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What Is Proximity Sensor In Hindi Proximity Sensor Kya Hota Hai


Sensor and its Different Types Details In Urdu/Hindi

Sensor Technology Information In Urdu/Hindi


Sensor aik device hoti hai jo physical quantity ko measure karti hai aur phir isay "signal" mein tabdeel karti hai jisey observer read kar sakta hai ya phir kisi instrument ke zariye read kiya ja sakta hai. Misaal kay taur par aik mercury thermometer measured temperature ko phelata hai aur liquid ke talluq se jisey calibrated glass tube mein parha ja sakta hai. Video cameras aur Digital Cameras mein image sensor laga hota hai. Image sensor image se hasil hone wali information ko agay pohnchata hai. Sensors ki bohat sari mukhtalif iqsam hain kuch rozana istemal hone wali cheezon mein istemal hote hain aur kuch alag se use hote hain jaise ke Thermal Sensors , Electromagnetic Sensors, Mechanical Sensors, Motion Sensors, Car Sensors, Proximity Sensors waghera iske ilawa Sensor se related GPS System ki information aur Fingerprint reader/sensor aur Infrared ki information neche diye gaye links par ja kar parh sakte hain.




Thermal Sensors

Sensor jo temperature ko detect karta hai jiske zariye Mobile Phone ya phir dusri Electronics jaise Smartphone, Air Conditioner, Computer, Laptop aur Tablet waghera mein Temperature ka pata chalta hai wo thermal sensor hota hai. Thermal sensor ko bohat saray laptops mein aur computers mein istemal kiya jata hai jisey heat sensor bhi kaha jata hai kyon ki aksar laptop itna heat up ho jata hai kay uski wajah sey motherboard jal sakta hai jiski wajah sey company ne sensor fit kiya hota hai jesy he wo sensor temperature ko detect karta hai to laptop alarm deta hai ya phir automatically off ho jata hai.

Temperature sensors mein jo sensors shamil hain wo ye hain:

  • Temperature Sensors
  • Thermometers, Thermostats
  • Heat Sensors 
  • Bolometer, Calorimeter

Electromagnetic Sensors



Electromagnetic aisy sensors hote hain jo kisi electronic device ki physical quantity ko measure karne ke liye istemal kiye jate hain jaise kay pressure aur loudness aur phir ye isay aik kisam ke electronic signal mein badal dete hain. (Misaal kay taur par Voltage)

Electromagnetic sensors mein jo sensors shamil hain wo ye hain:

  • Electrical Resistance Sensors: Ohmmeter
  • Electrical Power Sensors: Watt-Hour Meter
  • Magnetism Sensors: Magnetic Compass
  • Electrical Voltage Sensors: Voltmeter
  • Metal Detectors
  • Radar

Ye kisi bhi cheez ke ho sakte hain jiske zariye photons, Electrons ko talash kiya ja sake ye aik sufed deewar ki tarah bhi ho sakte hain aur aik white paper ki sheet ki tarah bhi ho sakte hain aur ya phir ye charge-couple device k jaise ho sakte hain. Jab laser ko detection screen par mara jata hai to us waqt screen par aik roshan daagh dekha ja sakta hai aur jab aik electron phosphorus ko dusri screen par marta hai ye puri screen ko chamka deta hai.

Mechanical Sensors


Mechanical sensors mein jo sensors shamil hain wo ye hain.



  • Pressure Sensors : Barometer
  • Vibration aur Shock Sensors


Motion Sensors


Motion Sensor aik mehdood jagah mein physical yani jismani harkat ka pata lagata hai ye physical movement ko detect karta hai. Motion sensors mein jo sensor shamil hain wo ye hain:

  • Radar Gun, Tachometer
  • Speedometer

Car Sensors

Car sensors mein jo sensor shamil hain wo ye hain:

  • Reversing Sensor
  • Curb Feeler

Proximity Sensor





Proximity sensor aik aisa sensor hota hai jo aas pass ki cheezon ko touch kiye baghair detect kar sakta hai yani ye sensor kisi bhi kisam kay physical contact ke baghair ird gird ki cheezon ka pata laga leta hai.

Proximity mein jo sensors shamil hain wo ye hain:

Types of Proximity Sensors

  • Capacitive
  • Capacitive displacement sensor
  • Doppler effect (sensor based on effect)
  • Eddy-current
  • Inductive
  • Magnetic, including magnetic proximity fuse
  • Optical
  • Photocell (reflective)
  • Laser rangefinder
  • Passive (such as charge-coupled devices)
  • Passive thermal infrared
  • Radar
  • Reflection of ionising radiation
  • Sonar (typically active or passive)
  • Ultrasonic sensor (sonar which runs in air)
  • Fiber optics sensor
  • Hall effect sensor

Proximity Sensors Uses In Applications


Proximity sensor installed on the front of an iPhone 5 next to the earpiece automatically turning off the TouchScreen when the sensor comes within a predefined range of an object (such as a human ear) when using the handset.

Proximity sensor ka istemal Smartphone mein bohat aam hai jo taqreeban latest aane waly har smartphone mein shamil kiya jata hai. Agar aap ne kabhi smartphone istemal kiya hai to aapko pata hoga kay jab aap mobile phone par call karte waqt handset ko apne kaan ke nazdeek le kar jate hain to mobile ki screen automatically off ho jati hai ye proximity sensor he hota hai jo aap ke mobile ki screen ko apke kaan ke sath touch hone se pehle he off kar deta hai.


  • 3D Touch will come true with the aid of proximity sensing elements.
  • Automatic faucets
  • Vibration measurements of rotating shafts in machinery.
  • Parking sensors, systems mounted on car bumpers that sense distance to nearby cars for parking
  • Ground proximity warning system for aviation safety
  • Roller coasters
  • Mobile devices
  • Sheet break sensing in paper machine.
  • Anti-aircraft warfare
  • Top dead centre (TDC)/camshaft sensor in reciprocating engines.
  • Beverage and food can making lines
  • Attenuating radio power in close proximity to the body, in order to reduce radiation exposure
  • Conveyor systems
  • Improvised Explosive Devices or IEDs
  • Touch screens that come in close proximity to the face
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