在临床监测中。呼吸率、脉搏等都是很重要的生理参数。我们可以通过医用换能器,把这些变化微弱的非电量的生理信号转换为相应的电信号,经过前置放大,才能进行观察和测量。为此我们研制了医用前置放大器,其特点是低噪声、高增益、灵敏度高、制作简单,具有较强的实用性和通用 In clinical monitoring. Respiratory rate, pulse, etc. are very important physiological parameters. We can use medical transducers to convert these weak, non-physiological physiological signals into corresponding electrical signals that can be observed and measured after preamplification. To this end we have developed a medical preamplifier, which is characterized by low noise, high gain, high sensitivity, simple production, has strong practicality and versatility