Market Leader
in Infrared Thermopile Arrays
Thermopile Products
Heimann Sensor offers a very large infrared thermopile sensor product range starting from the world's smallest single element thermopile sensor to integrated modules with calibrated digital output up to the world's smallest, largest and fastest thermopile arrays.
Application Solutions
Our thermopile sensors are used in a variety of applications ranging from non-contact temperature measurements over thermal imaging and NDIR gas detection to vacuum sensing applications.
We are proud to be part of the PROACTIF project funded by the European Union’s Chips Joint Undertaking, in which we develop a special IR sensor for drones and other unmanned vehicle technologies (UxV). The consortium brings together 42 leading European technology companies from 13 countries to redefine how emergency situations and critical infrastructure are managed. It anticipates generating around €90 million in revenue, 50 products, and more than 15 new industry patents by 2035, enabling increased market share and leadership. The project's additional impact includes dozens of new collaborations, hundreds of new jobs, and over €40 million of additional investments. Have a look at the following article by Nokia to learn more about the project's goals: https://www.nokia.com/newsroom/nokia-to-lead-proactif-a-multimillion-europe-robotics-and-unmanned-technology-project/
In Mid-May, a Heimann Sensor development and product manager is accompanying the successful second Agrarsense field test in Vindeln, Sweden. Various sensor and measurement systems were tested, including infrared cameras with built-in IR array by Heimann Sensor. The primary goals focus on enhancing the forestry operation efficiency, ensure safety, and to minimize fuel consumption and CO2 emissions.
Introduction Non-Dispersive Infrared (NDIR) spectroscopy is a well-established method for precise gas concentration measurement, especially for greenhouse gases such as CO₂. This thermopile-based sensor system combines ruggedness, accuracy and adaptability for use in demanding environments. Designed to meet the toughest industrial conditions, it features high-temperature operation up to 180 °C, hermetically sealed packaging for long-term durability, a separate, dedicated reference channel sensor and integrated temperature reference for thermal compensation. CO₂ Detection with High Selectivity This HTS-HT sensor is available in a configuration specifically tailored for carbon dioxide (CO₂) detection, using a narrow-band IR filter centered around 4.26 µm, the absorption peak of CO₂. This ensures high selectivity and measurement sensitivity, even at low concentrations. Optional Dual-Sensor Design with Dedicated Reference Channel This dual-channel system comprises two physically separate thermopile sensors: the active sensor measures IR radiation after passing through a sample containing CO₂ and the reference sensor serves to track IR source stability and environmental influences. By continuously comparing signals from both sensors, the system achieves drift-compensated, stable readings, even over long operating periods and in fluctuating environments. Integrated Temperature Reference Each sensor includes a built-in temperature reference, allowing for thermal compensation of the thermopile signal. This ensures that changes in ambient or device temperature do not affect the accuracy of the gas concentration reading—a critical feature in applications with wide or rapidly changing thermal profiles. Durability for Harsh Conditions Each sensor includes a built-in temperature reference, allowing for thermal compensation of the thermopile signal. This ensures that changes in ambient or device temperature do not affect the accuracy of the gas concentration reading—a critical feature in applications with wide or rapidly changing thermal profiles. Applications T his dual-sensor system is ideal for emission monitoring in combustion engines or industrial furnaces, exhaust gas analysis where direct sensor exposure to hot gases is required. Further application fields include process control in harsh chemical environments with temperature and humidity extremes as well as high-reliability safety applications, such as gas leak detection in hazardous areas. Benefits at a Glance • Thermopile sensors rated up to 180 °C for direct integration into high-temperature zones • Hermetically sealed design ensures maximum durability and resistance to environmental effects • Long-term signal stability and reduced need for recalibration • Integrated temperature reference for thermal compensation • Independent reference measurement enables real-time correction for source fluctuations and contamination Conclusion This advanced NDIR sensor system is engineered for high-precision CO₂ monitoring in challenging conditions. With two physically separate thermopile sensors, a built-in temperature reference and hermetic protection, it provides reliability and measurement stability - even at extreme temperatures.
