Basic types educationĀ
The 10-minute video, "Process controlĀ basics: level measurement," is presented by Control editor-in-chief Paul Studebaker, and is part of its Educational Video Series. It covers the difficulties of sensing levels, application issues, advantages and disadvantages of common technologies, such as mechanical, magnetostrictive, capacitance/RF admittance, ultrasonic, differential pressure, radar and guided wave radar, laser level, nuclear,Ā radar and other methods.
Control
12 Ways to measure fluids
This online article, "A dozen ways to measure fluid level," details all the essential level measurement methods, their history, how they've evolved, and more recent innovations. The three main categories include established, hydrostatic and modern technologies.
ABB
Introduction and selection
This online article, "Introduction to level measurement," covers float switches, non-contact and contact ultrasonic and capacitance technologies; offers links to applications including storage tanks, cooling towers and life sciences; and gives a list of questions users should answer to pick the right level measurement device.
Omega Engineering
Products playlist
This YouTube playlist of more than 40 short product videos on level measurement technologies begins with "Focusing radar level measurement" and includes handling foam, condensate, buildup and other conditions.
Vega Americas Inc.
Measurement, instrument selection
Two articles, "Level measurement" byĀ Donald Gillum and "The art of level instrumentĀ selection" by Hunter Vegas,Ā cover essential level measurement methods,Ā and how to decide which to specifyĀ for particular applications.
ISA
Magnetic level webinar
The 58-minute video, "Basics of MagneticĀ Level Measurement," by MikeĀ DeLacluyse of Lesman Instrtument Co.,Ā and Jim Linahan of Wika, defines magneticĀ level indicators; shows how theyĀ work and how they're used; comparesĀ single- and dual-chamber configurationĀ options; covers measurement technologyĀ options; and presents sample applications.
Lesman Instrument Co.
Ultrasonic vs. guided wave radar
The 17-minute video, "UltrasonicĀ level versus guided wave radar level,"Ā is presented by Jason Beck of Flo-Corp, who compares and contrastsĀ the pros and cons of these two well-knownĀ level measurement technologies.
Flo-Corp.
Capacitance summaries
This four-page article, "Thinking caps:Ā understanding capacitance level measurement,"Ā shows how to understandĀ and apply capacitance technologies, asĀ well as their advantages and limitations.Ā Ā A second article, "CapacitanceĀ level measurement," also covers basicĀ principles, and offers a selection guide.
Siemens
Omega Engineering
Animated collection
This playlist of 43 short, slickly animatedĀ product videos on level measurementĀ technologies begins with "VibronicĀ measuring principle animation" andĀ includes vivid representations of tankĀ gauging, gamma modular, radiometricĀ measurement, time of flight andĀ many other useful principles.
Endress+Hauser
