Measuring surface temperatures of ablating materials with thermocouple and photocell

Claim 1

MECHANISM FOR MEASURING THE SURFACE TEMPERATURE OF ABLATING MATERIAL SUBJECTED TO HEATING FROM THE FLOW OF HOT GAS OR THE LIKE COMPRISING A FIRST LAYER OF ABLATING MATERIAL OPERATIVELY ATTACHED TO A METAL SUBSTRATE, SAID FIRST LAYER OF MATERIAL BEING PROVIDED WITH A HOLE THERETHROUGH, TEMPERATURE SENSITIVE MEANS POSITIONED ON THE SURFACE OF SAID FIRST LAYER AND ADJACENT SAID HOLE, A SECOND LAYER OF ABLATING MATERIAL POSITIONED OVER SAID LAYER AND COVERING SAID HOLE AND SAID TEMPERATURE SENSITIVE MEANS, SUPPORT MEANS FOR SAID MATERIALS, RADIANT ENERGY SENSITIVE MEANS POSITIONED IN SAID SUPPORT MEANS AND IN ALIGNMENT WITH SAID HOLE, AND MEANS ADAPTED TO INTERCONNECT SAID TEMPERATURE AND RADIANT ENERGY SENSITIVE MEANS WITH RECORDING MEANS, WHEREBY SAID SECOND LAYER OF ABLATING MATERIAL IS ERODED AWAY BY HEATING THUS ALLOWING RADIANT ENERGY TO PASS THROUGH SAID HOLE ONTO SAID RADIANT ENERGY SENSITIVE MEANS WHILE SAID TEMPERATURE SENSITIVE MEANS INDICATES THE TEMPERATURES OF SAID MATERIAL AT SAID HOLE.