Metrology – Concepts in Practice

Preceding blogs on metrology have introduced some basic concepts which can serve as food for thought.  Today, I would like to give you a couple of examples of the practical application of the concepts discussed so far in industrial cleaning applications. Monitoring Contaminant Removal – Everyone wants to know how long it takes for a …

Valves – Considerations for Specifying Automated Valves

The specification of automated valves requires certain considerations that are not of concern with typical manually operated valves.  The blog Valves – Automated Valves – What’s Different? provided a glimpse of automated valves with a very simple (but typical) example.  There are, of course, innumerable variations used in the design of automated valves so the …

Ultrasonics – Deburring – Fact or Fantasy?

Over the years I have had many hundred people approach me with potential applications for ultrasonic deburring.  There are many references to ultrasonic deburring in the literature going back decades in time so it’s not unlikely for the question to be asked.  In fact, ultrasonic deburring may have limited application but requires certain very special circumstances in order …

Valves – Pressure Reducing Valves

It is not an uncommon practice to use flow restricting valves in an effort to reduce and/or control pressure in even the most sophisticated industrial cleaning machines.  In the blog “Reducing Flow vs. Reducing Pressure – Which is it?” the risks of using flow restricting valves to control pressure were discussed in some detail.  Reliable pressure control …

Reducing Flow vs. Reducing Pressure – Which is it?

There is often a need in any system involving flow of a liquid to control the flow and/or pressure of that liquid.  Since the two are different and yet inter-dependant, it can be confusing when trying to determine if flow control or pressure control is the intended goal and how it will be best be accomplished.  Unfortunately, a wrong choice …

Cleaning and Rinsing – Spray Nozzles for Use in Air

Previous blogs have suggested the use of liquid sprays in air as either a primary mechanism or as an enhancement to both cleaning and rinsing operations.  Today’s blog will discuss, briefly, what is important in choosing a spray nozzle or nozzles for a particular application.  In order for spray to be effective, of course, the …

Ultrasonics – Monitoring Ultrasonic Performance

In the blog “Reader Questions – Monitoring Ultrasonic Transducers,” I suggested a couple of ways one might test individual ultrasonic transducers to assure they have not become ineffective due to de-bonding from the cleaning tank.  In an extension of the spirit of that blog, quality control measures for ultrasonic cleaning performance, I decided to check out a paper I …

Reader Questions – Monitoring Ultrasonic Transducers

Today’s blog is responding to two questions asked by readers.   Both concern monitoring of ultrasonic transducer performance. Ralph Clendenin asks – “Is there a measurement of the frequency I need to be aware of during “good” operation I can check monthly that would show reduction in cleaning due to change in frequency?” Stephen Sharkey asks – …

Is It Clean? – Particles – Liquid Particle Counting

In recent blogs we have been talking, for the most part, about particles that are relatively large – ones you can see, touch and feel.  There is a world out there, however, that worries about particles that are very tiny.  I’m talking about particles that are smaller than tens of microns in dimension.  An earlier …