同时介绍了变频机故障检测仪的硬件、软件实现及实际应用。
Furthermore, the hardware and software implementation as well as the practical application of frequency converter fault detector were introduced also.
马达启动用正温度系数热敏电阻器，只要用于电冰箱、空调马达启动、空调变频机启动、马达过热保护等。
Motor-starting PTC Thermistors are mainly used in fridge and air-conditioner motor-starting, air-conditioner transducer-starting, motor over-heating protection.
本机可控制六台变频机，且具有同步调速功能。 本机可实现匀速运行，分段运行和两段随机运行三种方式。
The machine can run at three speed modes, that is, uniform velocity, sectional running and two-section random running.
◎高精度变频机DIA /FIA30、DIA/FIA40系统结构设计的改良，产品通过认证，并已经批量生产。
High Frequency Machine DIA / FIA30, DIA/FIA40 system architecture design of improved products through certification, and in production.
介绍了变频器在加压过滤机、洗煤机、给料机中的应用。
This paper describes the application of frequency changer in filter, coal washer and GZG Feeder.
混频器的变频损耗和噪声温度的测量可以用改变中频部分的噪声温度使接收机的系统噪声温度变化来加以确定。
The conversion loss and noise temperature of mixers is determined by changing the IF noise temperature so as to change the noise temperature of the receiver system.
当变频器及PLC发生故障时，自动切换到原软启动柜工频电源运行，以保证压缩机的正常工作。
When frequency converter and PLC is at fault, automatic switch to the original soft start work frequency power operation, ark to ensure the normal work of the compressor.
论文在最后给出了在处理机实验平台上进行的数字上下变频系统的实验结果。
The last part gives the test results of digital up convert and digital down convert system, produced by the experimental platform.
目前光伏水泵的推广面临两个方面的障碍，一方面是应用较多的专用型光伏机泵成本较高；另一方面利用通用变频器驱动通用机泵时光伏利用率低。
The special inverter and pump for photovoltaic water pump is expensive and making using of general inverter to drive general water pump can not tracks point of maximal power.
全机采用不锈钢或碳钢材料制作，采用变频器控制速度，适用于食品、副产品行业的加工生产线、包装输送线。
The whole machine production of stainless steel or carbon steel materials, the use of inverter control speed, apply to food, by-product processing industry production lines, packaging conveyor lines.
因此，对往复式压缩机系统进行变频技术改造还是比较有意义。
Therefore, the reciprocating compressors system frequency conversion technology reform still have meaning.
数字下变频技术是数字化雷达接收机的关键技术之一。
Digital down - conversion (DDC) is an important technique of digitized radar receiver.
充分吸收了近年来国内国外变频调速方面的先进技术，特别适用于起重机高起动转矩和频繁起动的要求。
Absorbed the best of both domestic and abroad advanced techniques, the motors are especially suitable for high starting torque and frequent starting of crane.
空气压缩机恒压供气智能控制系统是由变频器、压力传感器、可编程控制器(PLC)控制单元、软件控制单元等组成。
Air compressor constant pressure gas supply intelligence control system is by the transducer, pressure sensor, programmable controller (PLC) control unit, software control unit etc.
文章设计出的八级拉丝机交流变频调速系统的控制方案，解决了稳态精度的问题，提高了经济效益。
In the paper, the control scheme of eight-level drawbench frequency conversion timing system solves the stability precision and improves the economic benefit.
介绍了伦茨变频器通过LECOM协议与上位机通信的方法。给出了LECOM通信的硬件构成、通信协议以及程序设计方法。
A method of LECOM communication of LENZE inverter to the host is described, and the hardware composition, communication protocol and programming design method are also presented.
研究了一体化二次变频收发信机中各种组合频率干扰的产生原因：主要是由于混频器和放大器的非线性。
This paper investigates various combined frequency interference in integrated and double-converted transceivers, and points out that the reason is the non-linearity of frequency mixer and amplifier.
介绍了基于变频技术的离心浇铸机控制系统的硬件系统构成和主要功能，给出了系统监控画面设计。
The hardware system structure and main functions of monitoring system of centrifugal casting machines based on inverter technology were introduced.
文章介绍了AT 90s1200单片机在单相桥式变频器系统中的硬件和软件设计。
This paper introduces application of monolithic computer AT90S1200 to single-phase bridge-type frequency converter PWM.
新型下料机是利用变频振动实现低应力精密下料的。
New type of precision cropping machine utilizes variant frequency vibration to crop bar precisely with low stress.
本文介绍了交流变频技术在新型纺织设备及老机改造中的应用、交流变频技术应用的必要性、可行性及性价比分析。
This article introduced the application of frequency converters on the novel cotton spinning machines. The necessity, feasibility and cost-performance were analyzed.
变频器。减速机的研究和生产。
本文主要介绍了变频器在国产单双色单张纸平版印刷机改造中的应用，以及对变频器的一些功能的要求。
The paper introduces the application of inverter in the reform of homemade single - double-color singleton paper lithography machine, followed with some functional demands for inverter.
分析了基于多相滤波结构的宽带侦察接收机中频数字信号下变频处理方法。
This paper analyzes the digital down conversion (DDC) of wideband reconnaissance receiver IF digital signal based on polyphase filtering.
在对电子膨胀阀的特性及制冷系统的运行规律的认真分析基础之上，设计了变频压缩机的精准在线控制。
Basing on analyzing the characteristic of EEV and running rule of refrigerating system in detail, it designs precise online control of inverter compressor.
在图形法拟合的基础上，借鉴成熟的对实际过热度进行修正的方法，建立了变频空调器压缩机模型。
With a widely used method for actual superheat temperature correction, the inverter air-conditioner compressor model is built up on the basis of performance curves fitting.
在图形法拟合的基础上，借鉴成熟的对实际过热度进行修正的方法，建立了变频空调器压缩机模型。
With a widely used method for actual superheat temperature correction, the inverter air-conditioner compressor model is built up on the basis of performance curves fitting.
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