The first step in calibrating the sensors consists in decoupling the monopoles of each sensor (pair of monopoles) taken individually, and at the same time equalising the responses of the sensors in the entire network of sensors.

The second stage involves calibrating the sensors by determining their transfer functions (converting the measured voltage into an incident E-field).

The calculation of the decoupling and equalisation coefficients for the sensor responses is based on measurements of the S21 transmission parameters between the calibration source and the sensor under test.

The VNA is calibrated in two ports and referenced to the SMA plane of the calibration source and to the SMA plane of the output of the vertical cards. The SMA plane of the CVs is therefore the reference plane for the field measured by the sensors. The S21 measurements quantify the ratio between the RF voltage incident at the SMA input of the calibration antenna and the voltage transmitted at the SMA output of the VCS vertical cards.

By exposing the sensors to the same E-field, with polarisation considered to be pure linear, it is possible to compensate for coupling between the monopoles of the same sensor, and to equalise the responses of all the elements in the sensor network.

SCAL calibration

SVAL validation

The objective of system validation is to verify that the SAR measurement system will not give erroneous results for the measurement of the DUT. This is achieved by testing a sufficiently large set of well-characterised antennas having target values with a minimum uncertainty that encompasses the range of field distributions and signal types encountered with currently available mobile communications devices.

The SAR measurement system is acceptable if the results of the validation measurements comply with the specified criteria

Upgrade service

At ART-Fi we understand the importance of keeping your IT systems up to date to ensure optimum performance. That's why we offer a comprehensive hardware and software upgrade service to meet your evolving needs.

Hardware Upgrade:

Whether you're looking for increased processing power, more storage capacity or connectivity improvements, our expert team can help you choose the components that best suit your needs. Whether it's a simple component replacement or a complete system upgrade, we have the skills and expertise to carry out the necessary changes efficiently and professionally.

Software upgrades :

Regular software upgrades are essential to ensure the security of your system, as well as to benefit from the latest features and performance improvements. We offer software upgrade services for operating systems, applications and programmes specific to your industry. Our team can help you plan and implement these upgrades to minimise disruption and ensure a smooth transition to new versions.

Hardware and Software

ISO 17025

ISO/IEC 17025 specifies the general terms and their definitions relating to conformity assessment, including:
- the accreditation of conformity assessment bodies,
- the use of conformity assessment to facilitate trade.

The standard ISO/IEC 17025 defines accreditation as an "Attestation issued by a third party related to a conformity assessment body conveying formal recognition of its competence to carry out specific conformity assessment tasks".

This translates as a second level inspection carried out on laboratories, inspection bodies and certification bodies in order to certify their competence to perform calibrations, tests or inspections or to certify products, systems or personnel.


Our Satisfaction Guarantee

At ART-Fi, we take pride in the quality of our products and the service we provide to our customers. That's why we offer a 100% satisfaction guarantee. We want you to be completely satisfied with your purchase, and we're here to ensure that happens.

What our guarantee covers:

  • Defective Products: If you receive a product that has a manufacturing or material defect, we commit to replacing it at no extra cost to you.

  • Delivery Issues: If your order is damaged during delivery or if you don't receive your package within the expected timeframe, we will send you a new order or provide you with a full refund.

  • Customer Dissatisfaction: If, for any reason, you're not entirely satisfied with your purchase, we offer the option to return the product within 30 days of receipt for a full refund.

How to make a claim:

Making a claim under our guarantee is simple and hassle-free. Just contact us by phone, email, or through our online contact form, and our customer service team will be happy to assist you in resolving your issue as quickly as possible.

At ART-Fi, your satisfaction is our top priority. With our 100% satisfaction guarantee, you can shop with confidence, knowing that we're here to support you every step of the way.