Abstract
A simple addition to the temperature control system of a plant growth-room previously described (Rorison, I964) allows accurate reproduction of naturally occurring diurnal temperature patterns. It is a cam device which is simple to construct and easy to connect into any existing resistance-bridge control circuit. Programme controllers involving shaped cams which have many applications in environmental studies, usually employ a combination of gears and linkages (Voisey, I963). In the unit to be described the cam is in direct contact with a rectilinear potentiometer.*
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
