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Wireless Ultrasonic Proximity Sensor 16 × 10mm 80° Directivity For Security Alarm

MSO-P1640H10TR

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Description

Wireless Ultrasonic Proximity Sensor 16 × 10mm 80° Directivity For Security Alarm?

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? ? ?1. Size:D16mm*H10mm ?
Specifications

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Center frequency | 40.0±2.0KHz | 　 |
SPL | ≥110dB | 0dB=0.0002μbar |
Sensitivity | ≥-69dB | 0dB=1volt/μbar |
Directivity | 80°±5 | -6dB typical |
Capacitance | 2800±20%pF | 　 |
Housing material | Aluminum(ABS) | 　 |
Driving Voltage | ≤20Vrms | ? |
Ringing | 2.0ms | ? |
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Drawing(mm)



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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’s ultrasonic sensor?

Ultrasonic sensor:a device that 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 that sound wave to bounce back. By 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.

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How to calculate distances?

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