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Which sensor can detect nearby objects?

Which sensor can detect nearby objects? Correct Answer Proximity sensor

A proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact. A proximity sensor often emits an electromagnetic field or a beam of electromagnetic radiation, and looks for a change in the return signal.

Related Questions

Which of the following statements regarding defects of vision in human beings is correct? I. A person with Hypermetropia can see nearby objects clearly but cannot see distant objects distinctly. II. A person with myopia can see distant objects clearly but cannot see nearby objects distinctly. 
Statement (I): To use a sensor, we generally need to add signal conditioning circuitry, such as circuits which amplify and convert from analog to digital, to get the sensor signal in the right form, take account of any non-linearities, and calibrate it. Statement (II): A smart sensor is integrated with the required buffering and conditioning circuitry in a single element and provides functions beyond that of just a sensor.
Given below are two statements and four conclusions drawn based on the statements. Statement 1: Some soaps are clean. Statement 2: All clean objects are wet. Conclusion I: Some clean objects are soaps. Conclusion II: No clean object is a soap. Conclusion III: Some wet objects are soaps. Conclusion IV: All wet objects are soaps. Which one of the following options can be logically inferred?
Two machines M1 and M2 are able to execute any of four jobs P, Q, R and S. The machines can perform one job on one object at a time. Jobs P, Q, R and S take 30 minutes, 20 minutes, 60 minutes and 15 minutes each respectively. There are 10 objects each requiring exactly 1 job. Job P is to be performed on 2 objects. Job Q on 3 objects, Job R on 1 object and Job S on 4 objects. What is the minimum time needed to complete all the jobs?
A teacher of class VII asks her learners to bring at least two or three objects from home and she asks them exchange the objects among themselves. She now asks them to describe the objects in their hands In at least ten sentences. What are the objects known as in language teaching-learning materials?
Accommodation is a process in the eye where
1. Ciliary muscles attached to the lens
flatten it for distant objects
2. Ciliary muscles attached to the lens thicken for closer objects
3. Ciliary muscles flatten the lens for closer objects
4. Ciliary muscles thicken the lens for distant objects
Select the correct answer from the options given below:
With reference to defects of vision, consider the following statements: 1. A person with Myopia can see nearby objects clearly but cannot see distant objects distinctly. 2. This defect may arise due to excessive curvature of the eye lens. Which of the statements given above is/are correct?
An Eddy current type displacement sensor can detect which types of objects?
A displacement sensor (a dial indicator) measures the lateral displacement of a mandrel mounted on the taper hole inside a drill spindle. The mandrel axis is an extension of the drill spindle taper hole axis and the protruding portion of the mandrel surface is perfectly cylindrical measurements are taken with the sensor placed at two positions P and Q as shown in the figure. The readings are recorded as Rx = maximum deflection minus minimum deflection, corresponding to sensor position at X, over one rotation. If RP = RQ > 0, which one of the following would be consistent with the observation?
Statement (I): Capacitive proximity sensor can only be used for the detection of metal objects and is best with ferrous metals. Statement (II): One form of capacitive proximity sensor consists of a single capacitor plate probe with the other plate being formed by the object, which has to be metallic and earthed.