Thermally sensitive array device for presence detection around automatic doors

A thermally sensitive array of passive infrared sensors for detecting an object around a moveable automatic door, comprising:

• each of said passive infrared sensors is a thermopile;
• each of said thermopiles located around said moveable automatic door;
• said moveable automatic door is adapted to open and close depending on the detection of said object around said moveable automatic door;
• each of said thermopiles includes at least two thermocouple devices;
• each of said thermocouple devices includes:
• a thermocouple having first and second contacts;
• an isolation layer;
• said thermocouple engaging said isolation layer;
• a substrate;
• said isolation layer engaging said substrate;
• a first source element and a second source element;
• an absorptive cover in engagement with said first source element;
• said first source element and said second source element are thermally coupled to said respective first and second contacts of said thermocouple;
• and, voltage measuring circuitry affixed to said contacts of said thermocouple.