Electronic larynx air sounding auxiliary system
An auxiliary system and electronic throat technology, applied in the medical field, can solve problems such as high cost, aspiration infection, and difficulty in achieving sound effects, and achieve the effect of good durability and low cost
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[0015] The following is attached figure 1 To further illustrate the present invention, the electronic throat gas sounding auxiliary system includes a micro gas sensor, an A / D conversion module, a PWM generation module, a controllable electronic air pump, a reed artificial throat and an airway. Place the miniature gas sensor at the postoperative opening of the anterior neck laryngeal cancer, measure the flow velocity and flow parameters of the gas in the throat, and output the corresponding analog signal value; then transmit the analog signal of the miniature gas sensor to the A / D conversion module, The acquired analog signal is converted into a digital signal representing gas flow rate and flow. The PWM generation module generates a pulse width modulation wave (PWM wave) according to the digital signal; the PWM wave is used as a control signal to control the speed of the controllable electronic air pump according to different duty ratios, thereby generating the same flow rate ...
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