Insights from industry

Advancements in Infrared Non-Contact Temperature Sensors: Innovations And Applications

insights from industryJason DetschProduct Manager - Temperature Business DevelopmentAmphenol Advanced Sensors

In this interview, Jason Detsch delves into the latest developments in infrared non-contact temperature sensors, focusing on the new digital ZTP infrared sensors.

Can you give an overview of infrared technology and its use in temperature sensing?

Infrared (IR) technology uses electromagnetic radiation that is invisible to the human eye but detectable as heat. It exists in the electromagnetic spectrum, just below visible light wavelengths and between microwaves and red light.

Infrared is important in temperature sensing because it allows for non-contact measurement, which is useful in a variety of applications. Infrared may be felt as heat on human skin and is employed in various devices, including remote controls and industrial heating applications.

What are the main differences between analog and digital infrared temperature sensors?

Analog IR sensors consist of a thermopile and a thermistor. These components require system-level calibration and analog-to-digital conversion (ADC). Digital IR sensors, such as our new ZTP series, use an ASIC for signal conditioning and a digital I²C output. This makes digital sensors completely calibrated and easier to integrate by eliminating the requirement for system-level ADC conversion.

What distinguishes the new digital ZTP infrared sensors from prior models?

Our new digital ZTP infrared sensors stand out because they are factory-calibrated to plus or minus one degree Celsius at 25 °C.

They also have ambient temperature correction with a built-in thermistor, and the output is digitalized, eliminating the need for ADC conversion. These devices are adaptable and easy to use in various applications, with features like sleep mode for energy efficiency and a high-resolution I²C interface.

Could you please describe the design and operation of the digital ZTP infrared sensors?

A thermopile and a thermistor are integrated with an ASIC to create digital ZTP infrared sensors. The thermopile is mounted on a silicon substrate to provide thermal insulation while generating thermal electric energy due to temperature gradients.

The IR light travels through an optical filter to a black body surface, where it is transformed into heat and captured by the thermopile. The ASIC handles the signal conditioning, which generates a digital output ready for use without any extra calibration.

How can these sensors achieve such high accuracy and reliability in temperature measurement?

Several significant aspects of our digital ZTP sensors contribute to their excellent accuracy and reliability. First, they are factory-calibrated to guarantee they fulfill high accuracy requirements. This calibration process assures that the sensors are precise to plus or minus one degree Celsius at 25 °C.

In addition, the sensors have a thermistor for ambient temperature correction. This compensation is critical because it accounts for fluctuations in the surrounding temperature, ensuring that readings stay accurate even under changing environmental conditions.

Our sensors are designed to be plug-and-play, simplifying setup and reducing the possibility of human error. This design allows customers to easily incorporate the sensors into their systems, guaranteeing that they offer dependable and accurate measurements immediately.

Image Credit: BB DESIGN STOCK/Shutterstock.com

What are the principal applications of infrared sensors in healthcare, automotive, and industrial settings?

In healthcare, infrared sensors are utilized in handheld thermometers to monitor forehead and ear temperatures. The automotive industry uses them for occupancy detection, HVAC systems, and monitoring high-voltage connections in EV chargers. Temperature monitoring in appliances, HVAC systems, and electronic cabinets are all examples of industrial uses.

One interesting example is using our ZTP-148 SR variant in healthcare for handheld thermometers. Another example is the ZTP-115 M, which is used in car chargers to detect heat rise in high-voltage connections, ensuring the safety and functionality of EV charging systems.

How does the evaluation kit help adopt and integrate digital ZTP infrared sensors?

The evaluation kit is intended to interface easily with Windows-based systems, offering a user-friendly setup with real-time data logging features. The kit includes all necessary components, including an I²C breakout board and software, for a quick start. The kit streamlines integrating and testing sensors in diverse applications, making it easier for developers and engineers.

What are the environmental and economic advantages of adopting sophisticated infrared sensors in a variety of applications?

Advanced infrared sensors provide major environmental benefits by increasing energy efficiency and decreasing waste. In automotive and industrial applications, they improve safety and maintenance, reducing costly downtimes and accidents. Their non-contact nature also results in less wear and tear, which leads to a longer lifespan and lower maintenance expenses.

How do you envision the future of infrared temperature sensing technology? Are you excited about any future projects involving infrared sensors?

The future of infrared temperature sensing technology looks promising thanks to advances in miniaturization, precision, and integration capabilities.

Sensors are expected to become even more energy efficient, with increased use in emerging industries such as IoT and smart home devices. Continuous innovation is expected to result in more complex and adaptable sensors to deal with a wider range of temperature measurement challenges.

We are constantly working on new projects and advancements in infrared sensor technology. One intriguing development is the extension of our digital sensor line, which includes resolution and energy efficiency improvements. We are also researching new applications in emerging areas to provide cutting-edge solutions for our clients' changing needs.

What assistance and resources does your organization provide to help clients integrate these sensors into their systems?

We offer extensive support through evaluation kits, detailed documentation, and online resources. Our team is ready to help clients with technical questions and integration guidance. We also offer training sessions and workshops to help our customers get the most out of our infrared temperature sensors.

 

This information has been sourced, reviewed and adapted from materials provided by Amphenol Advanced Sensors.

For more information on this source, please visit Amphenol Advanced Sensors.

Disclaimer: The views expressed here are those of the interviewee and do not necessarily represent the views of AZoM.com Limited (T/A) AZoNetwork, the owner and operator of this website. This disclaimer forms part of the Terms and Conditions of use of this website.

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