摘要
研制了一种用于封隔器验封的压力计。该压力计有两个压力传感器,由于选用了可以把微小低频模拟信号直接转换成数字信号的模数转换器AD7705,既简化了电路设计,又提高了可靠性。
A pressure gauge for checking out the packer sealing is developed.This pressure gauge,with two pressure sensors,simplifies the circuit design and improves the reliability due to use of A/D converter AD7705 which can directly convert the tiny low-frequency analog signals into digital signals.
出处
《石油仪器》
2012年第4期23-24,28,共3页
Petroleum Instruments
关键词
验封
双压力传感器
单片机
AD7705
sealing check
dual pressure sensor
chip microprocessor
AD7705
