PMID: 6536830Dec 1, 1984Paper

A precision isotonic measuring system for isolated tissues

Journal of Pharmacological Methods
P M Mellor

Abstract

An isotonic measuring system is described which utilizes an angular position transducer of the linear differential voltage transformer type. Resistance to corrosion, protection against the ingress of solutions, and ease of mounting and setting up were the mechanical objectives. Accuracy, linearity, and freedom from drift were essential requirements of the electrical specification. A special housing was designed to accommodate the transducer to overcome these problems. A control unit incorporating a power supply and electronic filtering components was made to serve up to four such transducers. The transducer output voltage is sufficiently high to drive directly even low sensitivity chart recorders. Constructional details and a circuit diagram are included. Fifty such transducers have been in use for up to four years in these laboratories. Examples of some of the published work done using this transducer system are referenced.

References

Mar 1, 1981·The Journal of Pharmacy and Pharmacology·L Miller, J S Shaw
Sep 20, 1982·Life Sciences·J S ShawJ S Morley
Oct 15, 1982·European Journal of Pharmacology·J W Growcott, A V Tarpey
Dec 17, 1982·European Journal of Pharmacology·J W GrowcottL D Topham
Jun 3, 1983·European Journal of Pharmacology·L Miller, J S Shaw
Aug 1, 1982·Journal of Pharmacological Methods·D R Illingworth, I L Naylor

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