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The optical system used in this method includes

The optical system used in this method includes pLA0a
Based on tissue absorption of infrared light. When the infrared light shines through the hand the tissues will absorb the infrared light, the blood vessel containing the hemoglobin will absorb more than the other areas in the resulting image will show up as a dark area while the surrounding skin absorbs the light. Lower absorption will show up in the resulting image as a bright area. The image will be captured through the optical system and camera and then displayed on the computer. The near-infrared light sources used include high-power LEDs (light emitting diodes) with wavelengths of 740 nm, 850 nm, and 940 nm. The system uses a combined method of capturing scattered and transmitted light at the same time. In this method, the camera is placed in front of the subject to determine the hand tendon, and the infrared illuminator LEDs will be placed on the front and back of the subject to determine the hand tendon.
Based on tissue absorption of
You use this word too often, consider replacing it with
infrared
You use this word too often, consider replacing it with
light
. When the
You use this word too often, consider replacing it with
infrared
You use this word too often, consider replacing it with
light
shines through the hand the tissues will absorb the
You use this word too often, consider replacing it with
infrared
You use this word too often, consider replacing it with
light
, the blood vessel containing the hemoglobin will absorb more than the other areas in the resulting image will
This phrase/word (depending on the context) can be potentially replaced with :
show
up as a dark area while the surrounding skin absorbs the
You use this word too often, consider replacing it with
light
. Lower absorption will
This phrase/word (depending on the context) can be potentially replaced with :
show
up in the resulting image as a bright area. The image will
be captured
through the optical system and camera and then displayed on the computer. The near-infrared
You use this word too often, consider replacing it with
light
sources
This phrase/word (depending on the context) can be potentially replaced with :
used
include high-power LEDs
You use this word too often, consider replacing it with
(light
emitting diodes) with wavelengths of 740 nm, 850 nm, and 940 nm.
Three successive sentences begin with the same word. Consider rewording the sentence or use a thesaurus to find a synonym.
The
system
This phrase/word (depending on the context) can be potentially replaced with :
uses
a combined method of capturing scattered and transmitted
You use this word too often, consider replacing it with
light
at the same time. In this method, the camera
is placed
in front of the subject to determine the hand tendon, and the
You use this word too often, consider replacing it with
infrared
illuminator LEDs will
be placed
on the front and back of the subject to determine the hand tendon.

IELTS essay The optical system used in this method includes

Essay
  American English
1 paragraphs
158 words
This writing has been penalized,
text can't be
less than 250 words in Task 2
and less than 150 words in Task 1
4.0
Overall Band Score
Coherence and Cohesion: 5.5
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    One main idea per paragraph
  • Include an introduction and conclusion
  • Support main points with an explanation and then an example
  • Use cohesive linking words accurately and appropriately
  • Vary your linking phrases using synonyms
Lexical Resource: 6.0
  • Try to vary your vocabulary using accurate synonyms
  • Use less common question specific words that accurately convey meaning
  • Check your work for spelling and word formation mistakes
Grammatical Range: 6.5
  • Use a variety of complex and simple sentences
  • Check your writing for errors
Task Achievement: 6.0
  • Answer all parts of the question
  • ?
    Present relevant ideas
  • Fully explain these ideas
  • Support ideas with relevant, specific examples
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