What is the range of infrared in meters?

What is the range of infrared in meters?

The infrared range is usually divided into three regions: near infrared (nearest the visible spectrum), with wavelengths 0.78 to about 2.5 micrometres (a micrometre, or micron, is 10-6 metre); middle infrared, with wavelengths 2.5 to about 50 micrometres; and far infrared, with wavelengths 50 to 1,000 micrometres.

What is long range infrared?

Long-wave infrared (LWIR) is a subdivision of the IR band of the electromagnetic spectrum, which captures infrared energy in the 8 to 14μm long-wave infrared (LWIR) spectrum. Silent Sentinel offer mid to long range uncooled thermal cameras with lens options up to 300mm.

What nm is far-infrared?

The third region, far-infrared, is closest to microwaves on the electromagnetic spectrum. This region has a wavelength range of 3,000 nm to 1 nm, or 3 to 1,000 microns and a frequency range of 0.3 THz to 20 THz.

What is range of visible spectrum?

The visible wavelengths cover a range from approximately 0.4 to 0.7 µm. The longest visible wavelength is red and the shortest is violet. Common wavelengths of what we perceive as particular colours from the visible portion of the spectrum are listed below.

How far can Infrared travel?

Infrared radiation extends from the nominal red edge of the visible spectrum at 700 nanometers (nm) to 1 millimeter (mm). This range of wavelengths corresponds to a frequency range of approximately 430 THz down to 300 GHz. Beyond infrared is the microwave portion of the electromagnetic spectrum.

What is the range of thermal imaging?

around 14,000 nm
However, while a conventional camera works in the range of visible light, with radiation wavelengths between approximately 400 and 700 nm (or 0.4–0.7 µm), a thermal camera is designed to detect radiation with greater wavelengths, up to around 14,000 nm (or 14 µm).

How do you measure far infrared?

The far infrared radiation derives from the measure of the thermopile output signal and from the knowledge of the instrument temperature. The temperature measure is performed by a 10kΩ NTC which is inside the body of the pyrgeometer. The pyrgeometer can be used also for the study of energy balance.

What is meant by far infrared?

: of or relating to the longer wavelengths of radiation in the infrared spectrum and especially to those between 10 and 1000 micrometers.

What is the range of electromagnetic spectrum?

The electromagnetic spectrum (EMS) is the general name given to the known range of electromagnetic radiation. Wavelengths increase from approximately 10-18 m to 100 km, and this corresponds to frequencies decreasing from 3 × 1026 Hz to 3 ×103 Hz. The image below shows the names given to different regions of the EMS.

What is the energy range of the yellow spectrum?

Wavelengths of light range from about 400 nm at the violet end of the spectrum to 700 nm at the red end (see table)….The visible spectrum.

colour* yellow
wavelength (nm) 580
frequency (1014 Hz) 5.16
energy (eV) 2.14

What is the maximum range of infrared?

What is IR distance?

The IR distance is the distance from the camera that the infra red LEDs can illuminate. It’s a largely useless number and you will never be able to identify someone at this distance. All cameras that have on board infra red illumination will illuminate objects at the identification distance for the lens fitted.

What wavelength is infrared?

The wavelength range is from about 1 millimeter down to 750 nm. The range adjacent to the visible spectrum is called the “near infrared” and the longer wavelength part is called “far infrared”.

What is the thermal infrared range?

IR film is sensitive to infrared (IR) radiation in the 250 to 500 °C (482 to 932 °F) range, while the range of thermography is approximately −50 to 2,000 °C (−58 to 3,632 °F).

What are the dangers of infrared waves?

Infrared waves are incredibly versatile, but they can also be dangerous. Infrared radiation has a longer wavelength and lower frequency than visible light. Too much exposure can damage your eyes and skin. On a global scale, trapped infrared radiation contributes to global warming.

What devices use infrared waves?

Many of the most common uses of infrared radiation are in the area of electronics, as infrared light can be used to transmit signals and data over small spaces. Remote controls, for instance, commonly use infrared light to transmit signals for controlling devices such as televisions and other household electronics.

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