Precise Set-Point Control of Temperature for Coral Bleaching Experiments

$28.00 plus tax (Refund Policy)

Buy Article:


Experimental research into the upper thermal limits of corals is underpinned by the need for precise control of water temperature in the testing environment, with evidence that temperature differences of as little as 0.1°C can be a significant factor in whether coral bleaches or not. Off-the-shelf temperature control equipment is generally unsuitable for high precision temperature experiment because the realized accuracy of temperature control is typically less than 0.5°C, even from state-of-the-art proportional, integral, derivative (PID) control technology. However, high temperature resolution and accuracy is achievable using simple control technology. This paper reviews the principles behind two temperature control technologies and describes a system capable of controlling temperature in actual experimental conditions to better than ±0.05°C over a 24-hr period and typically better than ±0.1°C over a 12-day period. This result is obtained through appropriate design of the experimental tank set-up and the use of “on-off” temperature control technology with very small hysteresis. Accuracy of set-point temperature is maintained by calibration against a reference temperature. Sensor drift, resulting from ambient temperature fluctuations, is avoided by immersing the circuitry in the temperature-controlled water.

Document Type: Research Article


Publication date: March 1, 2002

More about this publication?
  • The Marine Technology Society Journal is the flagship publication of the Marine Technology Society. It publishes the highest caliber, peer-reviewed papers on subjects of interest to the society: marine technology, ocean science, marine policy and education. The Journal is dedicated to publishing timely special issues on emerging ocean community concerns while also showcasing general interest and student-authored works.
  • Editorial Board
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Information for Advertisers
  • ingentaconnect is not responsible for the content or availability of external websites
Related content



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more