
Sensor Optik dan PIR

Quiz
•
Engineering
•
University
•
Hard
Wulan wulansavitri.2023
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apa fungsi utama dari lensa Fresnel pada sensor PIR?
Mengukur suhu benda
Menghalangi cahaya
Memfokuskan sinar inframerah ke sensor
Mengubah cahaya menjadi arus listrik
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Bagaimana resistansi LDR saat tidak ada cahaya?
Sangat tinggi
Sangat rendah
Rendah
Tidak terpengaruh cahaya
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apa kelebihan utama sensor PIR dibanding sensor optik?
Dapat digunakan dalam kondisi cahaya terang saja
Tidak membutuhkan daya listrik sama sekali
Dapat mendeteksi kehadiran manusia tanpa cahaya
Output-nya berupa perubahan resistansi
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Pada saat apa sensor photodioda bekerja secara maksimal?
Suhu ruangan stabil
Intensitas cahaya tinggi
Suhu sangat dingin
Tidak ada cahaya sama sekali
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apa fungsi dari IR Filter pada sensor PIR?
Menguatkan sinyal
Menyaring gelombang cahaya tertentu
Menghasilkan panas
Mendeteksi gerakan
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Sensor apa yang mendeteksi objek dengan cara memotong sinar antara transmitter dan receiver?
Photoelectric (Through Beam)
Photovoltaic
LDR
PIR
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Bagaimana bentuk output dari sensor PIR?
Arus DC
Sinyal digital (HIGH/LOW)
Tegangan AC
Perubahan resistansi
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