proximity detectors

Question 1

Proximity detectors

Answer 1

light detectors
heat detectors
metal detectors

Question 2

most proximity detectors will easily detect

Answer 2

iron (ferrous metal)

Question 3

all metal detectors operate at

Answer 3

radio frequencies

Question 4

a common ferrous metal is

Answer 4

Iron

Question 5

with an all metal detector, a ferrous metal can be sensed at

Answer 5

3 times the distance the distance of a non-ferrou metal

Question 6

with proximity detectors , sensors should be mounted

Answer 6

as far away from each other as possible

Question 7

a proximity detector that can detect non metallic objects usually operates on a change in

Answer 7

capacitance

Question 8

most capacitive proximity detectors have a rnge of approximately

Answer 8

25 mm

Question 9

most capacitive proximity detectorss can sense the presence of

Answer 9

wood
copper
brass

Question 10

ultransonic detectors admit a

Answer 10

high frequency sound

Question 11

mosr ultransonic detectors have a wide range of adjustable

Answer 11

sensing distances

Question 12

proximity detectors are basically

Answer 12

metal detectors

Question 13

emitting a pulse of high frequency sound and then detecting the echo when it bounces off an object is achieved by using a

Answer 13

ultransonic detector