High Speed Infrared Cameras Enable Demanding Thermal Imaging Applications

The advanced technology progression on cooled mercury cadmium telluride (MCT) spurred the development of infrared detector technology. With this new technology, high speed infrared camera performance has been propelled forward to another notch that is beneficial to many demanding thermal imaging applications.

High Speed Infrared Cameras Dynamic Features

Now, new dynamic features appear in sophisticated infrared cameras which cover spectral sensitivity in all types of wave bands including two bands. The new technology also brings forth different scopes of camera resolutions caused by a variety of pixel sizes and detector arrays.

High frame rate imaging with adjustable exposure time are part and parcel of the new features on infrared cameras in the market today. Sophisticated features include event triggering and processing algorithms to optimize sensitivity with accurate calibration for optimal digital value output according to object temperatures.

Another type of algorithm known as non-uniformity correction algorithms enhances the infrared camera performance capabilities to support a wide array of thermal imaging applications which were not possible previously. All these features center on the cooled MCT detector which is highly sensitive and versatile for high speed thermal applications.

Understanding Spectral Sensitivity Bands

The different MCT detectors offer high speed infrared cameras to enjoy different spectral bands to function exquisitely. The specific spectral band is activated through the different MCT or HgCdTe alloy composition and the set-point temperature of the detector.

A single band infrared detector results in high quantum efficiency with an impressive high signal-to-noise ratio that is capable of detecting very low levels of infrared signal. 5 nominal spectral bands are available from single-band MCT detectors;

  1. Short-wave infrared cameras
  2. Broad-band infrared cameras
  3. Mid-wave infrared cameras
  4. Long-wave infrared cameras
  5. Very Long Wave cameras

The market today offers monospectral infrared detectors with one band as well as dual band or two color infrared detectors to accommodate various market applications. Certain apps require different spectral radiance on the objects under observation for higher accuracy and clarity such as spectroscopy, laser beam viewing and target signature analysis as well as cold-object imaging. Moreover, different spectral bands are preferred to cater to the various range concerns of different applications.

Image Resolution Dynamics

High speed infrared cameras that are currently available in the market today are designed with different resolution capabilities using infrared detectors of varying array and pixel sizes. A 320×256 array could contain 30 micron pixels to offer an extremely wide dynamic range generated by large pixels that have low noise and very high sensitivity.

Infrared detector arrays come in various sizes such as QVGA, VGA and SXGA. The QVGA is an economic choice with large sensitive pixel and excellent dynamic range while the other two options have a denser array of pixels with higher resolution.

However, modern technology offers smaller pixel pitches in infrared cameras that cause detector arrays to enjoy 15 micron pitch to be highly effective in thermal images. Higher resolution applications require larger array cameras with smaller pixel pitch in order to deliver high contrast pixels with greater sensitivity. Hence, smaller pixel pitch produces smaller optics that leads to greater savings. Infrared camera lenses are designed to have special properties such as flexible focal length, versatile F-number or the aperture and high resolution for clear and accurate images.

Other dynamic features of the high speed infrared cameras include variable exposure time, triggering, frame rate and radiometry. These are extremely useful features to capture the desired image for precision in performing accurate analysis.

Useful Applications

There are many useful applications for high speed infrared cameras which are of great importance in every aspect of life; and the list of applications continues to grow as time passes with more advanced technologies sprouting up.

Some important applications include the imaging of:

  1. fast-moving thermal objects
  2. airbag deployment in testing
  3. turbine blades analysis
  4. dynamic brake analysis
  5. thermal analysis of projectiles
  6. heating effects of explosives

High speed infrared cameras with high sensitivity cooled MCT detectors enable such applications to be successful with high-speed thermal events. The MCT infrared detector works to capture the pixels from the thermal radiation of targeted objects. More high speed events are now under probe with the availability of high performance MCT detector for more accurate and in-depth study and research to advance technology and improve lifestyles.

X-Ray Imaging – The Foundation of Any Medical Treatment

X-ray imaging is widely applied in a myriad of applications especially in the medical arena. Its inventor, Wilhelm Rontgen, discovered this amazing technology in the late 19th century when experimenting with cathode rays.

X-Ray Imaging – Purpose of Invention

The discovery of the Rontgen rays or X-rays imaging led to a leap in diagnostic procedures which manipulate special imaging in the medical field where bone deformities could be identified without harming the human body. Ample protection must be taken while exercising this technique to avoid exposure to the harmful rays. This is where only trained and licensed radiologists are permitted to handle such procedures on patients.

The primary purpose of X-ray imaging is to capture thoracic cavity images, heart, lungs and digestive system as well as breasts and bone density to detect respective highly unusual health conditions. Certain body system or organ deformities could be cancerous or life threatening requiring immediate medical correction but accurate diagnosis must be performed before subjecting the patient to any medical procedure or treatment.

Images by X-ray imaging help doctors analyze a patient’s medical condition accurately for the best of treatment. Its rampant use in the medical arena has ushered it as the foundation of medical treatment since its inception. With X-rays, the skeletal structure and organs are better understood by doctors and students. The right treatment could be administered without wasting time.

Technology Development

X-ray is a common outpatient procedure that takes up very little time. It is widely used in the medical and pathology environments by authorized medical professionals who are licensed and trained. However, various groups of consumers are advised to avoid this type of testing for their safety.

Pregnant women should inform the radiologist or doctor of their condition before subjecting to X-ray procedures as the X-rays may harm the fetus. Digital technology has progressed in leaps and bounds to generate these fluoroscopic x-ray procedures with significant enhancements over them.

X-rays are now widely used in angiographic procedures to check out blood vessels conditions in various organs such as the kidneys, heart, brain, arms and legs. Advanced technologies would probably propel current X-ray techniques into more sophisticated options in the coming decade. Film screen systems and other forms of dynamic digital images via X-rays would be enhanced through emerging technologies like phosphor plate technology.

Digital technology is currently boosting X-ray imaging systems rapidly with more progressive digital solutions that generate highly quality X-ray images with lower dosages. The X-ray images are then manipulated by software for enhancements, easier storage and sharing in diagnosis and treatments.

Most well-equipped hospital and teaching medical schools would manipulate X-rays in their daily operations such as a properly maintained X-ray film library. This facility is made available in retrieving the desired digital images for future references or analysis. Digital imaging or X-rays are rampantly deployed as a high resolution film in the medical arena to enhance medical services and treatments of illnesses and diseases.

A great evolution is expected in this era on X-rays with emerging technologies that would enhance its functionality with advanced elements sprouting up in the market. Continuous research is active to improve the elements of X-rays technique in the medical arena. Greater degrees of safety would be expected of progressive medical X-rays where its rays of energy and wavelength could be toned down to form the desired image of the organ or bones without the danger of radiations passing through the body in any harmful way to the tissues or body system.

Principles of X-rays

Soft tissues are less dense than bones in the body to absorb less X-ray energy; hence, the X-ray image of broken bones, clogged blood vessels or cancerous tissues could be clearly viewed. Other types of abnormalities in the body could be captured via X-ray images.

The principles of fluoroscopy function similarly to X-ray film principles where fluoroscopic imaging generates an X-ray image in motion. Today’s fluoroscopes include an X-ray system and fluorescent screens to store radiated glowing light and X-ray images.

Progressive technologies throughout the decades have permitted many conventional X-ray systems to switch between radiographic and fluoroscopic modes. Modern X-ray machines are able to generate a radiograph or fluoroscopic movie via modern digital acquisition in order that the radiologist controls the image quality more successfully for better interpretation and lower radiation doses.