سوالات و اطلاعات برقی

[salahshur]

لطفا هرگونه سوال و اطلاعات برقی به جز اونایی که تاپیک مخصوص دارن مثل avr،روباتیک،plc ،برنامه ها و .... رو دارن اینجا مطرح کنید
به ویژه سوالات تخصصی مربوط به گرایش ها

 

[salahshur]

انواع مبدل ها
Types of transducers

• Electromagnetic:
  • Antenna - converts electromagnetic waves into electric current and vice versa.
  • Cathode ray tube (CRT) - converts electrical signals into visual form
  • Fluorescent lamp, light bulb - converts electrical power into visible light
  • Magnetic cartridge - converts motion into electrical form
  • Pick up (music technology) - converts motion into electrical form
  • Photodetector or Photoresistor (LDR) - converts changes in light levels into resistance changes
  • Tape head - converts changing magnetic fields into electrical form
  • Hall effect sensor - converts a magnetic field level into electrical form only.
• Electrochemical:
  • pH probes
  • Electro-galvanic fuel cell
• Electromechanical (electromechanical output devices are generically called actuators):
  • Electroactive polymers
  • Galvanometer
  • MEMS
  • Rotary motor, linear motor
  • Vibration powered generator
  • Potentiometer when used for measuring position
  • Load cell converts force to mV/V electrical signal using strain gauge
  • Accelerometer
  • Strain gauge
  • String Potentiometer
  • Air flow sensor
• Electroacoustic:
  • Geophone - convert a ground movement (displacement) into voltage
  • Gramophone pick-up
  • Hydrophone - converts changes in water pressure into an electrical form
  • Loudspeaker, earphone - converts changes in electrical signals into acoustic form
  • Microphone - converts changes in air pressure into an electrical signal
  • Piezoelectric crystal - converts pressure changes into electrical form (and electrical signals into acoustic/mechanical form)
  • Tactile transducer
• Photoelectric:
  • Laser diode, light-emitting diode - convert electrical power into forms of light
  • Photodiode, photoresistor, phototransistor, photomultiplier tube - converts changing light levels into electrical form
• Electrostatic:
  • Electrometer
• Thermoelectric:
  • RTD Resistance Temperature Detector
  • Thermocouple
  • Peltier cooler
  • Thermistor (includes PTC resistor and NTC resistor)
• Radioacoustic:
  • Geiger-Müller tube used for measuring radioactivity.
  • Receiver (radio)
  منبع:http://en.wikipedia.org/wiki/Transducer