12 Questions
What is the primary function of a proximity sensor?
To detect the presence of an object without physical contact
What type of proximity sensor is used for the detection of metallic objects?
Inductive proximity sensor
How does an inductive proximity sensor work?
By generating an alternating magnetic field that is modified by the presence of a metal object
What is the typical operational range of a capacitive proximity sensor?
1 - 10mm
Which of the following is not a common type of proximity sensor?
Resistive proximity sensor
How do photoelectric sensors work?
By using a light source and semiconductor switch to detect the presence of an object
What type of photoelectric sensor uses a special prism reflector to return transmitted light back in the same direction?
Retro Reflective (Polarising) Photoelectric Sensor
In which photoelectric sensor configuration are the transmitter and receiver separate and the object is detected when the reflected beam of light is broken?
Mirror Reflective Photoelectric Sensor
What principle is utilized by Hall Effect sensors to detect the presence of a magnetic field?
Hall Effect
Which type of photoelectric sensor is suitable for circumstances where it is difficult to mount the emitter and receiver directly opposite each other?
Mirror Reflective Photoelectric Sensor
In diffuse reflection, light is reflected in:
All directions
What component of Hall Effect sensors is responsible for producing a voltage difference orthogonal to the normal current flow when placed in a magnetic field?
'Holes'
Test your knowledge about proximity sensors and how they detect the presence of an object without physical contact, typically using inductive or capacitive technology. Learn about common types such as ultrasonic, photoelectric, capacitive, and magnetic proximity sensors.
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