Method for adjusting signal intensity and equipment

A technology of signal strength and adjustment method, which is applied in the field of optical instruments, can solve the problems of increased noise, lower signal-to-noise ratio, and lower signal-to-noise ratio of the subsequent system, and achieve high signal-to-noise ratio, convenient adjustment, and high signal-to-noise ratio Effect

Inactive Publication Date: 2011-06-29
TIANJIN TUOPU INSTR
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional simple automatic gain compensation method has great limitations. If the gain is too large, the noise will be significantly increased while the signal is enhanced, and the signa

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
  • Method for adjusting signal intensity and equipment
  • Method for adjusting signal intensity and equipment
  • Method for adjusting signal intensity and equipment

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] The present invention will be described in detail below in conjunction with specific embodiments.

[0022] The method for adjusting signal strength of the present invention includes the following steps:

[0023] (1) Set the slit at the spectral bandwidth position required by the user.

[0024] (2) Set the gain adjustment range of the automatic gain adjustment system to 1-100.

[0025] (3) The automatic gain adjustment system detects the energy value currently received by the optical receiver and sends it to the adjustment controller after amplification. The adjustment controller judges that if the energy value is lower or higher than the set threshold, it outputs a control command to the automatic gain Adjust the system to change the overall gain value until the converted energy reaches the threshold standard.

[0026] (4) If the converted energy cannot reach the threshold standard when the gain reaches the maximum value, the signal strength adjustment controller outputs a contr...

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 discloses a method for adjusting signal intensity and equipment. The invention aims to provide a method for adjusting signal intensity and equipment, which can realize the signal intensity adjustment through the matching of automatic gain adjustment and automatic slit adjustment, so that all spectrum sections have higher signal-to-noise ratios. A slit is set at the light spectrum bandwidth position required by a user; the gain adjustment range of an automatic gain adjustment system is set as 1-100; the automatic gain adjustment system is used for detecting the energy value received by a light receiver at present, amplifying the energy value, and transmitting the energy value into an adjustment controller; the adjustment controller is used for judging whether the energy value is lower than or higher than the set threshold value, a control command is outputted to the automatic gain adjustment system to change the overall gain value until the converted energy reaches the threshold value standard; and if the gain value reaches the maximum value, and the converted energy can not reach the threshold value standard, the signal intensity adjustment controller outputs a control command to control a slit servo motor to drive the slit to be opened until the converted energy reaches the thresholds value range.

Description

technical field [0001] The invention relates to the field of optical instruments, and more specifically, relates to a method for adjusting signal strength used in an ultraviolet-near-infrared spectrophotometer and an integrated system of automatic gain and automatic slit servo. Background technique [0002] The wavelength scanning range of the ultraviolet-near-infrared spectrophotometer is 175-3300nm. In the near-infrared region of 860-3300nm, because the spectrophotometer uses double monochromators and the optical path is long, the energy difference of the spectrum emitted by the light source in the near-red band In addition, the sensitivity of the lead sulfide receiver is not uniform in this range. In order to obtain ideal absorbance lines at both higher energy and lower energy, it is necessary to perform real-time monitoring of the overall sensitivity of the instrument. compensate. The traditional simple automatic gain compensation method has great limitations. If the ga...

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): G01J3/02G01J3/04
Inventor 常敬
Owner TIANJIN TUOPU INSTR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap