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Transducer Technology Selection Checklist
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This transducer technology checklist is intended to aid in the basic selection of a particular technology best suited for the total application  requirements. Use of this list should only be the beginning of a very careful and thorough process. 

It is usually very easy to get some information from a sensor or transducer, but with many technologies it is also very easy to get much poorer than expected accuracy. With some technologies, simply plugging in a transducer while not being aware of potential pitfalls of that technology and their effects on accuracy, reliability, and safety can lead to serious problems. With some technologies, to achieve the desired performance may require expertise and control of electrical and the mechanical installation design in ways, which the non-expert could easily overlook.

The use of some type of checklist is almost required to be sure some significant factor is not overlooked. 

Generally, the best technology for an application is one, which will produce the required accuracy with the highest probability and reliability at the lowest cost over the life of the application. This will generally be achieved by a technology, which has the following features:

1) The technology requires the least expertise on the part of the user.

2) The technology is the least dependent on process and part controls by the manufacturer.

3) The technology has the lowest uncompensated sensitivity to environmental influences such as temperature and time.

4) The technology has the lowest sensitivity to mechanical and electrical variations in the installation in the field.

5) The technology inherently has a high level signal.

6) The technology has an inherently high electrical noise immunity.

7) The technology inherently has the signal format needed in the application and either does not need signal conversion or the signal conversion is inherently lower error.

8) The technology does not require in field mating and calibration of a series of black boxes, nor any calibration boxes.

9) The technology allows system components to be replaced without recalibration (including connectors and cables.) 

10) The technology has no fundamental life limitations in the application.

 

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