Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
142 words
An electromagnetic wave energy sensor comprising a substrate of electrical insulating material, a first thermally sensitive electrical element carried on said substrate, a layer of electrically insulating thermally resistive material covering said first electrical element, a second thermally sensitive electrical element deposited on said thermally resistive material on the side thereof opposite said first electrical element, dielectric material covering said second electrical element and adapted to become heated by wave energy incident on the sensor, a layer of metallic reflective material deposited on said dielectric material for absorbing a fixed percentage of incident wave energy, the sensor being positioned with respect to incident wave energy so that said reflective material will reflect the major portion of the incident wave energy, and electrical circuit means coupled to the respective electrical elements for determining the energy per unit of area impinged on said sensor.
Claim 2
Dependent Claim
142 words
An electromagnetic wave energy sensor comprising a substrate of electrical insulating material, a first thermally sensitive electrical element carried on said substrate, a layer of electrically insulating thermally resistive material covering said first electrical element, a second thermally sensitive electrical element deposited on said thermally resistive material on the side thereof opposite said first electrical element, dielectric material covering said second electrical element and adapted to become heated by wave energy incident on the sensor, a layer of metallic reflective material deposited on said dielectric material for absorbing a fixed percentage of incident wave energy, the sensor being positioned with respect to incident wave energy so that said reflective material will reflect the major portion of the incident wave energy, and electrical circuit means coupled to the respective electrical elements for determining the energy per unit of area impinged on said sensor.
Claim 3
Dependent Claim
20 words
The wave energy sensor of claim 1 wherein said thermally sensitive electrical elements comprise resistors whose resistivity changes with temperature.
Claim 4
Dependent Claim
15 words
The wave energy sensor of claim 1 wherein said thermally sensitive electrical elements comprise thermocouples.
Claim 5
Dependent Claim
14 words
The wave energy sensor of claim 2 wherein said resistors are formed from platinum.
Claim 6
Dependent Claim
33 words
The wave energy sensor of claim 2 wherein said electrical circuit means coupled to the electrical elements determines the change in resistivity of said resistors due to heating thereof by incident wave energy.
Claim 7
Dependent Claim
37 words
The wave energy sensor of claim 4 wherein said electrical circuit means includes a bridge circuit supplied by a constant voltage source, and means for connecting the respective electrical elements into one leg of the bridge circuit.
Claim 8
Dependent Claim
13 words
The wave energy sensor of claim 1 wherein said reflective material comprises platinum.
Claim 9
Dependent Claim
24 words
The wave energy sensor of claim 1 including a layer of dielectric material covering said reflective material for enhancing and protecting the reflectivity thereof.
Claim 10
Dependent Claim
33 words
An array of sensor elements of the type defined in claim 1, and including multiplexing means for electrically interrogating both the first and second electrical elements in each sensor element in the array.