利索-全球专利检索

  1. 登录
  2. 注册
实用新型
CN204283400U 一种基于CMOS开关的声波发射电路 失效 - 权利终止

一种基于CMOS开关的声波发射电路
摘要：
本实用新型提供一种基于CMOS开关的声波发射电路，包括充电电路和发射电路，所述充电电路由CMOS集成开关芯片8、储能电容C’及外围电路构成，所述发射电路由CMOS集成开关芯片9、换能器B及外围电路构成，所述CMOS集成开关芯片8的VSS端与所述CMOS集成开关芯片9的VSS端通过串联电阻R2连接，所述CMOS集成开关芯片8的VDD端与所述CMOS集成开关芯片9的VDD端、S1A端和S2B端连接。该电路体积小，集成度高、效率高、结构简单，能有效地抑制了噪声干扰，提高了回波检测的准确性，不会因为温度压力变化产生频偏；可以满足方位立体声波测井、阵列声波测井和随钻声波测井等新仪器的开发需求。
摘要（英）：

The utility model provides a sound wave transmitting circuit based on a CMOS switch. The sound wave transmitting circuit comprises a charging circuit and a transmitting circuit. The charging circuit is formed by a CMOS integrated switch chip (8), an energy storage capacitor C' and a peripheral circuit, and the transmitting circuit is formed by a CMOS integrated switch chip (9), an energy converter B and a peripheral circuit. The VSS end of the CMOS integrated switch chip (8) is connected with the VSS end of the CMOS integrated switch chip (9) through a series resistor R2, and the VDD end of the CMOS integrated switch chip (8) is connected with the VDD end, the S1A end and the S2B end of the CMOS integrated switch chip (9). The sound wave transmitting circuit is small in size, high in integration degree, high in efficiency, simple in structure and capable of effectively restraining noise interference, the accuracy of echo detection is improved, frequency deviation generated by temperature and pressure changes can be avoided, and the development demands for novel instruments for orientation three-dimensional acoustic logging, array acoustic logging, acoustic logging during drilling and the like can be met.

0/0