Model No.: OD90 PZT-41
Piezoelectric ceramic Hemisphere
Electrode direction: electrode plated on the surface inner and outside, radial vibration.
Yuhai company developped ultrasonic sphere elements and custom sphere sizes, this range is fabricated from more than 10 available piezoelectric material formulations according to high sensitive, temperatures etc applications.
underwater acoustics pickups, hydrophones.
Piezoelectric Ceramic Material: PZT-41
|Piezoelectric elements technical data:|
|Dimensions:||Diameter 90mm, thickness 2.7mm|
|Radial frequency Fr:||20KHz ± 2KHz|
|Resonant Impedance R:||≤ 5 Ω|
|Dielectric Loss tg δ:||≤ 0.3%|
|Static capacitance Cs:||85000pF ± 12.5%|
Test Condition: 25±3 °C 40~70% R.H.
fr, Zm, Kr => Radial mode vibration
Cs tanδ => LCR meter at 1KHz 1Vrms
A transducer that converts sound signals into electrical signals is used to receive sound signals in water. It is called a receiving transducer, also known as a hydrophone. Hydrophone is widely used in underwater communication, continental exploration, target location, tracking and so on. It is an important component of sonar. Underwater detection, identification, communication, marine environmental monitoring side and marine resources development are inseparable from underwater acoustic transducer.
The underwater acoustic transducer is a device that converts electrical signal into underwater acoustic signal or underwater acoustic signal into electrical signal. Its position in sonar is similar to that of antenna in radio equipment. It is an acoustic device that transmits and receives acoustic waves underwater. The transducer that converts electrical signals into underwater acoustic signals is used to radiate sound waves into water, which is called transmitting transducer. A transducer that converts sound signals into electrical signals is used to receive sound signals in water. It is called a receiving transducer, also known as a hydrophone.
Usually, the piezo components used in Hydrophones is piezo tube and spheres, made in soft PZT P-5 series and hard PZT P-4 series.
Zibo Yuhai Electronic Ceramics Co., Ltd. (formerly Zibo Wireless Ceramics Factory), founded in 1966, is one of leading manufacturer of piezoelectric ceramic elements and is engaged in the research and development of piezoelectric ceramic elements.
a. In 1986, involved in the formulation of the CB1125~1128-86 ministerial standard for general technical conditions of piezoelectric ceramic materials for underwater acoustics.
b. In 1988, participated in the formulation of the "Measurement and Calculation Method of Performance Parameters of Underwater Acoustic Practical Piezoelectric Ceramic Components" CB1194-88 standard.
c. In 1993, participated the formulation of the CB1218-93 ministerial standard of commonly used piezoelectric ceramic components for underwater acoustics.
d. In 2004, Participated in the formulation of Dielectric Filters Part 1: General Specification SJIEC61337-1:2004, Dielectric Filters Part 2: Guidelines for UseSJIEC61337-2:2004 industry standard.