| 振弦式压力传感器数据采集接口设计 |
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| 引用本文： | 钱占军 李彤. 振弦式压力传感器数据采集接口设计[J]. 测井技术, 1994, 18(6): 450-455 |
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| 作者姓名： | 钱占军 李彤 |
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| 摘 要： | 振弦式压力传感器采用单芯钢丝电缆测压，其信号可以长距离传输，测量电路可以放置地面进行检测。文中给出了一种适合于ＰＣ机接口的数据采集电路，由于采用了有源ＬＣ谐振放大电路，增强了接口的抗干扰能力。本接口已用于“ＳＬ－９２环空数字测井系统”中，并完成了几十口井次的测试。现场应用表明，本接口简单、可靠、测试精度高，为压力测量从人工解释变为计算机数字化记录、计算机自动解释处理创造了条件。
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| 关 键 词： | 地层压力 测量 压力传感器 数据采集 接口 测井 |
Design of Data Acquisition Interface for the Vibration String Pressure Sensor |
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| .Qian Zhanjun et al. Design of Data Acquisition Interface for the Vibration String Pressure Sensor[J]. Well Logging Technology, 1994, 18(6): 450-455 |
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| Authors: | .Qian Zhanjun et al |
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| Affiliation: | .Qian Zhanjun et al |
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| Abstract: | Vibration string pressure sensor is mainly used for pressure measurementswith monocable in annulus test. Signals from the sensor can be transmitted overlong distance and the measurement circuits is on the surface,seperated from thesensor. The data acquisition circuit interfaced with PC is given in this paper. Theanti-interference of the interface has been increased because an additional active LCresonance amplifier is used. The interface has been used in SL-92 Annulus DigitalLogging System. Tens of wells have been logged with it. Its application resultsshow that it is easy to use,reliable and precise. It makes digital recording and computer processing of pressure measurements possible. |
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| Keywords: | formation pressure measurement annulus test pressure sensordata acquisition interface |
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