Infrared Human Body Temperature Measurement
Designed the amplifier and filter circuit for pyroelectric detector P2288 of Hamamatsu Corporation so as to realize non-contact measurement of human body temperature.
Core Component
Schematic Diagram
1) Differential Operational Amplifier (Op Amp) Circuit
2) One-order Low Pass Filter
3) Inversely Proportional Op Amp Circuit
PCB Design
Breadboard debugging
Calibrated the whole sensor circuit with a thermo-couple thermostat (Used a mirror to temporarily block the thermal radiation in order to imitate the approach of human bodies)