“OPTHERMO” is a fiber-optic distributed temperature sensing system* whose temperature sensor itself is optical fiber. Sumitomo Electric has modified OPTHERMO, developed a wiring management and temperature monitor system suitable for data center, and commenced sales.
OPTHERMO has been used to monitor power line surface and petroleum plant temperatures. Sumitomo Electric has changed the optical fiber jacket material in OPTHERMO sensor sections, rearranged the fiber installation method, and introduced additional control software features. The result is greater accuracy in temperature sensing over intervals of several meters.
Additionally, modified OPTHERMO has the capability to share and link data with Sumitomo Electric’s fiber-optic wiring monitoring system. This improved usability enables the operator to display temperature measurement results on a PC display using icons, and to retrieve temperature changes.
The system’s overall power consumption of 15 W (excluding control PC), is lower than that of a system using distributed electrical sensors. An additional advantage of the system is that the absence of electronic sensors enhances reliability and reduces maintenance.
Data center temperature monitoring needs are expected to grow at a rapid pace. In such applications, this system monitors temperatures with improved accuracy, thereby facilitating energy saving.