TPA81 Thermopile array sensor




This innovative sensor can detect infrared radiation in the 2µm to 22µm range (the range of radiant heat). The device consists of a PCB on which is an array of eight thermopiles (thermocouples connected in series), together with a silicon lens and associated electronics. The sensor can simultaneously measure the temperature of eight adjacent points, as well as controlling a servo. When used in a relevant robotic application, servo control will enable a thermal image to be built up over a wide field of view.

  • Suitable for many applications include robotics and security
  • Detects body heat
  • Will detect a candle flame at 2m
  • Unaffected by ambient light
  • Only requires 5V supply
  • All communications by I2C bus via standard I2C 5-pin connector


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Description

Code

RoHS

Datasheets

1+

Manufacturer Part #: TPA81

Tpa81 Thermal Sensor

78-0792ROHS CompliantTechnical Datasheet£53.25

normally despatched 1-2 weeks

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Technical Specification

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Input voltage5V
Current typ.5mA (excluding servo)
Temperature range+4°C to +100°C
Accuracy (full FOV)±3°C (+4°C to +10°C)
±2°C ±2% (+10°C to +100°C)
Field of view41° x 6° (8 pixels of approx. 5° x 6°)
Outputs1 ambient + 8x pixel temperatures
ServoControls servo in 32 steps to 180° rotation
Dimensions31 x 18mm


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