books infrared counter
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# infrared imaging
# Infrared guidance
# Infrared ruler
# infrared cooker
# Infrared drying
# infrared analyzer
# Infrared heating
# Infrared oven
# What is infrared?
# Infrared spectroscopy
# Infrared Technologies
# infrared telescopes
# Disadvantages of infrared
# infrared detection
# Infrared cons
# Infrared benefits
# Infrared damage
# Infrared concept
# infrared emitters
# infrared sensors
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Source: wikipedia.org
عداد بالأشعة تحت الحمراء (Info)
نفس نظرية عمل الــ Laser Tachometer غير أن وسيلة الكشف عن عدد اللفات هي الأشعة تحت الحمراء (infrared)
