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.
globalquiz.org
0
Correct this question
0
Very interesting!
reach: rather globalcarselectronicsparking sensorsphysicssensorstechnology

Answers by country

radar
echo sounding
infrared ranging
electromagnetic induction
answers
flagSwitzerland
6%
56%
18%
18%
16
flagGermany
12%
50%
26%
10%
133
flagGreece
7%
50%
14%
28%
14
flagthe Netherlands
13%
47%
26%
13%
23
flagAustria
11%
47%
35%
5%
17
flagFrance
26%
46%
20%
0%
15
flagPoland
15%
43%
27%
12%
17119
flagIndia
14%
43%
30%
10%
490
flagUnknown
23%
41%
26%
8%
34
flagCanada
23%
40%
33%
3%
30
flagPakistan
14%
35%
25%
25%
28
flagAustralia
10%
34%
28%
21%
38
flagthe United States
22%
33%
29%
12%
430
flagIndonesia
0%
33%
41%
25%
12
flagthe United Kingdom
20%
29%
39%
10%
162
flagSouth Africa
27%
27%
27%
16%
18
flagthe Philippines
11%
26%
35%
26%
34
flagMalaysia
5%
26%
31%
36%
19
flagSingapore
0%
23%
76%
0%
13
flagthe United Arab Emirates
13%
20%
46%
6%
15