Temperature control network for the investigation of nerve cells

Véró, Mihály (1974) Temperature control network for the investigation of nerve cells. A Magyar Tudományos Akadémia Tihanyi Biológiai Kutatóintézetének évkönyve, 41. pp. 119-126. ISSN 0365-3005

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Abstract

The chamber for preparation intended for the investigation of nerve cell temperature is suitable for rapid adjustment of temperatures of +7, +14, +22 and +33 °C. The temperature values are adjusted by a Peltier element operating alternately in cooling and heating operating modes, and switching is accomplished by thyristors. The Peltier element is supplied by IC type voltage regulators. Thyristor switching is effected by pulse generators driven b y a comparator circuit with thermistor input. Circuit and construction details, operating speed, accuracy data and an interference investigation method are discussed in the paper. The equipment is also suitable for continuous temperature control of liquid baths containing other small biological objects.

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