Edan F6 Fetal Monitor Fan Louder Speaker 5090B38C Good Quality Spare parts of F6 Fetal Monitor
■ Product describe
Fan Louder Speaker is a used but good condition patient monitor spare parts.It is a composite device that combines the functions of a fan and a speaker. Its main function is to enhance the sound propagation distance or simulate specific environmental sound effects (such as wind and engine roar). Its core working principle is to drive or modulate the size of sound waves through the airflow of the fan, so as to achieve directional diffusion of sound or synthesize special sound effects.
■ Functions
1. Long-distance sound amplification: airflow assists sound wave transmission to make the sound propagate farther (commonly used in outdoor equipment, such as ambulance alarms)
2. Environmental sound simulation: produces special effects such as wind sound and mechanical roar.
3. Noise reduction and sound field control: use airflow to offset environmental noise or directionally focus sound waves.
4. Emergency alarm system: strong wind-driven sound has strong penetration, suitable for hospital alarm systems or disaster warnings.
■ Product Pictures
■ Common types
| Type | Features |
| Amplified sound type | Usually a high-power fan with a horn speaker, the sound pressure level can reach 120dB. |
| Special Effects Type | Simulates synthetic special effects sound, and programs DSP to simulate complex sound effects (such as storms, dinosaur roars). |
| Portable | Lithium battery powered, integrated with a small turbo fan. |
| Industrial Grade | Dust proof and waterproof design, resistant to extreme temperatures. |
■ Composition structure
The typical structure of a fan loudspeaker is divided into an acoustic module, an airflow module, and a control module:
1. Acoustic module
Speaker unit: responsible for basic sound generation (such as horn speakers).
Resonance chamber: optimizes the frequency response of sound waves and enhances specific frequency bands (such as low-frequency wind sound simulation).
2. Airflow module
Fan/turbine: generates high-speed airflow. Common types:
Axial flow fan: low noise, suitable for continuous sound amplification.
Centrifugal fan: high-pressure airflow, used for sound wave modulation.
Air duct design: guides the interaction between airflow and sound waves.
3. Control module
DSP processor: adjusts the synchronization of sound waves and airflow (such as real-time pitch change, volume compensation).
Drive circuit: controls the fan speed to match the speaker power.
Sensor (optional): monitors ambient wind speed/noise and automatically adjusts the output (smart model).
■ Key Performance Parameters
| Parameter | Description | Example Value |
| Sound Pressure Level (SPL) | Maximum volume output capability. | 110-130dB |
| Frequency Response | Range of sound waves that can be handled. | 50Hz-15kHz |
| Airflow Speed | Wind speed generated by the fan. | 10-30m/s |
| Power Consumption | Power consumption (AC/DC). | 50W-500W |
| Protection Level | Dust and water resistant standards (such as IP54). | Outdoor models require IP65 or above |
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Edan F6 Fetal Monitor Fan Louder Speaker 5090B38C Good Quality Spare parts of F6 Fetal Monitor Images
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