Overview of Audio Frequency Current

Audio frequency current therapy is a treatment method that utilizes medium-frequency sinusoidal alternating current within the audio frequency range. The applied frequency ranges from 1000Hz to 4000Hz. Some therapeutic devices also offer audio therapy but mostly use constant-amplitude medium-frequency square wave currents, which are not the waveform used by true audio frequency electrotherapy machines.

The YPD-3A Audio Frequency Electrotherapy Machine is a pure constant-amplitude medium-frequency sinusoidal current therapeutic device. This instrument is fully computer-controlled, featuring two independent output channels with a selectable frequency range of 1000Hz to 4000Hz. The output current is independently adjustable, and the treatment time can be set independently for each channel. It provides a comfortable sensation and is safe and reliable to use.

YPD-3A Audio Frequency Electrotherapy Machine Functions:

Equipped with digital display functionality, dual-channel output, and independent adjustability for both channels.

Output is a constant-amplitude sinusoidal wave.

Output frequencies are 1000Hz, 2000Hz, 3000Hz, and 4000Hz.

Capable of treating two patients simultaneously or providing multi-site treatment for a single patient.

Main Performance Technical Parameters:

Fundamental operating frequency: 1KHz to 4KHz, error: ±10%

Output current: Maximum output current should be no less than 50mA, output current

limit should not exceed 100mA. Error: ±10%.

Treatment time: Treatment time range is 10min to 60min; treatment time timing error: ±10%

YPD-3A Audio Frequency Electrotherapy Machine Scope of Application:

This product has analgesic and anti-inflammatory effects for conditions such as lower back pain, neuralgia, sprains, arthritis, pelvic inflammation, frozen shoulder, and postoperative lumps. It can also loosen scar adhesions and

alleviate vocal cord paralysis.