What technique are these parking sensors using?

radar
echo sounding
infrared ranging
electromagnetic induction
Typical parking sensors are ul­tra­son­ic, often a clicking sound may be heard close by. There are also less popular elec­tro­mag­net­ic sensors, that do not require any holes in the bumper, but detect metal objects only.

Answers distribution

radar
echo sounding
infrared ranging
electromagnetic induction
answers
flagDenmark
5%
68%
21%
0%
19
flagSwitzerland
17%
67%
14%
0%
28
flagItaly
8%
56%
16%
20%
25
flagGermany
10%
55%
19%
14%
240
flagthe Netherlands
11%
55%
16%
16%
54
flagNorway
8%
54%
26%
8%
46
flagRepublic of Ireland
17%
53%
22%
6%
45
flagPoland
13%
52%
22%
10%
18021
flagBelgium
17%
52%
4%
21%
23
flagSweden
24%
51%
15%
9%
33
flagAustralia
7%
50%
21%
21%
28
flagCanada
13%
47%
31%
7%
38
flagthe United Kingdom
14%
45%
26%
12%
410
flagIndia
13%
45%
27%
10%
330
flagFrance
27%
45%
10%
13%
37
flagUnknown
14%
44%
28%
11%
1085
flagthe United States
19%
44%
23%
10%
496
flagthe Philippines
17%
39%
21%
21%
28
flagPakistan
14%
33%
14%
38%
21
flagthe United Arab Emirates
9%
28%
42%
14%
21

Gender

men46%
women42%
radar
13%
9%
echo sounding
46%
42%
infrared ranging
28%
31%
electromagnetic induction
10%
16%

Language versions

question
answers
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flag
What technique are these parking sensors using?
1370
42%

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