photosensor: meaning, definition, pronunciation and examples
C1Technical / Scientific
Quick answer
What does “photosensor” mean?
A device or component that detects or measures light intensity by converting photons into an electrical signal.
Audio
Pronunciation
Definition
Meaning and Definition
A device or component that detects or measures light intensity by converting photons into an electrical signal.
In broader contexts, refers to any technology or biological system (e.g., the human eye) sensitive to light, serving as a fundamental component in automation, imaging, and measurement systems.
Dialectal Variation
British vs American Usage
Differences
No significant lexical difference. Spelling and usage are identical.
Connotations
Neutral technical term in both varieties.
Frequency
Equally common in technical contexts in both regions.
Grammar
How to Use “photosensor” in a Sentence
The [Device] uses a photosensor to [Function]A photosensor [Verb: detects/measures/converts] [Light Source][Noun] is controlled by a photosensorVocabulary
Collocations
Examples
Examples of “photosensor” in a Sentence
verb
British English
- The system is photosensing ambient light levels.
American English
- The circuit photosenses the laser pulse.
adverb
British English
- The device reacted photosensorially to the flash.
American English
- It was designed to operate photosensitively.
adjective
British English
- The photosensor module needs shielding.
American English
- Check the photosensor output on pin 7.
Usage
Meaning in Context
Business
Rare. Might appear in technical procurement or product specification documents.
Academic
Common in physics, engineering, robotics, and electronics papers.
Everyday
Very rare. Would be replaced by 'light sensor' or simply 'sensor' in non-technical descriptions.
Technical
The primary register. Used in datasheets, research, and technical manuals.
Vocabulary
Synonyms of “photosensor”
Strong
Neutral
Weak
Watch out
Common Mistakes When Using “photosensor”
- Using 'photosensor' to refer to a camera's image sensor (more specifically a CCD or CMOS sensor).
- Confusing it with 'photoresistor' (a specific, simpler type of photosensor).
- Misspelling as 'photo sensor' (two words is less common in technical compounds).
FAQ
Frequently Asked Questions
Not exactly. A camera sensor (CCD/CMOS) is a complex array of millions of microscopic photosensors. 'Photosensor' is a broader term for any light-detecting component, which can be a single unit.
A photoresistor (LDR) is a specific, simple type of photosensor whose resistance changes with light. 'Photosensor' is the general category, which also includes photodiodes, phototransistors, and more sophisticated devices.
Yes, it can be used metaphorically or analogically to describe biological structures like the retina or photoreceptor cells, though the precise biological terms are preferred.
It is very common in technical fields (electronics, physics, robotics) but uncommon in everyday general English, where 'light sensor' is more frequent.
A device or component that detects or measures light intensity by converting photons into an electrical signal.
Photosensor is usually technical / scientific in register.
Photosensor: in British English it is pronounced /ˈfəʊ.təʊˌsɛn.sə/, and in American English it is pronounced /ˈfoʊ.t̬oʊˌsen.sɚ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “The eyes are nature's photosensors.”
Learning
Memory Aids
Mnemonic
Think: PHOTO (light) + SENSOR (detector) = a detector for light.
Conceptual Metaphor
A PHOTOSENSOR IS AN ELECTRONIC EYE.
Practice
Quiz
Which of the following is the most precise synonym for 'photosensor' in an engineering context?