Product Info

MORLAB
Shenzhen Morlab Communications Technology Co., Ltd.
FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road,
Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China
Tel: [phone] Fax: [phone]
Http://www.morlab.cn E-mail: [e-mail]
REPORT No.：SZ21070039S02
Page 16 of 53
6.8. Data Storage and Evaluation
 Data Storage
The DASY software stores the assessed data from the data acquisition electronics as raw data (in
microvolt readings from the probe sensors), together with all the necessary software parameters for
the data evaluation (probe calibration data, liquid parameters and device frequency and modulation
data) in measurement files. The post-processing software evaluates the desired unit and format for
output each time the data is visualized or exported. This allows verification of the complete software
setup even after the measurement and allows correction of erroneous parameter settings. For
example, if a measurement has been performed with an incorrect crest factor parameter in the device
setup, the parameter can be corrected afterwards and the data can be reevaluated.
The measured data can be visualized or exported in different units or formats, depending on the
selected probe type (e.g., [V/m], [A/m], [mW/g]). Some of these units are not available in certain
situations or give meaningless results, e.g., a SAR-output in a non-lose media, will always be zero.
Raw data can also be exported to perform the evaluation with other software packages.
 Data Evaluation
The DASY post-processing software (SEMCAD) automatically executes the following procedures
to calculate the field units from the microvolt readings at the probe connector. The parameters
used in the evaluation are stored in the configuration modules of the software.
Probe parameters： - Sensitivity Norm
i
, a
i0
, a
i1
, a
i2
- Conversion factor ConvF
i
- Diode compression point dcpi
Device parameters： - Frequency f
- Crest factor cf
Media parameters： - Conductivity σ
- Density ρ
These parameters must be set correctly in the software. They can be found in the component
documents or they can be imported into the software from the configuration files issued for the
DASY components. In the direct measuring mode of the multi-meter option, the parameters of the
actual system setup are used. In the scan visualization and export modes, the parameters stored
in the corresponding document files are used.
The first step of the evaluation is a linearization of the filtered input signal to account for the
compression characteristics of the detector diode. The compensation depends on the input signal,
the diode type and the DC-transmission factor from the diode to the evaluation electronics. If the