Ranging level Ultrasonic Distance Sensor 0.2m - 18m Measure for
|Using Method||Dual Use|
|Decay time||ms||1.2 max.|
|Capacitance||PF||2100±20% at 1KHZ|
|Driving Voltage||Vp-p||80 max|
|Operating Tem.Range||℃||-20 to 70|
|Typical sensing range||0.2 – 18m|
Ultrasonic sensor application in the field of security alarm
The ultrasonic sensor is a sensor developed by ultrasonic
characteristics. Ultrasound as a means of detection, must produce
the ultrasonic wave and receiving ultrasonic. The completion of
this function is the ultrasonic sensor device. As the emission part
and a receiving part using ultrasonic sensors, transmitters to be
detection of regional emission amplitude ultrasonic, ultrasonic
receiver to receive the reflected, in the absence of a moving
object enters a region detected, the reflected waves is the
amplitude . When the activity objects into the detection region,
the amplitude of ultrasonic wave reflected unequal, and constantly
changing, the receiving circuit detection signal to the control
circuit changes respond that drives the alarm.
What is an Ultrasonic Sensor?
An Ultrasonic sensor can measure the distance to an object by using
sound waves. It measures distance by sending out a sound wave at a
specific frequency and listening for sound wave to bounce back.
Recording the elapsed time between the sound wave being generated
and the sound wave bouncing back, it is possible to calculate the
distance between the sonar sensor and the object.