Multispectral infrared target - Multi aperture infrared target - IR 704 infrared radiation source

Multispectral Infrared Target Multi Aperture Infrared Target IR 704 Infrared Radiation Source is a set of multispectral target systems used to test true temperature fields at multiple wavelengths. The system integrates core components such as a blackbody source, an electric aperture wheel, an electric filter, a high-speed shutter, and a high-speed filter shutter. It is designed as a forced air-cooled multispectral and multi aperture target system, which can be directly integrated with a collimator/target projection system or used as a target system. The system operation can be controlled through an internal microprocessor (with RS-232/RS-485 control interface or auxiliary direct hardware port).

Multispectral infrared target - Multi aperture infrared target - IR 704 infrared radiation source includes a ¼ "cavity blackbody source, a 4-hole aperture rotating wheel, a 4-digit filter, a filter control coil, and a shutter control coil. Each function is individually controlled through serial commands, including blackbody temperature control, aperture selection, filter selection, shutter control coil activation, and filter control coil activation. The activation time of the shutter and filter control coils is less than 5ms, which allows the target to achieve a high-speed process from "off" to "dual filtering" and then to "filtering" in less than 10ms.

Its independent control function enables the IR-704 system's filter/aperture/shutter options and variable temperature blackbody radiation source (from 50^oC to 1050^oC) There are 32 different combinations, providing nearly infinite variations in infrared energy output. The internal black body is controlled by the IR-301 controller, and all functions can be remotely controlled through the RS-232 interface.

Infrared Systems Development Corporation (ISDC) was formed in 1997 with the acquisition of Graseby Infrared’s instrument product lines, which were acquired from Infrared Industries (IRI), Infrared Systems (IRS), and Barnes Engineering Company. These products include blackbody sources, spectral radiometer systems, energy modulators and accessories.

The engineering, manufacturing and technical personnel involved with these products since their inception are included in the complement of our personnel.

We have modified and improved many of these products and have developed several new products, such as our infrared detector preamplifiers, and TE Cooled blackbody.

All of our products are developed and manufactured at our facility in Orlando Florida.

We also develop systems for custom applications, and offer design consulting services for many infrared instrument and sub-system projects. Our experienced staff can offer assistance in almost any IR field, and offer suggestions for your system needs. Contact us for more information.

The IR-704 system integrates a Blackbody source, Motorized Aperture wheel, Motorized Filter Wheel, High Speed Shutter and High Speed Filter Shutter. The system was designed as a forced air-cooled Multi-Spectral, Multi-Aperture target system for direct integration with collimator / target projection systems, but can also be used as a direct target system. System operations are controlled by an internal microprocessor with RS-232 / RS-485 control interface, or an auxiliary direct hardware port.

The system is optically arranged with a ¼” Cavity Blackbody source, 4 position aperture wheel, 4 position filter wheel, filter solenoid and shutter solenoid. Each of the assets are individually controlled via Serial port commands to allow Blackbody temperature control, Aperture selection, Filter selection, Shutter solenoid activation and Filter solenoid activation. The activation time of the shutter and filter solenoids is less than 5 milliseconds to allow target high-speed progression from Off to Dual filtered to filtered in less than 10 milliseconds. (components pictured on the left)

working principle:

According to radiation theory, any object that is not at absolute zero (-273.15 ℃) will have thermal radiation at any other temperature. The monochromatic radiation emissivity of a blackbody in thermal equilibrium in the hemisphere direction is a function of wavelength and temperature. At a certain wavelength, the monochromatic radiation emissivity of a blackbody is a single value function of temperature, and the temperature of a blackbody can be obtained by measuring the monochromatic radiation emissivity at a certain wavelength. This is the theoretical basis of radiation thermometry, the Planck radiation law of blackbody radiation.

Generally speaking, an infrared thermal imager uses an infrared detector and an optical imaging objective to receive the infrared radiation energy distribution pattern of the measured target and reflect it on the photosensitive element of the infrared detector, thereby obtaining an infrared thermal image. This thermal image corresponds to the thermal distribution field on the surface of the object. However, currently, the devices that use thermal imagers to obtain thermal images are mainly single wavelength devices, which can only obtain the bright temperature field of the measured target at a specific wavelength and cannot obtain the true temperature field of the measured target. Multi spectral infrared imagers can solve this problem well. Therefore, for multi spectral infrared imagers, calibration is required for targets with different spectra and apertures. The ISDC IR-704/301 system includes a ¼ "cavity type. Blackbody source, 4-hole aperture wheel, 4-digit filter, filter control coil, and shutter control coil. Each function is individually controlled through serial commands, including blackbody temperature control, aperture selection, filter selection, shutter control coil activation, and filter control coil activation. The activation time of the shutter and filter control coils is less than 5ms, which allows the target to achieve a high-speed process from "off" to "dual filtering" and then to "filtering" in less than 10ms. It can be used for various calibrations of multispectral infrared thermal imagers, such as resolution, sensitivity, noise equivalent temperature difference NETD, minimum distinguishable temperature difference MRTD, etc.

Multispectral Infrared Target Multi Aperture Infrared Target IR 704 Infrared Radiation Source Application Range:

• Multi spectral infrared camera calibration
• Calibration of multispectral infrared thermal imager
• Research on Infrared Sensors

Product features:

• Embedded with black body source
• Temperature range: 50-1050^oC
• System filter/aperture/shutter options and black body provide 32 combination options
• Can be used independently or integrated with other systems

Technical parameters:

Temperature range: 50-1050^oC

Transmitter size: 0.25 "cavity

Stability (short/long): 0.1C +/- 0.2C

Fixture/aperture: 2 wheels, 14 positions

Shutter response time:< 5ms

Computer interface: RS-232 / USB

Product size: Target system: 6.125 "H x 8.5" D x 6.125 "W (156x216x156mm)

Controller: 5.1 "H x 13.4" D x 12 "W (130x340x304mm)