Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Infrared radiation illumination measuring instrument and method using measuring instrument to measuring infrared radiation illumination

An infrared radiation and illuminance measurement technology, applied in the optical field, can solve the problems of large size, inconvenient to carry, large error, etc., to achieve the effect of ensuring accuracy and stability, solving the problem of portability, and reasonable calibration results

Inactive Publication Date: 2012-10-03
HARBIN INST OF TECH
View PDF1 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of inaccurate and reasonable calibration, large error, low detection accuracy of weak signals, large volume and inconvenient portability of existing irradiance measuring instruments, and provides an infrared irradiance measuring instrument and its application Method for Measuring Infrared Radiation Illuminance by Measuring Instrument

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Infrared radiation illumination measuring instrument and method using measuring instrument to measuring infrared radiation illumination
  • Infrared radiation illumination measuring instrument and method using measuring instrument to measuring infrared radiation illumination
  • Infrared radiation illumination measuring instrument and method using measuring instrument to measuring infrared radiation illumination

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0027] Specific implementation mode one: the following combination figure 1 Describe the present embodiment, the infrared radiation illuminance measuring instrument described in the present embodiment, it comprises main objective lens 1, reticle 2, the first relay lens 3, optical filter 4, attenuation sheet group 5, the second relay lens 6, Photodetector 7, preamplifier 8, lock-in amplifier 9, AD conversion module 10, computer 11 and dial motor speed control and drive circuit 12,

[0028] The parallel light beam is incident on the main objective lens 1, the main objective lens 1 outputs a converging beam and enters the modulation disc 2, the modulation disc 2 outputs a modulated beam and enters the first relay lens 3, and the relay lens 3 outputs a parallel beam and enters the optical filter 4 , the transmitted light beam output by the optical filter 4 is incident on the second relay lens 6 through the parallel attenuated light beam after the attenuating sheet group 5, and the...

specific Embodiment approach 2

[0035] Specific implementation mode two: the following combination Figure 1 to Figure 3 To illustrate this embodiment, the method for measuring infrared illuminance by using the infrared illuminance measuring instrument described in Embodiment 1 includes the following steps:

[0036] Step 1, using a standard infrared collimated light source to calibrate the infrared radiation illuminance measuring instrument 15:

[0037] The infrared collimated light source is realized by a standard blackbody 13, the output beam of the standard blackbody 13 passes through the collimator 14, and the output parallel beam is incident on the infrared illuminance measuring instrument 15, and the standard blackbody 13, the collimator 14 and the infrared illuminance measuring instrument are adjusted 15, so as to satisfy the parallel light beam incident to the infrared illuminance measuring instrument 15 and completely cover the photosensitive surface of the photodetector 7 in the infrared irradiance...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an infrared radiation illumination measuring instrument and a method using the measuring instrument to measuring infrared radiation illumination, belonging to the field of optics, and solving the problems of inaccurate and unreasonable calibration, large error, low precision of detecting weak signals, large size and inconvenience in carrying existing in the current radiation illumination measuring instrument. In the infrared radiation illumination measuring instrument, incident parallel light beams are focused through a main objective lens, and output light beams are modulated through a modulation disc to a first relay lens, a light filter, an attenuation slice group and a second relay lens and is then incident onto the photosurface of a photoelectric detector. The photoelectric detector outputs an electrical signal, the electrical signal is amplified and carries out phase locking and AD (Analog to Digital) conversion, and a voltage signal is output to a computer. The rotational speed of a modulation disc motor is controlled, and a driving circuit controls the modulation of the modulation disc and controls the phase locking of a lock-in amplifier. The measuring instrument uses a standard blackbody to carry out calibration to obtain the relationship between the voltage signal and the infrared radiation illumination, and the measurement to the infrared radiation illumination of an infrared target simulator is realized.

Description

technical field [0001] The invention relates to an infrared radiation illuminance measuring instrument and a measuring method thereof, belonging to the field of optics. Background technique [0002] Infrared target simulators are widely used in the research of military weapons, such as the detection of infrared homing warheads, spaceborne and airborne infrared remote sensing and telemetry equipment. The accuracy and stability of the infrared target simulator need to be guaranteed by the calibration and measurement of the irradiance at the exit pupil. With the continuous deepening of industrial production and military scientific research, the measurement method of irradiance has made great progress, and many countries have invested a lot of manpower and material resources to conduct in-depth research on the calibration and measurement methods of irradiance. The measurement of the output irradiance of the infrared imaging target / interference simulator can be divided into two ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01J1/42G01J1/44
Inventor 萧鹏杨森戴景民
Owner HARBIN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com