Impedance Measuring Instrument HS520A For Ultrasonic Transducer

The proper frequency and impedance adjust is indispensable for all ultrasonic devices. The frequency depends mainly on dimensions (e.g.: length of the sonotrode) and the impedance of the quality of material used, assembly, and coupling of the acoustic sets’ parts. Deviations indicate the need for fine tuning, cleaning, re-gripping or re-assembly.

Impedance Measuring Instrument HS520A For Ultrasonic Transducer


HS520A Horn Analyzer dedicated test instrument for quality control of maintenance, manufacturing and power ultrasonic transducers, boosters, horns and acoustic stacks. It determines the frequency, impedance and mechanical quality factor of the device under test. It has a software that makes the adjustment process easier, applies acceptance criteria, generates test reports and saves/compares results.


Part Name

Horn Analyzer

Frequency Range


Frequency Range


Basic Accuracy

< 1%

Scan Speed

5 seconds for each piece (equivalent to 600 scan dots)

Phase Accuracy

0.15 degree

Temperature Range

1040 degree Celsius

Impedance Range


Frequency Step

0.1Hz to Any

Frequency Accuracy

±10 ppm

Net Weight:




Advantages And Benefits:

1.Practicality and ease of use.  No need for ultrasonic expertise.

2.Allows the quality control of ultrasonic transducers reducing technical assistance.

3.Makes fast and accurate manufacturing of sonotrodes possible.

4.Affordable cost.

5.Reduces ultrasonic equipment maintenance costs because it allows preventive maintenance.

Parameters Description:

Fs: resonant frequency

F1 and F2: Half power point 

Gmax; Maximum conductance

R1: Dynamic impedance

Fp: Antiresonant frequency

Qm: Mechanical quality factor

CT: Capacitance

L1: Dynamic inductance

C1: Dynamic capacitance

C0: Static capacitance

Keff: Effective electromechanical coupling coefficient

Kp: Planeelectromechanical coupling coefficient

Pm: The phase value of the resonant frequency point

Zm: Minimum impedance value

Fm: Minimum impedance frequency

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