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What is an Acoustic Camera?

An acoustic camera (or acoustic imager) is an ultrasonic imaging device for locating and characterizing sound sources, producing a thermographic-style display of sound. Acoustic imaging cameras are ideal for industrial inspections, especially applications like leak detection and partial discharge testing in which personnel need to survey crowded industrial facilities. An acoustic camera can discover sound sources that are difficult to identify, capture images with sound measurements, and even allow you to adjust frequency levels on your display.

How Does an Acoustic Camera Work?

Acoustic imaging cameras work by utilising an array of small, super-sensitive microphones that generate a spectrum of decibel levels per frequency. An algorithm then calculates a sound image that is superimposed over a visual image. The sound image adapts to the frequency level selected – allowing you to hone in subtle sounds in busy environments, like a gas leak on a plant floor.

What is Thermal Imaging?
Thermal imaging is the process of capturing infrared radiation and translating it into thermal images, or thermograms. Thermal imaging shows variations in temperature expressed in colour. Infrared cameras can be incredibly sensitive, displaying heat in great detail with color gradients.

How Does Thermal Imaging Work?
Everything around us emits infrared energy – a heat signature. Thermal imaging works by measuring infrared energy and converting that data into electronic images that display surface temperature. An optical system focused infrared energy to a sensor array, or detector chip, with thousands of pixels in a grid. A matrix of colours corresponding to temperatures is sent to the camera display as a picture.

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