Tag: Diagnostic strategies

34.8 Helpful “tricks” using a digital multimeter (DMM)
The digital multimeter (DMM) is quite possibly the most useful tool in the instrument technician’s collection4 . This one piece of test equipment, properly wielded, yields valuable insight into the status and operation of many electrical and electronic systems. Not only is a goodquality multimeter capable of precisely indicating electrical voltage, current, and resistance, but it…

34.7 Common diagnostic mistakes
Volumes could be written about poor diagnostic technique. The following mistakes are not intended to comprise a comprehensive list, but are merely warnings against errors that are all too common among students and within the profession. 34.7.1 Failing to gather data Perhaps the most common mistake made by technicians attempting to diagnose a system problem is…

34.6 Scientific System diagnosis and Scientific Reasoning
At the root of successful system diagnosis is a rigorous adherence to scientific reasoning. There exists no single algorithmic approach to solving problems, but rather a singular mindset characterized by the following traits: Curiosity Persistence Attention to detail Diligence in checking conclusions Regular checking of assumptions A willingness to abandon ideas based on contrary evidence Science is, at…

34.5 Problemsolving by simplification
A whole class of problemsolving techniques focuses on altering the given problem into a simpler form that is easier to analyze. Once a solution is found to the simplified problem, fresh ideas for attacking the original problem often become clear. This section will highlight multiple techniques for problemsimplification, as well as other useful techniques for problemsolving. The…

34.4 Mathematical problemsolving techniques
Some problemsolving techniques are unique to quantitative problems, involving mathematical calculations. In this section we will explore some useful tips to help you solve such problems. 34.4.1 Manipulating algebraic equations One of the most useful problemsolving techniques in all of algebra is the art of manipulating, or rewriting, equations to solve for a particular variable. The…

Chapter 34 Problemsolving and Diagnostic Strategies in Control System Analysis
The ability to solve complex problems is the most valuable technical skill an instrumentation professional can cultivate. A great many tasks associated with instrumentation work may be broken down into simple stepbystep instructions that any marginally qualified person may perform, but effective problemsolving is different. Problemsolving requires creativity, attention to detail, and the ability to…