Application Cases

Experiment Name: Radiofrequency Electroluminescence Experiment

Experiment Content:Generating wireless AC signals to drive electroluminescent fibers using a signal generator and amplifier.

Research Direction:Materials Science

Testing Equipment:ATA-7050 High-Voltage Amplifier, Signal Generator, etc.

Figure: Schematic Diagram of the Radiofrequency Electroluminescence Experimental Setup

Experiment Process:

Connect the signal generator to the high-voltage amplifier, with one end grounded and the other end used for emitting the wireless signal. The specific circuit diagram is detailed in the attached figure. A frequency of 5 kHz can be used, with a voltage of around 1–2 kV. By generating a 2-kHz AC signal with the signal generator and amplifying it using the power amplifier, the resulting signal has one end grounded and the other connected to a metal plane. Placing the electroluminescent fiber within 10 cm of the metal plane allows the fiber to emit light when touched by a human hand. Throughout this process, the signal source, fiber, human body, and ground form an energy loop, enabling the capture of wireless energy to drive the fiber’s light emission. Ultimately, this wireless method enables novel visual applications such as the visualization of solvent polarity, underwater lighting, and touch-activated luminescence.

When the fiber is placed on the wireless working platform and touched with the skin, the fiber emits light wirelessly. The longer the fiber placed, the brighter its luminous intensity. If the fiber is placed in water, the entire fiber will light up. When the fiber is placed in solvents of different polarities, the luminous intensity is directly proportional to the solvent polarity; the higher the polarity, the brighter the light. If the frequency is gradually increased from 200 Hz to 5 kHz, the fiber’s emission color shifts from green to blue.

Experiment Results:

After the fi-fiber receives the wireless signal, it will emit light when touched by hand or placed in water. Placing the fiber on the wireless working platform and touching it with the skin results in wireless luminescence of the fiber. The longer the fiber placed, the brighter its luminous intensity. If the fiber is placed in water, the entire fiber will light up. When the fiber is placed in solvents of different polarities, the luminous intensity is directly proportional to the solvent polarity; the higher the polarity, the brighter the light. If the frequency is gradually increased from 200 Hz to 5 kHz, the fiber’s emission color shifts from green to blue.

Power Amplifier Recommendation:ATA-7050 High-Voltage Amplifier

Figure: Specifications of the ATA-7050 High-Voltage Amplifier