonic mixing equipment for use in both laboratory research and industrial production.
In this study from Cedrat Technologies, a characterisation of hysteresis in a piezoceramic stack actuator similar to that employed in an actively controlled flap (ACF) system is performed to assess the effects of hysteresis on system performance. The effect of unmodelled actuation hysteresis may significantly reduce vibration and noise reduction capabilities. A hysteresis model based on the classical Preisach model has been developed from experimental data. The model displays good agreement ...
This application note is the fourth in a series that excerpts useful circuits from Linear Technology magazine to preserve them for posterity; this one highlights ‘power’ circuits from issue VI:1 (February 1996) through issue VIII:4 (November 1998).
This white paper from Amplicon explains in detail the PXI architecture and discusses the benefits that PXI systems present in a variety of industrial applications. PXI — which stands for PCI Extensions for Instrumentation — is a rugged modular test platform specifically designed to allow for flexible, fast multiple instrument synchronised measurements in a reduced footprint compared with the more usual ‘rack and stack’ instruments.
In winemaking, freshly harvested grapes are crushed and the resulting juice (must) is collected. The must contains fermentable sugars and natural yeasts which, either by themselves or with the help of additional yeast cultures, start the fermentation process in which mainly ethyl alcohol and carbon dioxide are formed. This application note from Shimadzu explains how and why FTIR spectroscopy is applied for quality assurance or for product characterisation — for example, the determination ...
This application note from Sherborne Sensors discusses the growing use of sensors to monitor the structural health of of civil infrastructure. Structural health monitoring (SHM) provides information on demand about any significant change or damage occurring in a structure. While SHM has been employed for many years, the sheer volume of data the sensors produce means drawing conclusions from it can be time consuming. With recent major advances in communications, data transmission and ...
In an increasing trend, telecommunications, networking, audio and instrumentation require low-noise power supplies. In particular, there is interest in low-noise, low-dropout (LDO) linear regulators. These components power noise-sensitive circuitry, circuitry that contains noise-sensitive elements or both. Additionally, to conserve power, particularly in battery-driven apparatus such as cellular telephones, the regulators must operate with low-input-to-output voltages.
Technical article: ultrasonic homogenising and blending — reducing small particles in a liquid download
Ultrasonic homogenising is a mechanical process designed to reduce small particles in a liquid so that they become uniformly small and evenly distributed. According to Hielscher, ultrasonic homogenising is said to be very efficient for the reduction of soft and hard particles. The homogenisation is based on cavitation. When liquids are exposed to intense ultrasonication, sound waves propagate through the liquid causing alternating high-pressure and low-pressure cycles.
Amines, particularly triethanolamine (TEA) and monoethanolamine (MEA) have remained basic building blocks of metalworking fluids, washing compounds, and rust inhibitors. This article from Master Chemical provides further information on the topic.
This technical bulletin from Master Chemical focuses on minimum quantity lubrication (MQL). MQL is micro lubrication near dry machining, or ‘spatter’ lubrication; it could be considered the latest method of delivering metalworking fluids to the point of cut, or just the logical continuation of the age-old technique of ‘brushing on’ a lubricant where it is needed.
Planview’s Innovation Management Maturity Model — based on the Capability Maturity Model Integration (CMMI) framework developed by Carnegie Mellon University — gives organisations a critical tool for assessing the strength of their innovation programme, which is essential to continue improving productivity, time to market and commercial success. This white paper explores the Innovation Management Maturity Model in detail.