Todd M Hochrad

US Patent:

59888776, Nov 23, 1999

Filed:

Sep 15, 1997

Appl. No.:

8/929932

Inventors:

Todd Mark Hochrad - Ventura CA
William Edward Jennings - Wingate NC
Edward Earl King - Charlotte NC

Assignee:

C E M Corporation - Matthews NC

International Classification:

G01K 1310
H05B 664

US Classification:

374150

Abstract:

A method and apparatus are disclosed for externally and noninvasively determining the temperatures of chemical reactions inside a plurality of separate closed vessels that are made of materials that substantially transparent to microwave radiation but that are poor conductors of heat. The method comprises exposing a plurality of substantially microwave-transparent of vessels containing chemical reagents therein to microwave radiation, concurrently measuring the temperature of the reagents inside a first vessel using a first temperature sensor inside the first vessel and while measuring the temperature of the exterior of the first vessel using a second temperature sensor positioned externally to the first vessel, and immediately thereafter successively measuring the temperature of the exterior of the remainder of the vessels using the second sensor.