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Innovative sensor solutions from Heimann Sensor: Pioneers in Sensor Technology

Photo by Heimann Sensor GmbH

Commitment to Innovation

The modern world relies on sensors for a wide range of applications, from industrial automation to medical technology. With a rich history and a focus on innovation, Heimann Sensor has established itself as a reliable partner for companies and research institutions globally. Since its founding 22 years ago, with initial employees experienced in infrared sensor technology, Heimann Sensor has continuously developed groundbreaking products, setting technological records and earning the motto “We love INfraNOVATIONS.”

Technological Leadership

Heimann Sensor’s innovations are built on monolithic thermopile sensors, which now offer up to 160×120 pixel resolution and 45µm pixel size in a TO-8 package. Utilizing advanced semiconductor technologies and MEMS methods, these sensors feature improved signal-to-noise ratios (SNR) due to new designs in pixel structure, absorber materials, protective gas selection, wafer level packaging (WLP), and optical coatings. These advancements enhance thermal resolution (NETD) and reduce costs through optics optimization. Thermopile sensors have significant advantages over competing methods like microbolometers and radar sensors, such as:

  • Uncooled, shutterless operation with high refresh rates (up to 160 Hz for an 8×8 array) without signal drift interruptions.
  • Passive operation that generates electrical voltage, reducing power consumption and enabling battery-powered applications.
  • No radiation exposure concerns, ensuring easier data processing without sensor interference.

Diverse Product Applications

Heimann Sensor offers an extensive portfolio of optics and viewing angles (FOV) for different applications, from focused object detection (FOV=10°) to wide-area room surveillance (FOV=120°). Solutions for medium viewing angles (FOV=30-50°) and customized optics are available. Beyond temperature sensors, Heimann Sensor also provides module and array models for gas concentration measurements using Non-Dispersive Infrared (NDIR) detection, targeting gases like carbon dioxide (CO2), methane (CH4), hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NO).

Advanced Pressure Sensing

MEMS Pirani vacuum sensors surpass traditional Pirani sensors, offering precise measurements from atmospheric pressure (1000 mbar) down to 1E-3 mbar (HVS 04) and 10 mbar to 1E-5 mbar (HVS 03k). These sensors come in a compact, durable TO-39/TO-46 metal housing. By pairing HVS 04 and HVS 03k in a TO-8 housing, the entire pressure range can be measured.

A Glimpse into the Future

AI-powered IR sensors enable automatic people detection, making them suitable for data protection-sensitive scenarios where cameras cannot be used. Low-resolution sensor arrays, like 16×16 or 32×32, are ideal since they do not support face identification. These sensors have applications in Ambient Assisted Living (AAL) in nursing homes and public space monitoring. The 45µm pixel size enables a hybrid solution with a 60×40 array installed in WLP, offering new standards in sensitivity, size, and speed. The sensor operates at 21 Hz with 16-bit ADC resolution and consumes only 15 mW of power, significantly less than comparable bolometer models, facilitating efficient battery use. The 160×120 pixel version fits a TO-8 housing, operates at approximately 10 Hz with 16-bit ADC resolution, and is expected to enter mass production in early 2025.

For more information, please visit: https://www.heimannsensor.com/news