Electrical calibrated radiometer

摘要

An electrical calibrated radiometer includes a base, a suspension unit extending from the base, and a first heat measuring unit and a second heat measuring unit formed in the base. By applying a known voltage to the first heat measuring unit, the first heat measuring unit could serve as a thermal background for the second heat measuring unit, and an absolute temperature of a heat source could be determined with high precision from output voltages of the second heat measuring unit.

主权项

1. An electrical calibrated radiometer comprising:
a base having a top surface formed with a groove; a suspension unit including a support part extending from said top surface of said base, and a plate-shaped suspended part extending from one end of said support part that is opposite to said base, said suspended part extending above said groove and being free of contact with said base; a first heat measuring unit including a first thermal layer made of thermo-sensitive material and being formed only in said suspended part, and two first signal arms extending respectively from two end portions of said first thermal layer, wherein said first signal arms are provided for signal input and signal output, respectively; and a second heat measuring unit including a second thermal layer made of thermo-sensitive material and being formed only in said suspended part and spaced apart from said first thermal layer, and two second signal arms extending respectively from two end portions of said second thermal layer, wherein said second signal arms are provided for signal input and signal output, respectively.