Temperature Measurement IR Sensors & Detectors

Want the most reliable, durable and accurate non-contact temperature sensor on the planet?

For more than thirty-five years, Dexter Research thin-film infrared sensor technology has been the most reliable and durable platform for any non-contact infrared temperature measurement.  Withstanding up to 1,000G's of mechanical shock and 30G's of random vibration, these tiny wonders can provide non-contact temperature sensing accuracy up to 0.1 degrees C.

Now intensive MIL-STD-883H testing performed by Trialon Corporation, an independent testing facility, confirm that Dexter Research's silicon-based temperature sensor detectors meet the same rugged requirements of 1,000G's for mechanical shock and 30G's in random vibration.  Download Dexter's report here (PDF).

Click on any column heading in the table below to re-sort the listing of products in this application category by the specific characteristic of the Dexter detectors.

Thermopile Model# of ChannelsThermopile TechnologyPackage SizeActive Area Size (mm)Output Voltage (µV)Signal to Noise RatioResistance (kΩ)Time Constant (ms)
S25 TO-18 1 Silicon TO-18 .25 x .25 23 1,186 23 16
S25 TO-5 1 Silicon TO-5 .25 x .25 40 2,062 23 18
M5 1 Thin Film TO-5 0.5 Dia 35 5,000 3 28
S60M TO-18 1 Silicon TO-18 .6 x .6 89 2,320 90 18
S60M-TO-5 1 Silicon TO-5 .6 x .6 120 3,125 90 27
M14 1 Thin Film TO-18 .92 x .4 20 2,857 3 14
ST60 TO-18 1 Silicon TO-18 .61 x .61 100 3,193 60 18
ST60 TO-5 1 Silicon TO-5 .61 x .61 110 3,513 60 18
ST60 Diffractive Lens 1 Silicon TO-5 .61 x .61 295 9,425 60 18
ST60 LCC 1 Silicon LCC .61 x .61 62 1,981 60 18
ST60 High Temperature 1 Silicon TO-5 .61 x .61 27 865 60 18
1M 1 Thin Film TO-5 1.0 Dia 60 8,571 3 32
1SC Compensated 1 Thin Film TO-5 1.0 x 1.0 48 3,582 11 48
M34 1 Thin Film TO-5 3.16 x .4 115 10,088 8 38
DR34 Compensated 1 Thin Film TO-5 3.16 x .4 115 7,099 16 38
ST120 1 Silicon TO-5 1.2 x 1.2 190 4,953 90 25
ST150 Diffractive Lens 1 Silicon TO-5 1.5 x 1.5 325 9,286 90 38

Integrated Temperature Measurement Solutions

DexTempTM 1000 Non-Contact Infrared Temperature Monitor - The DexTempTM 1000 is a small, economical, calibrated alerting thermometer that works in conjunction with Windows® based computers and is powered by the computer's USB port.  The easy to install software features real-time temperature plots and user defined over and under temperature alert thresholds that can notify the user with audible and visual alerts on the computer, as well as SMS text and email alerts when a threshold is exceeded. Click for applications, features and more.

Temperature Sensor Module – A low cost solution for non-contact temperature measurements. The sensor is integrated with signal conditioning that reliably produces a calibrated linear digital output in a plug-and-play package having many options. Programmable outputs and flexible power requirements yield a turnkey solution for medical, consumer, commercial and industrial applications. See also the Temperature Sensor Module Datasheet (PDF).

Temperature Sensor Module Evaluation Board - The evaluation board is designed to support the Temperatue Sensor Module, quickly allowing customers to configure the Module for different temperature ranges, optics, etc. to find the best configuration to meet their application needs without the need to design any additional hardware. See also the Temperature Sensor Module Evaluation Board User Manual (PDF).

World's Best Temperature Sensor

Sensor Detector = Temperature. Precise knowledge of a material, cell or living tissue temperature is a core requirement of virtually every industrial process, medical procedure or biomedical culture. Analyzing precise current temperature and temperature transitions are essential to monitoring the weather and the physical environments for humans, animals and crops. Rugged, durable fire detection is a key requirement for safety of our homes, work places, medical centers, and combat vehicles and aircraft.

In the majority of these examples, remote sensing and non-contact temperature sensing is a requirement, either because the temperatures being measured would destroy the monitoring equipment, or because a direct probe would damage or otherwise affect the subject, or because we wish to monitor large geographic areas from the skies.

For this reason, the remote detector and non-contact infrared temperature sensors such as sourced from Dexter Research are classified as one of many Nondestructive Testing techniques designated by the American Society for Nondestructive Testing. Remote sensors and non-contact sensors are both less expensive and much faster means of data collection on the ground, while also leaving their targets or objects undisturbed. Dexter Research’s temperature sensors also offer the ability to detect movement in a target area by sensing changes in temperature. For this reason, the Dexter Research infrared non-contact temperature sensors are also used as motion detectors.

For more than thirty-five years, Dexter Research thin-film infrared sensor technology has been the most reliable and durable platform for any non-contact infrared temperature measurement. Withstanding up to 1,000G's of mechanical shock and 30G's of random vibration, these tiny wonders can provide non-contact temperature sensing accuracy up to 0.1 degrees C.

Recently, intensive MIL-STD-883H testing performed by Trialon Corporation, an independent testing facility, confirms that Dexter Research's silicon-based temperature sensor detectors also meet the same rugged requirements of 1,000G for mechanical shock and 30G in random vibration, delivering the class standard for ruggedness at a significantly lower price.

Because of their accuracy, sensitivity and rugged durability, Dexter Research infrared detectors are the detector of choice for military and combat aviation fire sensing, for NASA space missions and for patient health and safety in a hospital operating room.

Remote sensing generally refers to the use of aerial sensors to identify and classify objects on the surface of the Earth or in its atmosphere and large bodies of water (oceans and lakes) with the data transferred through a wireless or radio frequency strategy. The infrared temperature detectors of Dexter Research are also employed in remote sensing, detecting the horizon in many space missions, and more famously for helping to map the Ozone layer of the Earth.

Dexter Research’s non-contact infrared temperature detector sensors also are used to monitor industrial and biological targets where direct contact could damage or alter the subject or where the heat of the monitored target would destroy any equipment coming into direct contact, such as monitoring the temperature of molten steel for optimum process control and to measure final product quality.

There are a few basic types of infrared detectors; two of these are photonic and thermal. Photonic detectors sense light or other electromagnetic energy. Their response time may be faster and their sensitivity higher, but photonic detectors must be cooled to reduce thermal noise to acceptable levels and require more complex and more expensive engineering. For this reason, they may also be significantly less rugged and durable. For more details about thermal detectors, contact sales@dexterresearch.com.

In any application, Dexter Research’s remote non-contact thermal temperature detectors are passive thermocouple sensors. Our detector sensors use the self-powering thermoelectric effect to detect natural radiation that is continuously emitted or reflected by the target. Unlike photonic technologies, our infrared detectors are world famous for their low thermal noise.

Beautiful in their simplicity, Dexter Research Thermopiles self-power to respond to absolute temperature and to changes in local temperature or temperature gradient from which they generate an electric output signal. This is the thermoelectric effect.

There are many applications across a wide range of unrelated fields, including industrial process control, environmental monitoring, medical patient care, fire detector in a fire suppression system, and for manufacturing product assurance.

Dexter Research infrared thermopiles are used by medical professionals to measure body temperature, and by operating room anesthesiologists to measure the exhaled gases of the patient. Dexter Research infrared detectors are also used in industry as heat flux sensors and gas burner safety controls.

Other uses include, but are not limited to, continuously monitoring temperatures and chemistry throughout the steel making process. Another use of Dexter Research thermopiles may occur at the end of this process, as molten steel cools, to measure the cooling curve to determine its carbon content.

In many gas-fed home and office appliances, such as ovens and water heaters, the infrared thermopile could continuously monitor the pilot light for safety—if the pilot light goes out the dropping temperature of the thermocouple closes the gas valve in the unit. No unburned gas, no potential for explosion.

Incident radiation as low as a few μW/cm2 may be effectively measured by thermopiles, and it is here that Dexter Research’s proven ruggedness adds important safety and reliability. Because of their acute sensitivity, some laser power meters also use infrared thermopiles.

In manufacturing, Dexter Research thermopiles can test prototype electrical and mechanical apparatus, for example to confirm that temperature rise of switchgear under specified current remains within design limits.

If you want to understand what a temperature sensor is or to further explore all the wide-ranging benefits of infrared sensors for temperature, please contact us today at sales@dexterresearch.com.

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