Plants, gene therapy for malignant tumors and other diseases, large scale parallel computing, optical fiber amplifier and pump, infra-red adaptive optics observation system for 2.16-meter telescope, 2.48 GB/S SDH high speed optical fiber transmission system, airborne real-time remote sensing imaging transmitting and processing system, STEP-based CAD/CAPP/CAM system, 6, 000-meter autonomous underwater vehicle, high-temperature gas-cooled reactor, double-layer glow plasma surface alloying technology, and''.
重大关键技术项目：两系法杂交水稻技术、抗虫棉花等转基因植物、恶性肿瘤等疾病的基因治疗技术、大规模并行计算、光纤放大器及泵源、2.16米高分辨率自适应光学望远镜、2.48gb/ssdh高速光纤传输系统、航空遥感实时成像传输处理系统、基于step的cad/capp/cam系统、6000米水下自治机器人、高温气冷堆、双层辉光离子渗金属技术、金钢石膜制备技术
Plants, gene therapy for malignant tumors and other diseases, large scale parallel computing, optical fiber amplifier and pump, infra-red adaptive optics observation system for 2.16-meter telescope, 2.48 GB/S SDH high speed optical fiber transmission system, airborne real-time remote sensing imaging transmitting and processing system, STEP-based CAD/CAPP/CAM system, 6, 000-meter autonomous underwater vehicle, high-temperature gas-cooled reactor, double-layer glow plasma surface alloying technology, and research of the diamond film
重大关键技术项目：两系法杂交水稻技术、抗虫棉花等转基因植物、恶性肿瘤等疾病的基因治疗技术、大规模并行计算、光纤放大器及泵源、2.16米高分辨率自适应光学望远镜、2.48gb/ssdh高速光纤传输系统、航空遥感实时成像传输处理系统、基于step的cad/capp/cam系统、6000米水下自治机器人、高温气冷堆、双层辉光离子渗金属技术、金钢石膜制备技术
Test speakers, amplifier and other equipment - The pulses generated by the meter have a fast rise and fall time, so it would probably make a crude RF signal injector as well.
测试扬声器，放大器和其他设备-脉冲所产生的电表有较快的上升和下降时间，所以很可能会作出一个粗略的射频信号，喷油器等。
It measures the range and frequency of the vortex flow meter output signals by the analog to digital converter of the DSP on real time, and the gain of the variable gain amplifier is controlled by the digital to analog converter, then the relative stable range of the sensor output signals can be obtained.
利用DSP上集成的模拟数字转换电路实时检测涡街流量计传感器输出信号的幅度和频率，采用数字模拟转换电路对变增益运放进行控制，控制传感器输出信号幅度的相对稳定。
Mainly engaged in the project are: 1, lithium battery protection board, power type (power tools, electric vehicles, model aircraft) lithium battery protection board; 2, switching power supply, adapters, chargers; 3, high power audio, amplifier, communications power inverter power supply; 4, solar cells program, program charger, portable power supply; 5, special power supply/power supply, as well as smart power management system; 6, LED drivers, all kinds of high-frequency electronic circuit design, update problem-solving/Circuit Design and so on; Electronics 8514C has°load, four-channel Tektronix TDS2014B Oscilloscopes, Tektronix Current Probe, Power Instrument/high voltage tester, spectrum analyzer proposed, frequency meter, signal generator, the high and low temperature environment for the control room and other advanced equipment and a group of highly professional and well-motivated research in science and technology, design professionals; have the ability to achieve all-round, the perfect integration services.
主要经营项目有：1、锂电池保护板、动力类（电动工具、电动车、航模）类锂电池保护板；2、开关电源、适配器、充电器；3、大功率音响、功放、通讯电源、逆变电源；4、太阳能电池方案、充电器方案、便携电源；5、特种电源/智能电源以及电源管理系统；6、LED驱动，各种高频电子电路的设计，更新解难/电路设计等；公司拥有艾德克斯8514C电子负载、泰克TDS2014B四通道示波器、泰克电流探头、功率仪/高压测试仪、频谱分析议、频率计、信号发生器、高低温环境控制室等先进设备和一批专业素质高、干劲十足的科研技术、设计人才；有能力做到全方位、一体化的完美服务。
Product application areas throughout: computers and peripherals, home appliances, sensor sanitary ware, instruments, toys, industrial automation, CD, VCD, DVD, MP3, VOD, Disman, TV, air-conditioning control panel, fan control panel, satellite receiver, Electronic watt-hour meter, hand dryers, power amplifier, audio, toys, printers, repetition, fax machines, cell phones, switching power supply, automatic test equipment and so on.
产品应用领域遍及：电脑及周边设备、家电产品、感应洁具、仪表、玩具、工业自动化、CD、VCD、DVD、MP3、VOD、Disman、TV、空调控制板、风扇控制板、卫星接收机、电子电度表、干手机、功放、音响、玩具、打印机、复读机、传真机、手机、开关电源、全自动检测设备等等。
This article mainly describes the design of digital frequency method and the steps that the frequency meter from the main amplifier, plastic circuit, counter, gate control and display circuits, and other five components.
本文主要介绍设计数字频率计的方法和步骤，该频率计主要由放大电路、整形电路、计数器、闸门控制电路、显示电路等五部分组成。
In this paper, the principle of making an optical power meter using the amplifier and silicon photocell is introduced.
介绍使用运算放大器以及硅光电池制作光功率计的原理以及制作的过程。
A new technology of airspeed meter of micro air vehicle based on micro difference pressure senso, micro amplifier and DSP is introduced.
介绍了一种采用微差压传感器、微型放大器、微功耗数字信号处理器（DSP）设计的新型微型飞行器空速计。
Methods: The coronary blood flow and cardiac output were measured by electromagnetic flow meter. The internal pressure of left ventricle was determined by carrier amplifier and the blood oxygen content was determined by oximeter.
方法：用电磁流量计分别测量冠脉血流量及心输出量，用载波放大器测定左室内压，用血氧分析仪测量血氧含量。
The system is composed of GTEM cell, double directional coupler, power meter, power amplifier, signal generator, RF switch and computer.
文中给出了一套适合我航天型号电磁兼容测试要求的GTEM电磁敏感度测试系统。该测试系统由GTEM、双定向耦合器、功率计、功率放大器、射频开关矩阵、信号源、计算机组成。
In order to adapt the development from the MPM to the MMPM, this paper has done some exploringly research on the milli-meter wave equalizer and proposed a circuit template that can carry the power equalizer in Ka band out. This thesis has proved the feasibility of realizing the milli-meter wave power equalizer used this circuit template by the way of computer simulation and experiment, and finally concludes a useful method for designing the milli-meter wave power equalizer. Keywords: Microwave Power Module, Milli-meter Wave Power Module, Solid-State Power Amplifier Driving Module, Power Equalizer
为了适应微波功率模块MPM向毫米波功率模块MMPM的进一步发展，本论文对毫米波功率均衡器进行了探索性的研究，提出了一种在Ka波段实现功率均衡器的电路拓扑，并用计算机仿真和实验证明了此种拓扑结构实现毫米波功率均衡器的可行性，最终归纳出一种切实可行的毫米波功率均衡器的设计方法。
The combined circuit device of transducer and amplifier in water-measuring meter
量水仪表中传感器与放大器组合控制电路设计
Secondly, experiments were made to analyze the effect of the wheel damper, we used the system composed of a self-made pendulum, three acceleration sensors, a four-channel charge amplifier, a sound level meter, a signal collection analyzer and the DASP software.
其次，对车轮阻尼器的降噪效果进行实验分析。实验采用激振单摆、加速度传感器、电荷放大器、声级计、智能信号采集处理分析仪以及DASP软件组成的测试系统。
This article presents the Characteristics and design thoughts of the Pre-amplifier of PH Meter, the application of the relevant techniques of EMC and the measures that used in the design.
介绍了PH计前置放大器的特点及其设计思想，阐述了电磁兼容相关技术的应用以及设计中所采取的措施。
On one hand, it uses the temperature control chip with PID compensation network to trace and control the laser diode`s temperature and designs APC circuit to control the power of the laser diode in design, so does the laser diode have a high-stabilized output; on the other hand, it adopts low noise amplifier and PIN detector with low dark current and high responsibility to design the high sensibility optic-receiver. It improves the S/N of the optic-receiver and the dynamic rang of the meter by optimization and anti-jamming designing of the receiver, using the numerical average method of digital signal processing, restraining the receiver noise within the limit and using the Y form coupler to reduce the reflection of the front port of the fiber.
在设计与制作中采用了带PID补偿网络的高精度温度控制芯片，对激光器温度进行跟踪和控制，并通过APC电路对其功率进行控制，使激光器输出高稳度激光；同时采用低噪声放大器和低暗电流、高响应度PIN光电探测器，设计了高灵敏度的光接收机，通过对光接收机进行优化和抗干扰设计以及使用数字平均的信号处理方法，最大限度的抑制接收机的噪声，并采用Y型光纤分路器，以降低光路的前端反射，来提高接收机的信噪比，使光波参数综合测试仪获得大的动态范围。
The traditional power meter calibrating system usually has the shortcomings of low efficiency and large volume due to its standard voltage and current source rely on the analog amplifier.
传统的电力校表台由模拟功放向待校电表及标准表提供校表电流，造成系统效率低、体积大、重量重。