No matter what is being measured, it is critical that the measuring instrument chosen be capable of providing an accurate and repeatable measurement of whatever needs measuring. It sounds simple – – but isn’t. In general, the larger the scale the less accurate an instrument becomes. Let’s use weight as an example. Weighing devices come …
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, …
Metrology, simply, is the science of measuring things. Metrology is used extensively in the world of industrial cleaning to both control and quantify cleaning processes. Finding the right equipment and procedures to produce accurate and meaningful results is often a challenge for those without extensive knowledge of the science. The upcoming blogs on metrology are …
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 …
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 …
Today’s highly automated industrial cleaning equipment relies heavily on valves remotely actuated either by an operator or by an automated control system. Although performing basically the same function as manually operated valves, automated valves operated by electricity, air, hydraulics or other means are considerably different than manual valves not only in their construction but their mode …
The word “passivation” is one that is thrown around quite a bit in the metal finishing and cleaning world and seems to have a world of different meanings to different people. Although the word passivation is normally associated with stainless steel, there are several other metals that can be “passivated” in one way or another. …
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 …
Today we are, again, going to bring ultrasonic sounds into the realm of human audibility by lowering the frequency to ones that most people with normal hearing can hear. Several preceding blogs have discussed the effects of varying the pulse width and pulse period of an ultrasonic generator in an ultrasonic cleaning system. If you’ve …
Pressure regulating valves were discussed in the preceding blog Valves – Pressure Reducing Valves. Pressure reducing valves, although commonly used where pressure is an issue, are not always the best alternative. The pressure reducing valve has a close cousin called a “Back Pressure Regulating Valve” which monitors and controls pressure in a similar but different …
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