机电一体化专业英语
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第1部分材料和热处理第1单元金属附1: Exercise参考答案Exercise I1.F2. T3. T4. T5.FExercise II1. ferrous metals2.铜基合金3. nonferrous alloys4.自硬钢(风钢)5. plain carbon steels6.零点几7. stainless steels8.修(理)模(具)9. high-speed steel10.布氏硬度Exercise III1. stronger2. strong3. an alloy of iron and carbon4. lighter5. betterExercise IV1. which is also known as machine steel2. Some alloying elements cause steel to resist corrosion3. The largest parts of the blast furnace4. the limitations become restrictive5. the high fatigue and toughness of the low-carbon material being in good compromise with the strength and hardness that comes with higher carbon content附2:课文参考译文众所周知黑色金属是铁和碳的合金,这类合金还可能含有一些其它元素,如Si、P等等,但黑色金属所存在的各种元素中,要数碳最为重要。
在工业上应用的黑色金属有两大类:铸铁和钢。
这两类黑色金属通常由生铁炼得,但它们的含碳量不一样。
钢是含碳量为0.0218%至2.11%的铁碳合金;而铸铁是含碳量超过2.11%的铁碳合金。
工业上不用纯铁,因为它太软。
钢是一种包含铁和碳且添加了其他元素来得到更优性能的合金。
科目:机电一体化专业英语使用班级:使用班级:单选题单选题1 、10xx means that it is a plain carbon steel 1,10XX意味着它是一个普通的碳素钢 C the second digit indicates that there is no modification in the alloys. 第二个数字表明,有没有修改的合金。
A 、which A,这B 、when B,当C 、where C,其中D 、that ,,2 、These steels 2,这些钢材 B high strength and also high strength to weight ratio, good c orrosion resistance. 高强度和高强度重量比,好的C orrosion电阻。
A 、exhibits 一,展品B 、exhibit ,表现出C 、exhibited C,展出D 、are exhibiting D ,展示3 、This property, also called 3,此属性,也被称为C , is related to the resistance of the steel to the softening effect of heat. ,是有关钢材的耐热软化效应。
A 、cold-hardness 一,冷硬度B 、cold-shortness B,冷,气短C 、hot-hardness 热硬度,D 、brittle condition D ,脆条件4 、These metals 4,这些金属 A in a soft condition, heat-treated to gain hardness, and then finish machined with a grinding or lapping process that can handle the hardness. 在软条件下,热后获得的硬度,然后完成加工与磨削或研磨的过程中,可以处理的硬度。
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挡板stop plate定位圈locating ring顶针板ejector retainner plate 顶板eracuretun弹弓柱spring rodE二板模2-plate moldF发热管cartridge heater分流锥spure sperader复位键、提前回杆early return barG隔片buffle管钉dowel pinH活动臂lever arm喉塞line lpug喉管tube换模系统mold changing systemsJ激光切割laser cutting激光雕刻机engraving machines,laser激光钢板切割机laser cutting for SMT stensil 集合管manifolds唧嘴sprue bushing夹盘chucks夹具fixture剪切机shearing machines矫直机straightening machines金属板成型机sheet metal forming machines 金属板加工机sheet metal working machines锯片blades,saw锯床sawing machines卷边工具crimping toolsK卡口bayonet开模槽ply bar scot扣机(尼龙拉勾)nylon latch lockL垃圾钉stop pin流道平衡runner balance螺丝screwM毛坯 rough模芯mold core模具mold模具维修mold repair模具打磨/磨纹mold polishing/texturing 模具单元mold & die components 模具加热器/冷却器mold heaters/chillers 模胚(架)mold base磨轮grinding wheels磨削工具grinding tools磨床grinding machines磨床工作台grinder bench密封/封料sealN耐磨板/油板wedge wear plate内圆磨削 internal grindingP平面磨削 plane grindingQ气阀valvesR热流道hot runner,hot manifold 热嘴冷流道hot sprue/cold runner S三板模3-plate mold上内模cavity insert水口形式gate type水口大小gate size水口司bush司筒ejector sleeve司筒针ejector pin锁扣latch锁模块lock plate塑胶管plastic tube数模 digital analogyT探针thermocouples推板stripper plate托板support plateW外圆磨削external grindingX下内模core insert镶件insert斜导边angle pin斜顶lifterY压条plateZ中托司shoulder guide bushing 中托边guide pin注油机lubricators自动压力机presses,transfer自动车床lathes,automatic钻石刀具diamond cutters钻头drills钻模jigs钻床drilling machines钻床工作台drilling machines bench转台rotary tables6.制冷专业B冰箱用温度控制器thermostat for refrigeratorC程序指令式能量调节系统capacity regulation system of program order D单向阀check valve导阀pilot valve低压控制器low pressure controller低压浮球阀low pressure float valve单机能量调节capacity regulation of single unit电磁阀solenoid valve电动吸气阀electro inlet valveF分解decomposition浮球调节阀float regulation valve浮球阀float valveG高压控制器high pressure controller高压浮球阀high pressure float valve隔膜阀diaphragm valve工业制冷装置industrial refrigerating plant过热温度调节superheat temperature regulation H恒压膨胀阀constant pressure expansion valve J减压阀pressure-reducing valve截止阀shut-off valve节流阀throttle valve交*充注cross chargeK库温调节storage room tempurature regulation L冷凝压力调节器condensing pressure regulator 冷藏链cold chain冷藏refrigerated prvservation能量增强剂energy booster流量调节flow regualation流体流动指示器liquid indicator浓溶液rich solution,concentrated solutionN内平衡热力膨胀阀internal equalizer thermostaice expansion valve 内平衡管internal equalizer pipe能量调节capacity regulatorP旁通型能量调节器bypass capacity regulator膨胀阀expansion valve膨胀阀过热度superheat degree of expansion valve膨胀阀容量expansion valve capacityQ气体充注gas chargeR热力膨胀阀thermostatic expansion valve热源调节法energy source control method热电膨胀阀thermal electric expansion valve热平衡heat balance溶液流量调节solution flow regulation溶液solution溶解度solubility溶剂solvent溶质soluteS三通电磁阀three way magnetic valve三通调节阀three way control valve商业制冷装置commercial refrigerating plant释压装置pressure relief device湿度调节器humidity controller水量调节阀water regulation valve水解hydrolysis手动膨胀阀hand expansion valveT调节风门control damper同工质充注same material chargeW外平衡热力膨胀阀external equalizer thermostaice expansion valve 外平衡管external equalizer pipe温度式水量调节阀temperature-controlled water valveX吸收absorption吸附adsorption吸收剂absorbent,absorbing agent吸附剂adsorbent吸收式制冷absorption refrigeration吸附式制冷adsorption refrigeration吸附充注absorptive charge稀溶液weak solution,diluted solution限压装置pressure-limiting deviceY压力式水量调节阀pressure-controlled water valve压力控制器pressure controller压差控制器differential pressure controller易熔塞fusible plugZ制冷refrigeration制冷回路refrigerating circuit制冷剂控制器refrigerant control制冷装置refrigerating installation,refrigerating plant 制冷机refrigerating machine制冷机械refrigerating machinery制冷工程refrigeration engineering制冷工程承包商refrigeration contractor制冷工作者refrigerationist制冷工程师refrigeration engineer制冷技术员refrigeration technician制冷技师refrigeration technician制冷技工refrigeration mechanic制冷安装技工refrigeration installation mechanic制冷维修技工refrigeration serviceman制冷与空调维修店refrigeration and air conditioning repair shop 主阀main valve自动膨胀阀automatic expansion valve。
机电一体化专业英语试题及答案Test OnePart I Choose the best symbol (16%)Directions:The following is a set of symbols denoting Working Safety. Choose the best symbol according to the information given below.Worker ID Card Face Shield Ear Protection Ear Plug & GoggleWelding Mask Safety Helmet Eye Protection High Visibility Jacket1. 2. 3. 4.5. 6. 7. 8.Part II Translate Phrases into Chinese or English (20 %) Directions: This part is to test your ability to translate the following phrases into Chinese or English.1. corrosion resistance ___________________2. 中碳钢_____________________3. lead screws __________________________4. 耐磨性___________________5. electrical conductivity ________________6. 铝合金___________________7. die-casting__________________________8. 印刷电路板________________ 9. axis of rotation_________________________ 10. 精加工___________________Part III Matching (16%)Directions: This part is to test your ability to choose the interpretations given in Column C match the Functions given in Column A, and then put thefunctions into Chinese in Column B.A. Vee BlockB. Tool Maker ClampC. Surface PlateD. Bench ViceE. Angle PlateF. Hand ViceG. Vice ClampH. Pipe Vice1.(平板)2.(角板)3.(V型块三角槽铁)4.(手钳)5.(老虎钳)6.(管子台虎钳)7.(虎钳夹)8.(工件夹钳)Part IV Translate English into Chinese (28%)Directions: This part is to test your ability to translate English into Chinese.There are many kinds of machining operations, each of which is capable of generating a certain part geometry and surface texture.In turning, a cutting tool with a single cutting edge is used to remove material from a rotating work-piece to generate a cylindrical shape. The speed motion in turning is provided by the rotating work-part, and the feed motion is achieved by the cutting tool moving slowly in a direction parallel to the axis of rotation of the work-piece.Drilling is used to create a round hole. It is accomplished by a rotating tool that typically has two cutting edges. The tool is fed in a direction parallel to its axis of rotation into the work-part to form the round hole.In boring, the tool is used to enlarge an already available hole. It is a fine finishing operation used in the final stages of product manufacture.In milling, a rotating tool with multiple cutting edges is moved slowly relative to the material to generate a plane or straight surface. The direction of the feed motion is perpendicular to the tool’s axis of rotation. The speed motion is provided by the rotating milling cutter.Part V Translate Chinese into English (20 %) Directions: This part is to test your ability to do practical writing.1. 这些机器都是由中国人造出的。
机电一体化专业英语English Answer:Mechatronics is an interdisciplinary field that combines mechanical, electrical, computer, and software engineering to design, build, and operate systems. It has become increasingly important in modern engineering due to the growing demand for automated and intelligent systems.中文回答:机电一体化是一门综合了机械、电气、计算机和软件工程的交叉学科,用于设计、建造和操作系统。
随着对自动化和智能系统需求的不断增长,它在现代工程中变得越来越重要。
Components of Mechatronics.The core components of mechatronics include:Sensors: Collect data from the physical world.Actuators: Convert electrical signals into physical movement.Controllers: Process sensor data and generate control signals.Software: Designs and implements control algorithms.Applications of Mechatronics.Mechatronics has a wide range of applications, including:Industrial automation: Assembly lines, robotic welding, and automated material handling.Automotive systems: Engine control, brake systems, and advanced driver assistance systems.Aerospace engineering: Flight control systems, navigation systems, and life support systems.Medical engineering: Surgical robots, diagnostic instruments, and prosthetics.Benefits of Mechatronics.Mechatronics offers several benefits over traditional engineering approaches:Increased productivity: Automated systems can work faster and more accurately than humans.Improved quality: Automated systems can produce products with consistent quality.Reduced costs: Automated systems can eliminate the need for manual labor and reduce maintenance costs.Enhanced flexibility: Mechatronic systems can be easily reconfigured to adapt to changing requirements.Challenges in Mechatronics.Despite its advantages, mechatronics also faces some challenges:Complexity: Mechatronic systems can be highly complex, making design and implementation difficult.Cross-disciplinary nature: Mechatronics engineers must have knowledge in multiple engineering disciplines.Integration: Integrating different components from different disciplines can be challenging.Career Prospects in Mechatronics.The demand for mechatronics engineers is expected to continue to grow in the coming years. Mechatronics engineers can work in a variety of industries, including automotive, manufacturing, aerospace, and medical engineering.中文回答:机电一体化的组成部分。
《机电一体化专业英语》(English for Mechatronics)授课教案Teaching PlanMajor (专业):机电一体化XXXX专业(相关专业)Lecturer(任课教师):__________________________Mechatronics SectionChangchun Automobile Industry Institute《机电一体化专业英语》授课计划_ _______ 学院___ 专业班20 -20 学年第学期授课时间:第周ensure that…又引导出一个状语从句。
全句可译为:在把花盘安装在主轴上后, 常规作法是对断面进行一次性地轻切削以确保花盘表面与车床主轴垂直。
Period1The following is the machine tool structures.Explanations of the Machine Tool TermsNo.NameExplanation1 Spindle speed selector 主轴速度转换开关2 Headstock assembly 主轴箱3 Spindle with chuck 附有夹具主轴 4Tool post 刀架 5 pound rest 复式刀架 6 Cross slide 横向拖板 7 Carriage 滑鞍,滑座 8 Ways 导轨 9 Dead center 死顶尖 10 Tailstock quill 尾架顶尖套筒 11 Tailstock assembly 尾架 12 Hand-wheel 手轮 13 Bed 底座,床身 14 Lead screw 丝杠 15 Feed rod 进刀杠,光杠 16 Clutch离合器17 Longitudinal & transverse feed control 纵向与横向进给控制 18 Split-nut control 开合螺母控制 19 Apron 溜板箱,进给箱 20 Chip pan 承屑盘 21Feed selector进给选择开关机床构造 Section II Glance at Machine Tool StructuresThe following is the conventional machine tool. You are required to choose the suitable words or phrases given below.7. Body G. 公英制转换键8. Calibration sticker H. 液晶显示屏9. Depth bar I. 外径测量面10. Zero-setting key J. 滑尺11. On/Off key K. 电池盖12. Slider L. 清零键13. Outside measuring face M. 测深杆Period 1Practice扩大您地视野(实践部分)Section IV BroadenYour Horizon—Practical Activity(Practice) The micrometer screw gaugeThe micrometer screw gauge is used to measure even smaller dimensions than the vernier caliper. The micrometer screw gauge also uses an auxiliary scale (measuring hundredths of a millimeter) which is marked on a rotary thimble. Basically it is a screw with an accurately constant pitch. The micrometers in our laboratory have a pitch of 0.50 mm. The rotating thimble is subdivided into 50 equal divisions. The thimble passes through a frame that carries a millimetre scale graduated to 0.5 mm. The jaws can be adjusted by rotating the thimble using the small ratchet knob. The thimble must be rotated through two revolutions to open the jaws by 1 mm. Here is a useful applet to learn how to use the micrometer screw gauge (Figure 1-19).Figure 1-19 The micrometer screw gaugeIn order to measure an object, the object is placed between the jaws and the thimble is rotated using the ratchet until the object is secured. Note that the ratchet knob must be used to secure the object firmly between the jaws, otherwise the instrument could be damaged or give an inconsistent reading.Note that an additional half scale division (0.5 mm) must be included if the mark below the main scale is visible between the thimble and the main scale division on the sleeve. The remaining two significant figures (hundredths of a millimeter) are taken directly from the thimble opposite the main scale.In Figure 1-20 the last graduation visible to the left of the thimble is 7 mm and the thimble lines up with the main scale at 38 hundredths of a millimeter (0.38 mm); therefore the reading is 7.38 mm.In Figure 1-21 the last graduation visible to the left of the thimble is 7.5 mm; therefore the reading is 7.5 mm plus the thimble reading of 0.22 mm, giving 7.72 mm.Figure 1-20 The reading is 7.38mm Figure 1-21 The reading is 7.27mm In Figure 1-22 the main scale reading is 3 mm while the reading on the drum is 0.46 mm; therefore, the reading is 3.46 mm.In Figure 1-23 the 0.5 mm division is visible below the main scale; therefore the reading is 3.5 mm + 0.06 mm = 3.56 mm.Figure 1-22 The reading is 3.46mm Figure 1-23 The reading is 3.56mm Try the following bg yourselfFigure 1-24 Figure 1-25 Figure 1-26A: Do exercise 1, 2, 3, 4 and 7.AssignmentB: Ask students to collect some external machine tools.《机电一体化专业英语》授课计划_ _______ 学院___ 专业班20 -20 学年第学期授课时间:第周Key Points unit.2. Machine tool practice cognition.教学难点Difficult Points 1. Understand the key words, phrases and sentences in the passage.2. Translate the simple material or specification.教学方法Teaching Methods • Explanation • Group discussion • Questions and answers • Performance (Role-play) • Machine tool specification教学手段TeachingMeans• Multi-media • Videos • work Resource教学安排Teaching Arrangement教学内容Contents of Course学时Period精读Section I Technical and Practical Reading2机床构造Section II Glance at the Structure of the Machine Tool1试试身手(实践部分)Section III Simulated Writing (Practice)2扩大您地视野(实践部分)Section IV Broaden Your Horizon—Practical Activity (Practice)1授课内容与要点Teaching Contents and Main PointsUnit 2 Metal MaterialsPeriod2精读Section I Technical and Practical Reading Part I. Leading in1. RevisionAsk several students if they know the machine tool structures, metal materials and important machine tool manufacturers.Arouse students to answer teacher’s questions according to the Passage A /B for introduction to meta materials in Unit 2.2. Warming up questions1) Ask students to work in groups of four to read new words and phrases.5. ________(工具铣床)6. ________ (单柱铣床)Single-column Milling Machine Plano-milling MachineTool Milling MachineKnee-and-Column Milling Instrument milling machine Single-arm Milling MachinePeriod2Have a TrySample 1Explanations of TermsNameExplanationOuter frame 外框 Scale mark plate刻度盘 Spring 弹簧 Arm测量臂 Gauge head 侧头 Dial window 刻度盘 Indicator 指针 Clamp screw夹紧螺丝Choose the best answer.试试身手 (实践部分) Section III Simulated Writing (Practice)AB1. Dial windowA. 限制器 2. Long handB. 短指针 3. Top pointC. 刻度盘 4. LimiterD. 刻度盘 5. ClumpE. 长指针 6. Outer frameF. 底座 7. Short handG. 顶针8. BaseH. 螺丝紧固座 9. Scale mark plate I. 紧固件 10. Screw fastening base J. 测头 11.Gauge headK. 外框Period1Practice扩大您地视野 (实践部分)Section IV BroadenFacing OperationsFacing is the process of removing metal from the end of a work-piece to produce a flat surface.Preparing for the Facing CutYour Horizon—Practical Activity (Practice) First, make sure the tumbler gear lever on the back of the headstock is in the neutral (middle) position so that the lead-screw does not rotate.Clamp the work-piece tightly in the three-jaw chuck. To get the work properly centered, close the jaws until they just touch the surface of the work, then rotate the work-piece by hand in the jaws to seat it; then tighten the jaws (Figure 2-17). Beginning the Facing CutUse the pound handwheel to advance the tip of the tool until it just touches the end of the work-piece. Use the cross feed crank to back off the tool until it is beyond the diameter of the work-piece. Turn the lathe on and adjust the speed to a few hundred RPM — setting of the speed control knob. Now slowly advance the cross feed hand-wheel to move the tool towards the work-piece. When the tool touches the work-piece it should start to remove metal from the end (Figure 2-18). Continue advancing the tool until it reaches the center of the work-piece and then crank the tool back in the opposite direction (towards you) until it is back past the edge of the work-piece (Figure 2-19).Figure 2-18 Figure 2-19 Since we started with the tool just touching the end of the work-piece, you probably removed very little metal on this pass. This is a good idea until you get used to how aggressively you can remove metal without stalling the lathe.The Roughing CutUse the pound crank to advance the tool towards the chuck about 0.010". If the pound is set at a 90 degrees to the cross slide (which is how I usually set mine) then each division you turn the crank will advance the tool 0.001 (one-thousandth of an inch) toward the chuck.If the pound is set at some other angle, say 30 degrees, to the cross slide, then it will advance the tool less than 0.001 for each division. The exact amount is determined by the trigonometric sine of the angle. Here’s a picture of the first pass of a facing operation (Figure 2-20).Cutting on the Return PassIf you crank the tool back towards you after it reaches the center of the work-piece you will notice that it removes a small amount of metal on the return pass. This is because the surface is not perfectly smooth and it is removing metal from the high spots. If you need to remove a lot of metal, to reduce the work-piece to a specific length, for example, you can take advantage of this return cut to remove more metal on each pass by advancing the tool a small ways into the work-piece on the return pass. Since the tool must plunge into the face of the work-piece, this works best with a fairly sharp pointed tool.The Finishing CutDepending on how rough the end of the work-piece was to begin with and how large the diameter is, you may need to make three or more passes to get a nice smooth finish across the face. These initial passes are called roughing passes and remove a relatively large amount of metal.When you get the face pretty smooth you can make a final finishing cut to remove just 0.001 to 0.003" of metal and get a nice smooth surface. Figure 2-21 shows removingabout 0.002" of metal at around 1 000 RPM. Figure 2-22 shows the finished face of thework-piece. Figure 2-21 Figure 2-22Figure 2-23 shows what happens if the tip of your cutting tool is below the center line of the lathe — a little nub is left at the center of the work-piece. The same thing happens ifthe tool is too high but the nub will have more of a cone shape in that case. If the tool is toolow, place a suitable thickness of shim stock underneath the tool in the tool holder. If it’s toohigh, grind the top down a few thous.Filing the EdgeFacing operations leave a rather sharp edge on the end of the work-piece. It’s a good idea to smooth this edge down with a file to give it a nice chamfer and to avoid cuttingyourself on it. With the lathe running at fairly low speed, bring a smooth cut file up to theend of the work-piece at a 45 degree angle and apply a little pressure to the file. Figure2-24: Right — left hand holding tang end of file. Figure 2-25: Wrong — left hand reachingover spinning chuck!Figure 2-23 Figure 2-24Figure 2-26 shows the finished surface and beveled edge. This is what a good facing cut should look like: smooth even surface with no raised bump in the center. Lay anaccurate straight edge across the surface of the face and you should not be able to seeany light under the edge. If you detect a slight convex shape, the carriage may be movingback away from the headstock during the cut.Figure 2-25 Figure 2-26A: Do exercise 1, 2, 3, 4 and 7.AssignmentB: Ask students to collect some external machine tools.《机电一体化专业英语》授课计划_ _______ 学院___ 专业班20 -20 学年第学期授课时间:第周教学难点Difficult Points 1. Understand the key words, phrases and sentences in the passage.2. Translate the simple material or specification.教学方法Teaching Methods • Explanation • Group discussion • Questions and answers • Performance (Role-play) • Machine tool specification教学手段TeachingMeans• Multi-media • Videos • work Resource教学安排Teaching Arrangement教学内容Contents of Course学时Period精读Section I Technical and Practical Reading2机床构造Section II Glance at the Machine Tool Structures1试试身手(实践部分)Section III Simulated Writing (Practice)2听说练习(实践部分)Section IV Broaden Your Horizon—Practical Activity (Practice)1授课内容与要点Teaching Contents and Main PointsUnit 3 Machining OperationsPeriod2精读Section I Technical and Practical Reading Part I. Leading in1. RevisionAsk several students if they know the basic machine tool and its function.Arouse students to answer teacher’s questions according to the Passage A /B for introduction to basic machine tools in Unit 3.2. Warming up questions1) Ask students to work in groups of four to read new words and phrases.2) Talk about the basic boring machines.Part II. prehension and PracticingSentences:1. Conventional machining, one of the most important material removal methods, is a collection of material-working processes in which power-driven machine tools, such as lathes, milling machines, and drill presses are used with a sharp cutting tool to mechanically cut the material to achieve the desired geometry. 在这个长句中,主语是Conventional machining,由is引导出合成谓语;one of the most…methods是插入语;in which 引导定语从句,其先行词为processes。
Mechatronic1. IntroductionMechatronics is a design process that includes a combination of mechanical engineering, electronic engineering, material engineering, chemical engineering and industrial engineering. Mechatronics is a multidisciplinary field of engineering, that is to say, it rejects splitting engineering into separate disciplines.Nowadays, with the increasing of economy, Interdisciplinary research becomes an irreversible tendency. Which means mechatronic is facing unprecedented challenges. The old mechanics cannot catch the pace of new world, so they need to be changed. In order to stand steady from the competition, they must provide high value by being innovative during the process of transformation and upgrading.2. Mechatronic system applicationMechatronics are useful on so many fields, such as Machine vision, Automation and robotics, Servo-mechanics and so on.Mechatronic system apply to Machine vision (MV)Mechatronic make the possibilities of MV, technology and methods used to provide imaging-based automatic inspection and analysis for such applications as automatic inspection, process control, and robot guidance in industry, came true.Mechatronic system apply to Automation and roboticsImagine that just push some simple bottoms lightly can you control a huge, smart, intelligent robots. Is it only dreamed? No, it is reality. When mechatronic system applies to automation and robotics we can meet that easily.Mechatronic system apply to Servo-mechanicsCommon type of servo provides position control. Servos are commonly electrical or partially electronic in nature, using an electric motor as the primary means of creating mechanical force. Other types of servos use hydraulics, pneumatics, or magnetic principles. Whatever type it is, it can be separate as feedback system, transducer system and control system. And all of it cannot be kept in functional order without mechatronic system engineering.3. Future challengesMechatronic products -- products that blend mechanical, electrical and software technologies -- have exploded far beyond such industries as high-tech, aerospace and consumer product goods. That means more and more product development teams that once may have been comprised of mechanical engineers and electrical engineers are now adding software to the mix.Multiple engineering disciplines are being challenged to work together in mechatronic product development, such as on this printed circuit board assembly created in PTC's Pro/Engineer.Additional challenges of mechatronic product development noted by PTC include MCAD changes not reaching electrical engineers quickly enough, ECAD designers working ahead of the mechanical engineer and failing to relay that information, and software development largely removed from the product development change management process.。