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Some means of reducing water hardness as we’ve described in preceding blogs is an almost universal first step in making water pure enough for most cleaning applications.  But water softening only addresses the removal of only a few of many contaminants that are commonly present in our water supplies.  The remaining contaminants range from ions … Continued

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 … Continued

At first it may sound like a “no-brainer,” but deciding what to measure can be a challenge.    The first part of that challenge is determining what measurements are required to establish that a particular criteria has been met.  The next is to determine if the tools required to perform the required measurements are available and, … Continued

Sweep in ultrasonic lingo simply means varying the ultrasonic frequency up and down.  A sound clip in an earlier post demonstrated the sound of sweeping the ultrasonic frequency. Single Frequency Sweep In an earlier post we also learned that ultrasonic transducers have a property called “resonance.”  Very simply, this means that they will make a … Continued

In today’s blog we once again bring ultrasonic sounds into the range of human audibility and listen to the sound of frequency sweep.  Previous blogs have revealed the sound of amplitude modulation and pulse modulation.  Frequency sweep is all about frequency – ideally there is no change in amplitude as frequency is varied.  In some … Continued

So, the goal is to get the air out of the system so that the pump can operate properly.  In the preceding blog I explained what factors might keep air from escaping from the inlet side of the pump.  It would, then, be a logical question to ask, “Why doesn’t the air  just go out the … Continued

So far, we have recognized pH and specific gravity as ways to determine chemical concentration in cleaning solutions.  This blog will explore additional techniques that may also be used for this purpose. Conductivity – Pure water is a poor conductor of electricity.  As chemistry is added to water, it’s ability to conduct electricity is increased.  … Continued

Previous blogs have revealed a number of ways to measure chemical concentration in a cleaning bath.  It is a logical extension that  process engineers utilize these tools to automate maintaining the proper chemical concentration in their cleaning processes.  Overall, this is a great idea.  However, there are some pitfalls and things that should be taken … Continued

We have discussed earlier the importance of drying in a cleaning process.  Despite the several hardware options available, hot air dryers remain the “go to” in industrial cleaning processes today.  Today’s blog will discuss the basic design concept of hot air dryers and how they function. The main components of hot air dryers are a … Continued

I’ve always known that cleaning inside blind holes was a difficult task.  In a previous blog, I demonstrated using video just how difficult it is to get liquids and/or air in and out of a blind hole.  My plan was to approach the problem logically (largely based on intuition), and offer readers some solutions to … Continued