D6T MEMS Thermal Sensors

Contactless Measurement OMRON MEMS
Thermal Sensors are able to detect the
slightest temperature changes

  • MEMS Thermal (IR sensor) measures the surface temperature of objects without touching them when the thermopile element absorbs the amount of radiant energy from the object.

    1

    Low noise

    World's highest-class stable temperature output*
    *According to OMRON's research as of February 2021, except for D6T-32L-01A.

    2

    Easy connection

    Direct temperature value output allows easy software design

    3

    Number of elements and temperature lineup

    Variation of the number of elements (1 to 1024) x temperature range (-40 to 200°C)

  • D6T MEMS Thermal Sensors
1

High Precision

World's highest-class stable temperature output*
*According to OMRON's research as of February 2021, except for D6T-32L-01A.

  • Output was unstable in applications requiring high precision
  • Stable temperature output
  • OMRON D6T-1A-01
    OMRON D 6T-1A-01 Stable output
    Standard Equivalent Product
    Standard Equivalent Product Output fluctuation
  • Note 1. According to OMRON's evaluation method (30-second continuous measurement with a blackbody furnace at 25°C)
  • Note 2. However, product specifications are not guaranteed.
-High Precision- Why?
Achieves the world's highest level*2of SNR*1
by combining the in-house designed and
manufactured ASIC and MEMS
  • In-house manufactured ASI
  • ×
  • In-house manufactured MEMS
OMRON designs and manufactures both ASIC and MEMS thermopiles in-house.
OMRON's unique digital filter and process optimization reduce the noise of ASIC,
achieving the world's highest-level SNR.
  • *1 SNR: Signal-to-Noise Ratio. Compares the level of a signal to the level of background noise.
  • *2 According to OMRON's research as of February 2021, except for D6T-32L-01A.
Product Structure

OMRON's unique MEMS technology allows combining thermopile elements and ASICs into one package, resulting in ultra-compact footprint and high precision.

  • Infrared ray : Silicon lens far-infrared focusing -> MEMS thermopile Electromotive force occurrence -> ASIC Low noise amplifiere -> MCU A/D conversion, calculation, I2C and I/F Detect wavelengths in the range 8-12 ­m
  • MEMS thermopile detection principle : The sensor utilizes the seebeck effect in which thermoelectric force is generated due to the temperature difference that occurs across the junction points of two different types of metal.
2

Easy connection

Direct temperature value output allows easy software design

  • OMRON D6T
    Temperature value output
    Sensor MEMS -> (Voltage) -> A/D conversion -> (Bit value) -> Temperature conversion(Temperature value) -> Customer MCU
  • CAN packaged thermal sensor from a competitor
    Bit value output
    Sensor MEMS(Voltage) -> A/D conversion(Bit value) -> Customer MCU
Provision of Development Support Tool

MEMS thermal sensors can be connected to OMRON sensor evaluation boards. The below 3 types of platform are applicable. Evaluation can be performed easily by connecting thermal sensor, evaluation board, and harness to the platform.

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Sensor Harness for Connection Evaluation Board Platform Sample Code
D6T 2JCIE-HARNESS-01 2JCIE-EV01-RP1 Raspberry Pi*1 https://github.com/omron-devhub/d6t-2jcieev01-raspberrypi
2JCIE-EV01-AR1 Arduino*2 https://github.com/omron-devhub/d6t-2jcieev01-arduino
2JCIE-EV01-FT1 ESP32 Feather*3 https://github.com/omron-devhub/d6t-2jcieev01-arduino
  • *1. Raspberry Pi is a registered trademark of the Raspberry Pi Foundation.
  • *2. Arduino is a registered trademark of Arduino LLC and Arduino SRL.
  • *3. Feather is a registered trademark of Adafruit Industries LLC.
3

Number of elements and temperature lineup

Variation of the number of elements (1 to 1024) and the temperature range (-40 to 200°C)

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Example Applications
The sensors can be used in a wide range of applications, depending on the temperature measurement range.
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  • Refrigerator Interior &
    Room Temperature Detection
    Able to detect temperature
    from a long distance
  • Human Presence
    Detection
    Able to detect stationary
    human presence
  • Screening of Humans
    with Fever
    Contributes to automated
    non-contact temperature
    detection
  • Abnormal High Temperature
    Monitoring
    Contributes to prevention
    of fires due to overheating
  • Home appliances
    (refrigerators & air conditioners)
  • Air conditioners &
    lighting systems
  • Room-Entry Management
    Equipment
  • Transformers &
    distribution boards
40℃- (Refrigerator Interior & Room Temperature Detection) Able to detect temperature from a long distance : Home appliances (refrigerators & air conditioners) Recommended Models 1×1 1×8 (Human Presence Detection)Able to detect stationary human presence : Air conditioners & lighting systems Recommended Models 1×8 4×4 32×32 (Screening of Humans with Fever)Contributes to automated non-contact temperature detection : Room-Entry Management Equipment Recommended Models 1×1 1×8 4×4 (Abnormal High Temperature Monitoring) Contributes to prevention of fires due to overheating : Transformers & distribution boards Recommended Models 1×8 4×4 32×32 200℃ 40℃- (Refrigerator Interior & Room Temperature Detection) Able to detect temperature from a long distance : Home appliances (refrigerators & air conditioners) Recommended Models 1×1 1×8 (Human Presence Detection)Able to detect stationary human presence : Air conditioners & lighting systems Recommended Models 1×8 4×4 32×32 (Screening of Humans with Fever)Contributes to automated non-contact temperature detection : Room-Entry Management Equipment Recommended Models 1×1 1×8 4×4 (Abnormal High Temperature Monitoring) Contributes to prevention of fires due to overheating : Transformers & distribution boards Recommended Models 1×8 4×4 32×32 200℃
Comparison with Pyroelectric Sensor

Both the pyroelectric sensor and non-contact MEMS thermal sensor can detect even the slightest amount of radiant energy from objects such as infrared radiation and convert them into temperature readings. However, unlike pyroelectric sensor that relies on motion detection, non-contact MEMS thermal sensor is able to detect the presence of stationary humans (or objects).

Pyroelectric sensor
Converts temperature readings only when detecting “temperature changes in the radiant energy” in its field of view.
Able to detect both stationary and motion state of humans (objects).
Able to detect both stationary and motion state of humans (objects).
MEMS thermal sensor (thermopile)
Converts temperature readings by “continuously detecting the temperature of radiant energy” in its field of view
Unable to detect stationary human (object) presence
Able to detect both stationary and motion state of humans (objects).