Contactless Measurement of Surface Temperature

Thermopiles are used for contactless temperature measurement and are available as components and modules. Thermopiles are multiple thermocouples that use the Seebeck Effect. The measurement principle is based on the detection of infrared radiation, using micro-machined devices in silicon-based technology. The device's inherent DC coupling characteristic allows the operation without a mechanical chopper.

Benefits

• Cost-effective
  
• High precision measurement
  
• Easy integration
  
• Low vibration sensitivity
  

• Application in a wide
  temperature range
  
• Complete calibration
  
• Miniaturised elements

HL Planartechnik

Thermopiles

HL Planartechnik offers thermopile components in TO-18 and TO-5 packages. They are available either as a one-element detector or as an eight-element linear array.

The sensor input is radiation and outputs are the thermopile voltage and the connections to the ambient temperature nickel RTD or NTC. By changing the optical elements eg plain windows, silicon windows, silicon lens or mirror, the sensor can be individually adapted to your applications.

Key Features

• Different ambient and object temperature ranges
  
• Complete calibration and compensation of ambient temperature
  
• Sensor available in TO-5 and TO-18 housing

Applications

• Contactless measurement of surface temperatures or IR-Radiation
  
• Temperature measurement at moving objects
  
• Continuous temperature control in manufacturing processes
  
• Thermal alarm systems
  
• Absorbing measurement for gas analysis
  
• Climate control systems
  
• Medical instruments

HL Planartechnik

Thermopile Components