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
6%
75%
12%
0%
16
flagItaly
4%
59%
13%
22%
22
flagthe Netherlands
12%
55%
16%
16%
49
flagNorway
9%
55%
25%
6%
43
flagRepublic of Ireland
17%
55%
22%
5%
40
flagGermany
11%
54%
20%
13%
217
flagPoland
13%
52%
22%
10%
15758
flagAustralia
8%
52%
21%
17%
23
flagBelgium
19%
52%
4%
19%
21
flagLithuania
11%
52%
23%
11%
17
flagSweden
25%
51%
11%
11%
27
flagFrance
25%
48%
11%
11%
35
flagCanada
11%
48%
34%
5%
35
flagthe United Kingdom
14%
47%
25%
12%
357
flagIndia
12%
46%
26%
11%
265
flagUnknown
14%
45%
28%
11%
949
flagthe United States
19%
44%
23%
9%
446
flagthe Philippines
14%
38%
23%
23%
21
flagPakistan
15%
36%
10%
36%
19
flagthe United Arab Emirates
10%
26%
42%
15%
19

Gender

men47%
women43%
radar
14%
9%
echo sounding
47%
43%
infrared ranging
28%
30%
electromagnetic induction
10%
16%

Language versions

question
answers
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What technique are these parking sensors using?
1167
43%

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