This solid-state potentiometer simulates a mechanical potentiometer and fits in the same space
http://www.edn.com/index.asp?layout=roadblock&sid=568591912&target=index%2Easp%3Flayout%3Darticle%26articleid%3DCA158988
Explanation of automatic control fundamentals and their applications in production processes.
http://www.sapiensman.com/automatic_control/
http://www.mrs.bt.co.uk/dubus/8602-2.pdf
Shows the classic implementation of an integrator. The circuit has two properties that may be undesirable in same applications: It necessarily inverts, and it requires a split-supply or midsupply reference.
http://a330.g.akamai.net/7/330/2540/20020911135951/www.edn.com/contents/images/91902di.pdf
You can combine an instrumentation amplifier and an inexpensive CMOS op amp to get the better of two worlds: the precision of a bipolar instrumentation amp and the5V single-supply operation of the CMOS op amp. The characteristics of such a circuit depend
http://www.edn.com/archives/1994/030394/05di2.htm
Very high frequency instrumentation amplifier based on video-difference amplifier.
http://www.edn.com/archives/1994/051294/10di7.htm
The work of the ISP research group is directed towards the development and use of new instrumentation and techniques for the acquisition and processing of information from both natural and man-made signal sources.
http://www.cyber.rdg.ac.uk/ISP/
http://www.informationstore.net/fluke/efulfillment.asp?publication=10307-eng
Algorithms coded in Maple for computing with algebraic curves. The main algorithm computes an integral basis of an algebraic function field using Puiseux expansions.
http://www.math.fsu.edu/~hoeij/compalg/IntBasis/
41/2-digit picoammeter uses an integrating transimpedance amplifier to achieve a resolution of 0.1 pA
http://www.edn.com/archives/1997/071797/15di_04.htm