1、GDQJ-2 型固态地震动强度记录仪MBA-30 型三分向力平衡加速度计简介及英文说明书MBA-30 Three-component Force Balance AccelerometerMBA-30 型三分向力平衡加速度计GDQJ-II Digital RecorderGDQJ-2 型固态地震动强度记录仪GDQJ-2 型固态地震动强度记录仪及传感器技术指标一、记录器性能指标1. 数据采集通道数：3 通道采样率：50sps、100sps 、200sps 和 400sps，程序可选通道延迟：0s动态范围：大于 100dB转换精度：24bit低通滤波：内置高陡度数字 FIR 滤波器。记录器满量程；
2、2.5v噪 声：1LSB传感器接口：3 通道接口。2. 触发方式：1)带通滤波器（0.1Hz 15Hz）阈值触发2)STA 对 LTA（比率或差值）STA采样的整数倍LTASTA 的整数倍,在记录事件期间改变或箝位比率：1.5:1,2:1,3:1,4:1,6:1,8:1 等差：132767A/D 计数每一通道分别设定3)定时触发、键盘触发4)外触发5)对所有的触发方式可以加权,投票表决或其他方式3存储记录介质：非易失的 CMOS SRAM,基本 16Mb 或 SD 卡 8G记录能力：每 Mb13 分钟,200SPS,3 通道数据。事件预存储：040 秒,200SPS,3 通道。以 1 秒为步长
3、。后事件存储：165000 个 A/D 计数最小运行时间：同后事件存储回放装置：RS232 连接,可以现场或 MODEM 遥控使用与 IBM/PC 兼容的微机通信软件完成可连续记录4时间系统时钟稳定性：内部时间系统 106可选 GPS 同步到 UTC 精度 1ms同步：1)键盘键入和输出格式： yyyy-mm-dd hh:mm:sss2)连续和自动解码到外部 IRIG-E3)可选的内部 GPS 接收器4)后备时钟指示器：1PPS 发光二极管5烈度计报警预置：当达到或超过预定值时,事件记录完后对数据作必要的处理,通过 MODEM 自动拨号向中心发送有关信息和烈度值,并存储这些信息。6电源浮充电
4、12V,12AH 的电池功耗：等待状态3w7包括的软件通信软件：查看和设置参数 查看和设置系统时间以及对时接收数据和管理存储器诊断和检查显示软件：记录数据的快速查看和求值放大和缩小绘图数据的统计摘要转换软件：将记录数据转换成标准的 ASCII 码8环境工作温度：-10+50 相对湿度：90%（无冷凝）9外形尺寸：35X26X16（cm）二、三分向力平衡加速度计性能指标测量范围 2g (1g)灵 敏 度 1.25V/g（2.5V/g）动态范围 135dB噪 声 1.25V阻尼常数 0.7输出阻抗 1输出电流 8mA自振频率 80Hz(100Hz)频 带 080Hz（0100Hz）静态电流(三分向
5、) 10mA横向灵敏度 1g/g线 性 度 满刻度的 1%使用温度 -25+65相对湿度 090%尺 寸 12127.5cm重 量 2Kg温度对灵敏度影响(-25+50)0.01%/温度对零点影响（-20+50）0.1gal/ 电源电压波动对零点影响（12VDC 30%） 满刻度 0.01%电源电压波动对灵敏度影响（12VDC 30%） 满刻度 0.01%外形尺寸：18X18X16（cm）GDQJ-II Digital Recorder Operating ManualInstitute of Engineering Mechanics, China Earthquake Administra
6、tion, Harbin Table of Contents1. Getting Started .31.1 Overview .31.2 Introduction .32. Configuring & Operating Instruments .52.1 Working Mode .52.2 Using procedure.52.2.1 Password .52.2.2 Communication with recorder.52.2.3 Monitoring the recorder .62.2.4 Real-time receipt .62.2.5 Quit real-time rec
7、eipt .72.2.6 Setting parameters.72.2.7 Trigger threshold.72.2.8 Upload the trigger file .72.2.9 View waveform.83. Routine Maintenance .93.1 Adjust the zero offset of accelerometer .93.2 Replacement Battery .93.3 Calibration Recorder Time.93.4 Function Test.103.5 Status Check.11Appendix.12MBA-30 Thre
8、e-component Force Balance Accelerometer .121 performance index.122 Use and calibration of the accelerometer .131. Getting Started1.1 OverviewThis Users Manual contains instructions and information pertaining to GDQJ-II digital recorders. Chapter 1 describes overview of GDQJ-II digital recorder. Chap
9、ter 2 describes the overall operation of recorders. Chapter 3 describes the maintenance and service of recorders.1.2 IntroductionGDQJ-II is a three channel digital recorder. Combined with MBA-30 triaxial force-balance accelerometer, it composed a strong motion seismograph system. GPS time system and
10、 modem remote access system are optional components.GDQJ-II digital recorder features a three-channel, 24-bit AD and DSP board that offers approximately 120dB of dynamic range at 200sps.When the ground motion acceleration meets the trigger conditions, the recorder can automatically record the time h
11、istory of event. After one event is recorded, a data file will be created in the recorders memory, and then the record comes into standby mode automatically. In addition to recording the acceleration time history, this recorder can also report the parameters related to the earthquake intensity quick
12、ly. If this function is set, the recorder will automatically analyze the recorded data. The reference intensity and the data related to intensity, such as peak value, duration, main period, and response spectra at four frequencies, can be transmitted to data center through MODEM or telemetry, or by
13、a visit to the recorder site. The recorder can also transmit a continuous stream of digital data in real time.Typically, the recorder contains the following components: System electronic circuit board A rechargeable battery(12V, 12AH) GPS time system OEM circuit boardThe front panel of this recorder
14、 is shown in Fig.1-1.There are power switch, manual trigger switch, GPS antenna connector, RS232 and MODEM connector and sensor connector on the front panel. The power supply of this recorder is 12V, 12AH battery. The battery should be charged in alternating current 220v. After the parameters are se
15、t correctly, the recorder can work automatically.The sensor used with the recorder is MBA-30 triaxial force balance accelerometer made by IEM also.G D Q J - I I D i g i t a l R e c o r d e r1ppsTriggerEventIndicatorPowerIndicatorS e n s o r C o n n e c t o rR S 2 3 2 a n d M O D E M C o n n e c t o
16、rM a n u a l T r i g g e rS w i t c hG P S A n t e n n aC o n n e c tP o w e r S w i t c hFig.1- 1 Schematic diagram of the front panel2. Configuring & Operating Instruments2.1 Working ModeThe digital recorder has two working mode: trigger recorder mode and real-time monitor mode. In normal work, th
17、e digital recorder commonly used to trigger record mode.2.2 Using procedure2.2.1 PasswordFirst, turning on the power switch and inputting the password: “IEM9804”.2.2.2 Communication with recorderWhen truing on power switch, the digital recorder is working on data acquisition state. The recorder moni
18、tors the ground motion continuously by triaxial sensor. When the ground motion acceleration meets the trigger conditions, the recorder can automatically record the time history of event.When connecting the recorder with monitor computer via RS232 cable, the GDQJ4 monitor programme can be running in
19、the monitor computer. Selecting the “record list” icon and clicking right mouse button with the sub-station and choosing the connection command, then the message box appears sub-station connection information. If you can successfully connect to the sub-station, instrument receives commands, and resp
20、onds the commands.Fig.2- 1 connecting the digital recorder2.2.3 Monitoring the recorderWhen connecting the recorder with PC, you can send command to change it status into monitor status. The meaning of monitor command is: if the recorder is recording an event, break recording work and enter the moni
21、toring state. In monitoring state, PC can send function check, status check, Receive real-time file, parameter setting, and memory management commands. Recorders setting parameters can be scented from the PC to recorder when click the Acnowledge setup button. Only in the monitoring state, trigger pa
22、rameters can be modified and validated. Delete the file only take into action in the recorders state changed into the data acquisition mode. After 30 minutes, when the recorder received no new command, it automatically disconnected with PC and transferred to the data acquisition state (except for in
23、 real-time transmission mode).2.2.4 Real-time receiptIn monitoring state, selecting Receive real-time file command, the recorder will transfer triaxial acceleration data to monitor PC with 100 sample rate per second. To view real-time transferring data, you move mouse in the sub-station name, right-click mouse button and select show wave, as shown below figure.
