Automotive Backup Sensors

Back up sensor is one of the applications of ultrasonic transducer in the air. Using the piezoelectric ceramic transducer to transmit the ultrasonic signals and receive the echoes, the distance of an obstacle is thus obtained by calculating the time lag between signal transmitting and receiving.

Unictron’s backup sensor element offer high sensitivity, high sound pressure with excellent durability and reliability. Being the major piezoceramic supplier in Taiwan, we can offer piezoceramic discs with various dimensions. Our engineering teams have been working in piezo ceramic industry for more than 25 years. We have sound background in materials formulations and ceramic processing technologies. With advanced characterization and manufacturing facilities, we are able to develop and mass produce various dimensions of piezoceramic elements with high performance to meet your demands.

Applications

  • Piezoceramic transducers to produce ultrasonic signal for distance measurement needed in automotive backup sensors.

Characteristics

  • High sound pressure
  • Excellent durability and reliability
  • High sensitivity
  • Low temperature coefficient
Automotive_backup_sensor_20141014

 

Shape
Diameter
(mm)
Thickness
(mm)
Resonant Frequency
(kHz)
Capacitance
at 1kHz (nF)
tanδ
(%)
Disc
7.0
0.18
300.0 ± 10.0
2.90
2
Disc
5.3
0.15
405.0 ±10.0
1.80
2

* Other dimensions are available upon request.

 

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