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Automation & Control

A miniature spectrometer offers ultralow stray light

The new Avabench-75-ULS optical bench for the AvaSpeck family of fiber-optic spectrometers has a dual, internal modestripper along with multiple compound-parabolic concentrators to further reduce stray-light levels to less than 0.04% The new optical-bench design also features much higher rigidity,…

Focus on: Flow Measurement & Control

This unit offers measurements for low flows in the milliliter range The SLQ-HC60 (photo) fills a gap in the existing range of products for precise measurement in the low flowrate range, below 100 mL/min. This water-resistant meter operates without moving…

PM and PDM: Crucial Gear in the CPI Toolbox

With the challenging global marketplace and these unstable financial times, the chemical process Industries (CPI) must do everything possible to economically maintain production while providing innovative and high quality products for their customers. To achieve both these goals, predictive and…

Focus: Focus On Level Measurement

Use magnetostrictive or laser transmitters for level measurements The LM80 laser transmitter (photo) can be used for noncontact level measurement and positioning in dry bulk and liquid level applications. Solid surfaces can be measured at any angle with the LM80,…

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Engineering Practice: Functions for Easier Curve Fitting

Engineers often need to fit experimental data to an empirical relationship for extrapolation or modeling without resorting to a full mathematical treatment based on physical principles or theory. The most widely used platform in science for doing this is MS…

Chementator: New glycemic-index technology

The Australian Commonwealth Scientific and Research Organization (CSIRO) Food Futures Flagship (Sydney; www.csiro.au), has developed an in vitro robotic device for accurately predicting the glycemic index (GI) and resistant starch (RS) in foods. "This instrument will be a valuable tool…

Focus On: Temperature and Pressure Measurement

Calibrate High-Quality Thermometers with this Instrument The 4180 Series Precision Infrared Calibrators (photo) includes two new models, 4180 and 4181, which according to the manufacturer are easy enough to use in the field and accurate enough to use in the…

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Cover Story: Process Modeling Moves Center-Stage

Process modeling has progressed from the "molecule accounting" of steady-state flowsheeting packages to become a central platform for capturing and deploying chemical process industries’ (CPI) intellectual property (IP). Systematic modeling has moved center stage to help companies differentiate themselves from…

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Condition-Based Maintenance Management Enhances Reliability

Management is a process of managing risk; maintenance management is a process of managing risk for operational reliability. Since it is hard to manage what cannot be measured, effective maintenance management demands good data on machine health — a comprehensive…

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Feature Report: Part 1: Using Installed Gain to Improve Valve Selection

  The perfect valve to control your process has been selected. The valve will pass your maximum flow. Everything is great, right? In some cases digging a little deeper might help. The control valve usually should not be the most…