Product name

Ultrasonic piezo ceramic element for HIFU beauty sensor

Frequency

1 MHz

Diameter

63mm

Shape

sphere

Application

Medical treatment

Abbreviation

Definition

Unit

ε33 T , ε 11 T

Free Relative Dielectric Constant

ε33 S , ε 11 S

Clamping Relative Dielectric Constant

tgδ

Dissipation Factor at Low Field

ρ

Density

g/cm 3

T c

Curie Point

ºC

V

Velocity

m/s

Z a

Accoustic Impedance

Mrayl

K p, K 33, K t, K 31, K 15

Electromechanical Coupling Factors

N p , N 33, N 31, N 15, N t, N c

Frequency Constants

Hz - m

d 33, d 31, d 15

Piezoelectric Strain Constants

10 -12 C/N

d h

Hydrostatic Piezoelectric Strain Constants

10 -3 Vm/N

Q pm

Mechanical Quality Factor at Planar mode

Y 11 E , Y 33 E

Young's Modulus under Short Circuit

10 10 N/m 2

σ

Poisson Ratio

ε33 T (% Per Decade)

Aging Rate of Free Relative Dielectric Constant

K p (% Per Decade)

Aging Rate of Planar Electromechanical Coupling Factor

K t (% Per Decade)

Aging Rate of Coupling Factor at Thickness mode

N p (% Per Decade)

Aging Rate of Frequency Constant of Planar Mode

N t (% Per Decade)

Aging Rate of Frequency Constant at Thickness Mode

ε33 T ( / o C)

Thermal Stability of Free Relative Dielectric Constant

GLOSSARY

BT

Barium Titanate

Hard PZT

Hard Lead Titanate Zirconate Compound

Soft PZT

Soft Lead Titanate Zirconate Compound

Geometry

Size (mm)

Tolerance

Discs

Diameter:   3 to 200

Tolerance according to the piezoelectric elements Industrial standard. 

Thickness:  0.2-25

Tubes

Length:    1-100

OD:       6-180

ID:        5-150

Wall:      0.5-15

Plates

Length:     1-200

Width:      1-200

Thickness:  0.2-25

Sphere

OD:        6-160

ID:         4-150

Wall:       1-10

Rings

OD:        3-180

ID:         1-150

Thickness :  0.2-25

For All Sizes

Flatness

±  0.03

Concentricity

±  0.10

Perpendicularity

±  0.10

Parallelism

±  0.05

Piezoelectric Properties

± 5%

Relative Dielectric Constant

± 15%

ultrasonic flow meters 

hydrophones

accelerometers

piezo transducer vibration

atomizer transducer

matter dispersion

impact-type gas ignitors

precise movement control

pressure sensors  

accelerometers

impact-type gas ignitors

precise movement control

microphones

musical pick-ups

diagnostic medical ultrasound

sound making

level sensors

ultrasonic atomizers

sonar transducer

ultrasonic micro-bonding apparatus

wall thickness sensor

underwater echo sounders

high frequency transducers

high stress pressure ensors

squeeze-type gas

ignitors high power actuators

vibratory motors

transformers 

ultrasonic welding

ultrasonic surgery

material stress sensor

piezo electricity harvesting

biomedical probe

piezo electricity harvesting

fish finder transducer

compression sensor

piezo expansion sensor

beauty transducer

Ultrasonic mixing

calculators,

telephones

car alarm sensor

embryo monitor

heart reflectoscope reflector

pedometer

ultrasonic medical

ultrasonic cleaning

sonochemistry