Sound Field Instrumentation – Service

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1. Sound Field Measurement Service

We offer a comprehensive ultrasound field measurement service for medical, industrial and research-grade ultrasonic transducers and systems.

We offer a comprehensive ultrasound field measurement service for medical, industrial and research-grade ultrasonic transducers and systems. All tests are performed using calibrated hydrophones, automated scanning systems and data acquisition software compliant with relevant standards (IEC 62127, IEC 60601, etc.).

Our measurement services include:

Frequency & Signal Analysis

Determining the working frequency of a pulsed signal
Measuring frequency in continuous wave (CW) mode using successive half cycles
Waveform capture and spectral analysis for diagnostic purposes

Beam and Focal Parameter Characterization

Measuring focal distance, focal zone size, and beam shape
Determining beam width (e.g., -6 dB, -20 dB) and beam area
Measurement of peak positive and negative pressure, pulse intensity integral , and temporal average intensity

Pressure Measurements at Specific Locations

Precise measurement of acoustic pressure at user-defined locations in the field (e.g., at focal point, at tissue-mimicking boundary or near sensitive components)

Acoustic Indices Calculation

Mechanical Index (MI) – critical for safety evaluation
Thermal Index (TI) – estimation of thermal

Sound Field Scanning

2D and 3D automated scanning of the pressure field
Generation of pressure maps, intensity maps and beam profiles
Export in standard formats for modeling or documentation

Certification & Reporting

Full measurement certificate with:
- Device ID and operating mode
- Summary of acoustic parameters
- Compliance references (e.g., IEC/ISO)

Visual documentation of pressure and intensity fields

2. Hydrophone Calibration (Secondary)

Our secondary calibration service uses a reliable, professional setup that meets the IEC standard for precise calibration.

Our secondary calibration service uses a reliable, professional setup that meets the IEC standard for precise calibration. We generate the test signal with a pulse-driven source probe and compare your hydrophone’s response to the output of a calibrated reference hydrophone. For reference, we use a calibrated membrane hydrophone with flat sensitivity, high sensitivity, and a 100-micron active element size, ensuring high-resolution measurements. Through careful analysis and calculations, we deliver a sensitivity curve that shows your hydrophone’s performance across frequencies ranging from 500 kHz to 100 MHz. This ensures accurate, traceable measurements—ideal for routine checks and less demanding applications.

3. AIMD Ultrasound Exposure

This service is designed to assess the impact of ultrasound on AIMDs, ensuring safe and accurate testing conditions.

We provide controlled ultrasound exposure for Active Implantable Medical Devices (AIMDs). Our service includes:
Precise ultrasound exposure to meet your testing requirements
Custom exposure profiles based on your device’s needs

4. Measurement of Acoustic Material Parameters

We provide precise measurements of key acoustic material properties using the Insertion Loss (IL) method, in accordance with the IEC standard.

We provide precise measurements of key acoustic material properties using the Insertion Loss (IL) method, in accordance with the IEC standard. Our services include:

Sound Speed – Accurate determination of the speed at which sound travels through a material
Acoustic Impedance – Measurement of the resistance a material offers to sound propagation
Absorption Coefficient – Evaluation of how much sound energy is absorbed by a material

Additionally, we can measure other acoustic parameters as required, tailored to your specific needs and applications.

5. Custom Services

Consulting on ultrasound system design, Custom measurement or calibration procedures, Assistance with regulatory documentation

Consulting on ultrasound system design or safety evaluation
Custom measurement or calibration procedures per request
Assistance with regulatory documentation (e.g., IE)

6. Training Services

Users receive practical instruction in the handling of the membrane hydrophone as well as the installation and setup of the software.

Our service package includes complete commissioning and training directly on site. This includes setting up and explaining the measurement setup as well as preparing and conditioning the water basin for optimal measurement conditions.

Users receive practical instruction in the handling of the membrane hydrophone as well as the installation and setup of the software. The training is rounded off by demo sound field measurements, during which the typical procedures are explained step by step.

This ensures that the system can be used correctly, efficiently, and safely right from the start.

(VK-15990, VK-21200)

7. Calibration of thermoacoustic sensor by GAMPT

Our service includes the precise calibration of TAS within a selected, predefined frequency range (1 – 6 MHz).

We perform measurements using a high-quality reference hydrophone to ensure reliable and traceable results.
As part of the calibration, we determine all relevant performance parameters:

Sensitivity
Response time
Linearity
Spatial resolution
Frequency response at different frequencies

This comprehensive analysis ensures that your system meets the required accuracy and quality – ideal for applications where precise acoustic measurements are essential.

For each calibration, you will receive both the date file and a certificate.

(VK-31100)

8. Consistency Testing of Hydrophone

Our Consistency Testing service evaluates the sensitivity of your hydrophone at one or more fixed reference frequencies.

Our Consistency Testing service evaluates the sensitivity of your hydrophone at one or more fixed reference frequencies to detect any performance changes, degradation, or potential damage. This test is ideal for ensuring the proper function of your hydrophone between full calibration cycles, offering an efficient way to monitor long-term performance and maintain reliability.

9. Hydrophone Calibration (Primary)

This service is offered as an option when purchasing our hydrophones, giving you the flexibility to choose the most suitable frequency range for your application.

The Primary Calibration service is arranged and managed by our expert team, with the calibration performed by PTB (Physikalisch-Technische Bundesanstalt), Germany’s national metrology institute. Using reference transducers and well-established methods, PTB provides high-accuracy sensitivity calibration. Calibration services are available across different range of frequencies, with different calibration options available depending on your specific needs.
Whether you’re working with new or critical hydrophones, this service ensures traceable, reliable data..
You will receive the data file and a calibration certificate

Puls Calibration Hydrophone

VK-12101
Hydrophon amplitude and phase 0.1 – 100 MHz

Sensitivity calibration of a hydrophone
Determination of Sensitivity amplitude and phase
Frequency range: 0.1-100 MHz
in accordance with IEC 62127-2 standards

TimeDelay Calibration Hydrophone

VK-14025
Hydrophone amplitude 1 – 40 MHz

Sensitivity calibration of a hydrophone
Determination of Sensitivity (Amplitude Only)
Frequency range: 1- 40 MHz
in accordance with IEC 62127-2 standards

VK-140252
Hydrophone phase 1 – 40 MHz

Calibration of phase for membrane hydrophone
Phase response measurements
Frequency range: 1- 40 MHz
in accordance with IEC 62127-2 standards

VK-140251
Hydrophone radius 1 – 40 MHz

Effective radius determination for membrane hydrophone
Directional response measurements
Two axis, +/- 25 deg., @ 5, 10, 15, 20 MHz
in accordance with IEC 62127-2 standards

VK-12025
Hydrophon sensitivity 1 – 20 MHz

Sensitivity calibration of a hydrophone
Determination of sensitivity (amplitude only)
Frequency range: 1 – 20 MHz
in accordance with IEC 62127-2 standards

VK-12005
Hydrophone senistivity 0.5 – 5 MHz

sensitivity calibration of a membrane hydrophone
determination of Sensitivity (amplitude only)
frequency range: 0.5 – 5 MHz
in accordance with IEC 62127-2 standards

10. Primary Hydrophone Calibration for HIFU

This service is offered as an option when purchasing our hydrophones, giving you the flexibility to choose the most suitable frequency range for your application.

HIFU pulse calibration

VK-21100
HIFU Calibration – Broadband Primary Calibration according to PTB Standard
Service of the National Metrology Institute

Our HIFU calibration provides precise and traceable measurements of HIFU hydrophones in the frequency range from 0.1 to 100 MHz. Calibration is performed in 100 kHz increments and includes both amplitude and phase determination in compliance with the guidelines of the Physikalisch-Technische Bundesanstalt (PTB).

Scope of Services:

Broadband primary calibration of the HIFU membrane hydrophone
Determination of phase response across the full frequency range
Performance testing of the HIFU hydrophone
Waveform measurements at 1.06 MHz and 3.32 MHz
Data deconvolution and determination of the minimum detectable pressure
Delivery of a complete data file and calibration report

This calibration ensures maximum accuracy and traceability – ideal for research, development, and quality assurance in the field of High Intensity Focused Ultrasound (HIFU).

HIFU Intensity Test

HIFU hydrophone intensity test neg. 10 – 80 Mpa