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Temperature Black Body calibrator 2020 2021

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Animesh Jana
Animesh Jana

This document discusses blackbody calibrators and their use in calibrating temperature measurement devices like thermal cameras. It describes the principles of blackbody radiation and how different types of blackbody calibrators like cavity, extended area, and differential blackbodies work. It provides details on specific calibrator models and customizable options that include temperature ranges from 10属C to 3000属C, stability levels, aperture sizes, and the ability to integrate targets and choppers.

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TEMPERATURE BLACK BODY CALIBRATOR
BLACK BODY THEORY
THE ELECTROMAGNETIC SPECTRUM
BLACKBODY A black body is a body that always absorbs all EM radiation completely falling on it irrespective of its frequency and angle. There is no real existence of black body. A good approximation is a small hole in the wall of a large insulated hollow enclosure. The incident energy goes inside through this hole and gets reflected again and again against the inner wall of that black body, not able to escape. The hole acts as a perfect absorber. The nature of the radiation leaving the cavity through the hole depends only on the temperature of the cavity.
Wiens Displacement Law
Stefan-Boltzmann Law Visualization of StefanBoltzmann law
Plancks Law
Emissivity The emissivity of an object is the ratio of the energy radiated to that which the object would emit if it were a Black Body. Hence emissivity is expressed Emissivity = Radiation emitted by an object at temperature T Radiation emitted by a Black Body at temperature T Emissivity is therefore an expression of an objects ability to radiate Infrared energy. The value of emissivity tends to vary from one material to another. With metals a rough or oxidized surface usually has a higher emissivity than a polished surface. Here are some examples:
Blackbody Variables
Cavity Shape and Size The size and shape of the cavity can be varied, and there are no fundamental restrictions on creating it, but its emissivity will depend on the size of the aperture compared to the total internal surface area. The lower this ratio is, the better emitter and closer to a blackbody the cavity will become.
TEMPSENS MAKE CAVITY & EXTENDED AREA BLACK BODY
Temperature Black Body calibrator 2020 2021
LBBCH Extended area BB with emitter size up to 300 x 300 mm. Wide Temp Range : 10 to 110 C. (-15 to 120 C Optional). N2 purging facility in case working below ambient (optional). Better aesthetic Design. Absolute mode and Differential mode of operation. Accessories like Chopper /targets can be integrated. Stability: +/- 0.01 C with uniformity +/- 0.2 C. EXTENDED AREA BLACK BODY
EXTENDED AREA BLACK BODY LBBH Wide temp range : 50 to 500 C. Emitter size up to 300 x 300 mm (customized size available). Better aesthetic Design. Better stability of +/- 0.1 C and Uniformity +/- 0.4 C @100 C. Multi zone control . Integrated with PCB. Can be integrated with Separate controller with 5 inch LCD display.
DIFFERENTIAL BLACK BODY Emissive area 80 x 80 mm. Absolute Temperature Range -35属C with respect to ambient to 90属C with respect to ambient. Differential Temperature Range - 30属C to 80属C (Ambient 0属C). Emissive area uniformity 賊0.20属C @50属C Stability 賊0.01属C Display 5 LCD 属C or 属F user selectable . Can be integrated with chopper and target to test MRDT,NETD,MTF Function and other parameters for thermal imagers.
DIFFERENTIAL BLACK BODY USER INTERFACE Absolute Mode: In absolute mode there will be temperature indication for Emitter plate and target but no temperature difference will be shown. We can control only emitter temp only. Differential Mode: In differential mode we can change temperature difference between emitter and target needed. We have to put delta T value as set point. Controller will automatic change emitter temperature to achieve desired delta T value.
DIFFERENTIAL BLACK BODY
BLACK BODY WITH IR TARGETS o Black body can be integrated with various Targets for measure different characteristic of Thermal camera like MRTD, NETD, SiTF, MTF, 3-D Noise etc.
E-O TEST SYSTEM: SETUP FOR TESTING THERMAL CAMERA PROPERTIES APPLICATION
Targets of Different Shapes
Temperature Black Body calibrator 2020 2021
BLACK BODY WITH CHOPPER Aperture wheel integrated with blackbody. Apertures Size : 0.0125'', 0.025'', 0.050'', 0.10'', 0.20'',0.40'',0.60''and 1.0' . (Tolerance 賊 10%). Black body can be integrated with Chopper with The variable frequency range from 2 Hz to 1000 Hz. Aperture wheel Aperture wheel with BB
CAVITY BLACK BODY CALsys 1200BB v1 Highly accurate temperature Calibrator for Industrial / Laboratory field use Cavity type Black body. Wide temp range: 300 to 1200 C. Better aesthetic design with stability +/- 0.5 C. 40 mm aperture Size, Silicon Carbide Cavity.
CAVITY BLACK BODY CALsys 1500BB v1 Highly accurate temperature Calibrator for Industrial / Laboratory field use Cavity type black body. Wide temp range 500 to 1500 C. Better aesthetic design with stability +/- 0.5 C. 40 mm aperture Size, Silicon Carbide Cavity.
CAVITY BLACK BODY CALsys 1700BB v1 Highly accurate temperature Calibrator for Industrial / Laboratory field use Cavity type black body. Wide temp range 500 to 1700 C. Better aesthetic design with stability +/- 1.5 C. 29 mm aperture Size, ceramic Cavity.
CAVITY BLACK BODY FASTCAL 3000 v1 Cavity type Black Body Furnace. Temp range : 600 to 3000 C. Cavity Accuracy : +/- 0.25 % of Set Temp +/- 1 C. Resolution : 0.1 C Stability : +/- 1C Emissivity : 0.9995(+/- 0.005) Cavity : Closed end graphite tube length 292 mm heated length 127 mm. Safety interlock: Cooling water over temp, low purge gas flow, low cooling water flow rate, over current and over temp protection.
FAST CAL GRAPHITE CAVITY ASSEMBLY FASTCAL 3000
FASTCAL 3000 & AUTOMATIC CALIBRATION High temp BB with Automatic Calibration System for testing multiple pyrometers. Multiple desired temperature set points can be pre programmed for calibrating pyrometer or thermal camera. FASTCAL 3000
CUSTOMISED CALIBRATOR CLIMATE CHAMBER WITH BB Temperature range 0 to 70 C with stability +/- 0.25C. CALsys 1000BB Temperature range 50 to 1000 C with stability +/- 0.3 C . Aperture Size 29 mm.
Parameters Specification Temperature Range 20 to 50 C Power 100W Supply Frequency 50/60 Hz Resolution 0.01属C Stability 賊 0.01 at 37属C Time to reach max. Temperature 10 to 15 Min. Operating Temperature 5 to 50 属C Dimensions 150 (H) x 110(W) x 137(D) mm Emissivity 0.98 (賊0.01) Working aperture 70 mm X 70 mm Weight Approx 4 kg BLACK BODY CALIBRATOR CALsys 37BB+
Parameters Specification Temperature Range Ambient +5属C to 50属C Power 100W Supply Frequency 50/60 Hz Resolution 0.01属C for CALsys 37BB-A 0.1属C for CALsys 37BB-B Stability 賊 0.04 at 37属C Time to reach max. Temperature 10 to 15 Min. Operating Temperature 20 to 40 属C Dimensions 110 (H) x 110(W) x 137(D) mm Emissivity 0.98 (賊0.01) Working aperture 70 mm X 70 mm Weight Approx 3 kg BLACK BODY CALIBRATOR CALsys 37BB
SPECIAL FEATURES & VARIENTS High Accuracy High Stability Simple to use and cost effective Portability It has Tripod/Wall Mounting provision Reference RTD port for RTD calibration.
TESTING BLACKBODY
THANK YOU

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Temperature Black Body calibrator 2020 2021

  • 4. BLACKBODY A black body is a body that always absorbs all EM radiation completely falling on it irrespective of its frequency and angle. There is no real existence of black body. A good approximation is a small hole in the wall of a large insulated hollow enclosure. The incident energy goes inside through this hole and gets reflected again and again against the inner wall of that black body, not able to escape. The hole acts as a perfect absorber. The nature of the radiation leaving the cavity through the hole depends only on the temperature of the cavity.
  • 8. Emissivity The emissivity of an object is the ratio of the energy radiated to that which the object would emit if it were a Black Body. Hence emissivity is expressed Emissivity = Radiation emitted by an object at temperature T Radiation emitted by a Black Body at temperature T Emissivity is therefore an expression of an objects ability to radiate Infrared energy. The value of emissivity tends to vary from one material to another. With metals a rough or oxidized surface usually has a higher emissivity than a polished surface. Here are some examples:
  • 10. Cavity Shape and Size The size and shape of the cavity can be varied, and there are no fundamental restrictions on creating it, but its emissivity will depend on the size of the aperture compared to the total internal surface area. The lower this ratio is, the better emitter and closer to a blackbody the cavity will become.
  • 11. TEMPSENS MAKE CAVITY & EXTENDED AREA BLACK BODY
  • 13. LBBCH Extended area BB with emitter size up to 300 x 300 mm. Wide Temp Range : 10 to 110 C. (-15 to 120 C Optional). N2 purging facility in case working below ambient (optional). Better aesthetic Design. Absolute mode and Differential mode of operation. Accessories like Chopper /targets can be integrated. Stability: +/- 0.01 C with uniformity +/- 0.2 C. EXTENDED AREA BLACK BODY
  • 14. EXTENDED AREA BLACK BODY LBBH Wide temp range : 50 to 500 C. Emitter size up to 300 x 300 mm (customized size available). Better aesthetic Design. Better stability of +/- 0.1 C and Uniformity +/- 0.4 C @100 C. Multi zone control . Integrated with PCB. Can be integrated with Separate controller with 5 inch LCD display.
  • 15. DIFFERENTIAL BLACK BODY Emissive area 80 x 80 mm. Absolute Temperature Range -35属C with respect to ambient to 90属C with respect to ambient. Differential Temperature Range - 30属C to 80属C (Ambient 0属C). Emissive area uniformity 賊0.20属C @50属C Stability 賊0.01属C Display 5 LCD 属C or 属F user selectable . Can be integrated with chopper and target to test MRDT,NETD,MTF Function and other parameters for thermal imagers.
  • 16. DIFFERENTIAL BLACK BODY USER INTERFACE Absolute Mode: In absolute mode there will be temperature indication for Emitter plate and target but no temperature difference will be shown. We can control only emitter temp only. Differential Mode: In differential mode we can change temperature difference between emitter and target needed. We have to put delta T value as set point. Controller will automatic change emitter temperature to achieve desired delta T value.
  • 18. BLACK BODY WITH IR TARGETS o Black body can be integrated with various Targets for measure different characteristic of Thermal camera like MRTD, NETD, SiTF, MTF, 3-D Noise etc.
  • 19. E-O TEST SYSTEM: SETUP FOR TESTING THERMAL CAMERA PROPERTIES APPLICATION
  • 22. BLACK BODY WITH CHOPPER Aperture wheel integrated with blackbody. Apertures Size : 0.0125'', 0.025'', 0.050'', 0.10'', 0.20'',0.40'',0.60''and 1.0' . (Tolerance 賊 10%). Black body can be integrated with Chopper with The variable frequency range from 2 Hz to 1000 Hz. Aperture wheel Aperture wheel with BB
  • 23. CAVITY BLACK BODY CALsys 1200BB v1 Highly accurate temperature Calibrator for Industrial / Laboratory field use Cavity type Black body. Wide temp range: 300 to 1200 C. Better aesthetic design with stability +/- 0.5 C. 40 mm aperture Size, Silicon Carbide Cavity.
  • 24. CAVITY BLACK BODY CALsys 1500BB v1 Highly accurate temperature Calibrator for Industrial / Laboratory field use Cavity type black body. Wide temp range 500 to 1500 C. Better aesthetic design with stability +/- 0.5 C. 40 mm aperture Size, Silicon Carbide Cavity.
  • 25. CAVITY BLACK BODY CALsys 1700BB v1 Highly accurate temperature Calibrator for Industrial / Laboratory field use Cavity type black body. Wide temp range 500 to 1700 C. Better aesthetic design with stability +/- 1.5 C. 29 mm aperture Size, ceramic Cavity.
  • 26. CAVITY BLACK BODY FASTCAL 3000 v1 Cavity type Black Body Furnace. Temp range : 600 to 3000 C. Cavity Accuracy : +/- 0.25 % of Set Temp +/- 1 C. Resolution : 0.1 C Stability : +/- 1C Emissivity : 0.9995(+/- 0.005) Cavity : Closed end graphite tube length 292 mm heated length 127 mm. Safety interlock: Cooling water over temp, low purge gas flow, low cooling water flow rate, over current and over temp protection.
  • 27. FAST CAL GRAPHITE CAVITY ASSEMBLY FASTCAL 3000
  • 28. FASTCAL 3000 & AUTOMATIC CALIBRATION High temp BB with Automatic Calibration System for testing multiple pyrometers. Multiple desired temperature set points can be pre programmed for calibrating pyrometer or thermal camera. FASTCAL 3000
  • 29. CUSTOMISED CALIBRATOR CLIMATE CHAMBER WITH BB Temperature range 0 to 70 C with stability +/- 0.25C. CALsys 1000BB Temperature range 50 to 1000 C with stability +/- 0.3 C . Aperture Size 29 mm.
  • 30. Parameters Specification Temperature Range 20 to 50 C Power 100W Supply Frequency 50/60 Hz Resolution 0.01属C Stability 賊 0.01 at 37属C Time to reach max. Temperature 10 to 15 Min. Operating Temperature 5 to 50 属C Dimensions 150 (H) x 110(W) x 137(D) mm Emissivity 0.98 (賊0.01) Working aperture 70 mm X 70 mm Weight Approx 4 kg BLACK BODY CALIBRATOR CALsys 37BB+
  • 31. Parameters Specification Temperature Range Ambient +5属C to 50属C Power 100W Supply Frequency 50/60 Hz Resolution 0.01属C for CALsys 37BB-A 0.1属C for CALsys 37BB-B Stability 賊 0.04 at 37属C Time to reach max. Temperature 10 to 15 Min. Operating Temperature 20 to 40 属C Dimensions 110 (H) x 110(W) x 137(D) mm Emissivity 0.98 (賊0.01) Working aperture 70 mm X 70 mm Weight Approx 3 kg BLACK BODY CALIBRATOR CALsys 37BB
  • 32. SPECIAL FEATURES & VARIENTS High Accuracy High Stability Simple to use and cost effective Portability It has Tripod/Wall Mounting provision Reference RTD port for RTD calibration.