Acoustic Monitoring of High Performance Heat Exchangers
Original Publication Date: 1985-Mar-01
Included in the Prior Art Database: 2005-Feb-18
Acoustic monitoring may be used to test or monitor the flow of cooling fluid in high performance computer systems. It may be used, also, to test or monitor high performance cooling systems which use boiling of a dielectric fluid (such as FREON*, FLUORINERTS**, etc.) Acoustic monitoring is a powerful method of detecting and responding to even the slightest irregularities in chip-carrier cooling systems. It provides a non-invasive, but extremely sensitive, acoustic "fingerprint" of the cooling flow or boiling process and may be used both (1) to test the initial operation of a new cooling assembly, and (2) to monitor a cooling assembly in operation. The advantage of this method over simple flow, pressure, or temperature monitoring is that it provides the subtle information relating to the cause of any cooling abnormality.