The utility model relates to a portable fault detection device for High-voltage Cylinder of lithologic density logging tool, in which the city power is reduced by transformer and input into bridge rectifier filter circuit, and the generated DC is sent to the gating circuit through a double-channel DC adjustable voltage-stabilizing circuit, and directly to the interface circuit of the high-voltage cylinder through a constant-voltage DC circuit; and the gating circuit is processed by the gating circuit. The DC signal is sent into the double-display voltmeter, and then into the high-voltage cylinder interface circuit. The high-voltage cylinder interface circuit outputs two high voltages, one is connected with the high-voltage digital meter, and the other is connected with the high-voltage digital meter. Using the utility model, the high-pressure cylinder is directly connected with the interface circuit of the high-pressure cylinder, and the control voltage is manually adjusted by observing whether the output high voltage of the long and short tracks is normal or not. Without the support of ground system and instrument string, the high-pressure cylinder can be detected, the work efficiency is high, and the replacement of high-pressure cylinder can be reduced. The utility model has the advantages of simple structure, low comprehensive cost, convenient portability, and intuitive operation and use.
【技术实现步骤摘要】
便携式岩性密度测井仪高压筒故障检测装置
本技术涉及电子仪器的器件测试领域,具体涉及一种便携式岩性密度测井仪高压筒故障检测装置。
技术介绍
2530岩性密度仪器,使用Cs137作为测量用源,其γ射线的能量为662KeV,与地层物质相互作用时,产生康普顿效应和光电效应。岩性密度测井仪利用康普顿效应和光电效应来测量岩性和密度。该仪器由电子仪NEC和探头LDS两大部分组成,在实际应用中,LDS安装在液压推靠器HAS上,以保证探头LDS贴紧井壁。LDS主要由长、短道电路组成,两道电路组成完全一样,均有光电倍增管和碘化钠晶体、高压组件、跟随放大电路。高压筒为长、短道光电倍增管提供高压,跟随器放大电路分别对长道、短道光电倍增管输出的核脉冲进行跟随、放大。LDS组成中,高压筒为重中之重,它内有两组完全一样的电路,分别为长道LS、短道SS提供高压,均由高压振荡电路和高压倍增电路组成,电路封装在高压筒(柱状金属筒)中。高压筒提供长、短道两个反馈信号给电子仪NEC的高压控制电路,而NEC输出LSOUT和SSOUT来控制高压筒内长、短道高压大小。岩性密度仪电路故障率最高的是小探头LDS, ...
【技术保护点】
1.便携式岩性密度测井仪高压筒故障检测装置,其特征在于:市电经变压器降压,输入桥式整流滤波电路,产生的直流,经双路直流可调稳压电路形成两路可调直流,送选通电路;经恒压直流电路形成的恒压直流,直接送入高压筒接口电路;选通电路输出一路送入双显电压表,一路送入高压筒接口电路;高压筒接口电路分两路,一路分接高压数字表一、长源距高压接线端;一路分接高压数字表二、短源距高压接线端。
【技术特征摘要】
1.便携式岩性密度测井仪高压筒故障检测装置,其特征在于:市电经变压器降压,输入桥式整流滤波电路,产生的直流,经双路直流可调稳压电路形成两路可调直流,送选通电路;经恒压直流电路形成的恒压直流,直接送入高压筒接口电路;选通电路输出一路送入双显电压表,一路送入高压筒接口电路;高压筒接口电路分两路,一路分接高压数字表一、长源距高压接线端;一路分接高压数字表二、短源距高压接线端。2.根据权利要求1所述的便携式岩性密度测井仪高压筒故障检测装置,其特征在于:桥式整流器QZ输出的+21V脉动直流电通过由电解电容C1、无极性电容C2组成的滤波电路送入集成块IC1,集成块IC1的1#引脚连接电位器RP1,调整电位器RP1得到的0~12V区间的直流电压,经无极性电容C3,电解电容C4、C5组成的滤波电路滤波,再次降低纹波系数,...
【专利技术属性】
技术研发人员:廖勇,徐弛,李红松,杨孟芝,胡晓明,陈立新,冯晓利,张朝辉,焦恩翠,徐晨翔,
申请(专利权)人:中石化江汉石油工程有限公司测录井公司,中石化江汉石油工程有限公司,
类型:新型
国别省市:湖北,42
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