Video Tutorials

Watch OMICRON Lab Bode 100 Video Tutorials and experience the simple use of the Bode Analyzer Suite - achieving results could not be easier!

1. Contactless RFID Resonance Frequency Measurement

In this video we measure the self-resonance frequency of an 13.56 MHz RFID transponder using a contactless approach. A one-turn antenna is attached to the Bode 100 vector network analyzer and the RFID transponder card is brought into the electromagnetic field of the antenna. Due to the near-field inductive coupling, the resonance of the transponder can be "seen" from the transmitting antenna

Used Measurement Equipment:
Bode 100 - The Bode 100 is a vector network analyzer that serves as a frequency response analyzer, a gain phase meter and impedance meter as well as a sine wave generator. It can be controlled via the Bode Analyzer Suite, a graphical user interface. An OLE compatible automation interface allows easy integration into automated systems.

2. S-parametr/Transfer function

In this video tutorial we show the difference between a s-parameter measurement and a transfer function measurement. The s-parameter measurement is commonly referred as vector network analysis whereas the transfer function measurement is normally called frequency response analysis. The difference between the two measurements is that the s-parameter measurement is done in a specified impedance system. In this case we measure in the 50Ohm system. The transfer function measurement is not related to a special characteristic impedance but compares the output voltage to the input voltage of an electronic system.
Both measurements are performed on a 25MHz high-pass filter using the Bode 100 VNA.

3. PFC Loop Gain Measurement

In this video we assess the stability of an active power factor correction circuit. We measure the gain of the voltage loop and determine the phase margin and the gain margin using the Bode 100 Frequency Response Analyzer in combination with the B-WIT 100 Wideband Injection Transformer.

4. Documentation functions

The Bode Analyzer Suite is a state of the art graphical user interface providing many useful functions for documenting the measurement results. This video shows how easy it is to archive measurement results or use the measured data for further calculations or data processing.

5. Capacitor Voltage Sensitivity

In this video we demonstrate how the voltage sensitivity of a capacitor can be measured using the Bode 100 VNA. We use a Picotest J2130A DC-Bias injector to apply a DC voltage to the device under test and measure the impedance of the capacitor from 100Hz to 40MHz. The device under test is a ceramic capacitor with a nominal capacitance of 100µF. The measurement shows that the capacitance is strongly influenced by the DC voltage applied to the capacitor. Applying 5V to the 25V capacitor reduces the effective capacitance to 33µF which is only one third of the nominal value. It is very important to consider this effect when designing e.g. an output filter for a switched mode power supply.

6. Capacitor ESR Measurement

This video shows how the ESR of a capacitor is measured using OMICRON Lab's Vector Network Analyzer Bode 100 and the impedance adapter B-WIC/B-SMC. The ESR of a capacitor changes over frequency. This characteristic can have a strong influence e.g. on the stability of power supplies.

7. Zooming Functions

This video shows the basic zoom and cursor features of the Bode Analyzer Suite.
During the demonstration we measure the first series and parallel resonance frequency of a quartz filter using the Vector Network Analyzer Bode 100.

8. Stability Analysis of Power Supplies with the Bode 100

In this video we show how the Bode 100 is used to assess the stability of a linear voltage regulator.
We use the Bode 100 in conjunction with the B-WIT 100 wideband injection transformer to measure the phase margin of a LM317 voltage regulator in the frequency range from 10Hz to 10MHz.

9. Data to memory

In this video we demonstrate how to use the data and memory function of the Bode Analyzer Suite. We are comparing transmission parameter measurements of a quartz filter using the Vector Network Analyzer Bode 100.