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| Thermal Effects in Precision
Engineering Systems To design, build and operate systems at a high level of precision requires an acute awareness of thermal effects. It is common to underestimate the effects of temperature variation on precision equipment. Often these effects are dealt with only after equipment is built and installed when testing shows the full impact of thermal variations in and around equipment. It is also common to overestimate the effort required to manage these effects, and there is a misperception that it is difficult and expensive to deal with temperature effects. Thermal effects in a precision system represents the largest single source of systematic error and apparent non-repeatability. Minimizing and controlling thermal influences also offers the largest single source of improvement in a precision system and most often at a fraction of the cost of the overall system. This is why it is important for anyone working with precision equipment to understand thermal effects and how to deal with them. This tutorial will present the fundamental causes of thermal effects including both the static and dynamic effects. Design principles that address thermal effects will be covered. The basics of temperature measurement and control will also be covered in detail. Many examples of thermal effects will be shown and solutions for managing the problem will also be covered.
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