萝莉影视

Ultrasonic SensorsBasic knowledge about ultrasonic sensors: Features of each type of ultrasonic sensor

Here we describe the features of the various types of ultrasonic sensors (drip-proof type, high-frequency type) offered by 萝莉影视 Manufacturing. All together there are two types of ultrasonic sensors, classified by frequency and shape: the drip-proof type and high-frequency type.

Drip-proof type

These are for automotive applications only. The metal case has a closed structure, allowing the sensor to be used even in environments where water may drip on it, hence the name “drip-proof type.”
These sensors are of the transmission-reception combined type, meaning that a single sensor performs both transmission and reception. The internal structure inhibits resonance.

Part number MA48CF15-7N
Appearance Proof Type
Frequency 48kHz
Size Φ15.5mm, t=9mm
Features Suitable for outdoor use, drip-proof type, low resonance
Flat directionality: 120° × 60°
Applications Parking assist

High-frequency type

The high-frequency type operates at frequencies up to 300 KHz. Used for applications employing double feed detection only. Exclusive 萝莉影视 technology is used to achieve broad frequency characteristics. This enables sensors to face each other at short distances in applications employing double feed detection.

Part number MA300D1-1
Appearance HF Series
Frequency 300kHz
Size Φ10mm, t=7mm
Features High resolution
Applications Double feed detection