Automation System
Pressure sensors:

All of these
None of these
use capacitive variations to sense pressure
use the piezoresistive effect in strain gauge sensors
use an aneroid chamber with a variable resistance output

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Automation System
A common data base is one requisite for converting CAD and CAM to CIM. Another is that:

there should be a common 3-D part description system.
the user must have access to both hardware and software
None of these
the system must make provision for new techniques.
technical assistance must be provided to the user.

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