Batteryless on-demand-sampling active radiosonde for intracranial pressure measurement
Batteryless on-demand-sampling active radiosonde for intracranial pressure measurement
复制标题
用于颅内压测量的无电池按需采样有源无线电探空仪
DOI：
10.1007/bf02441329
复制
发表时间：
1981
影响因子：
3.2
通讯作者：
V. Macellari
中科院分区：
文献类型：
--
作者：
V. Macellari
本文介绍一种用于颅内压测量的无线电探空仪。该设备还将温度信息传输到外部，以克服热漂移的影响。探测器由外部通过2毫秒长的无线电频率脉冲串供电，频率为每秒10次。通过脉冲编码调制传输的数据在每个供电突发结束后在外部采样，因为探测器利用存储在相对大的电容器中的能量在供电时间内继续工作约2ms。克服了电源信号与内部测量电路干扰耦合的问题。此外，无线电探空仪的功耗降低到可以忽略不计的水平。
A radiosonde for intracranial pressure measurement is described. The device also transmits temperature information outside to overcome the effects of the thermal drifts. The sonde is powered from the outside through radio-frequency bursts 2 ms long at a frequency of 10 bursts per second. The data, transmitted through a pulse-code-modulation, are sampled outside after the end of each powering burst as the sonde continues to work for about 2 ms over the powering time utilizing the energy stored in a relatively large capacitor. Thus the problems arising from disturbing coupling between powering signal and interior measurement circuits are overcome. Furthermore the radiosonde power consumption is lowered to a negligible level.