《工程測試技術》課程設計_基于單片機的LVDT位移測量傳感器設計說明書

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1、not apig. With domestic i nternati bigenvir Currently,col d meat,more and morevarietie s (cities),55,Si chua n, Cheng du has 7 nifoicfana8re0re%anlneitonlrfygAiiynmcparsnoidvaLeeisE,ncDmtelnaigtkhetshietfuntgur[e2b,]y.hLiw onment ofcha nges,a s Chi natraditi onalindustry ofpig n pengzhou).Inte

2、rnatpiork meat pornalpoigdiucntsd,uswtry mahiinclhy ianccclouudnette sof meatand he Eur opea eur opea d for a large proporti producti on wayand profit way are requirements r 一 . - — 一 1 1 nd Cana da, a nd Brazil a nd 一 -I .1_1 - urces i ntegration,to qualityse on of pork consumpti o

3、n, st ores, chai n stores,supermarkets and ot scale ofanimalhusbandry industrya I — — — — —. ― — . .. . I her marketing methods i sont curity for premi se,regul ation base .I. . I. .1 . . I —— — — — — — ndte chnol oped countries. .I — , L - s been extended to m dMfaarrkmetin1,g,thae

4、nd mandaogemesti mentcost a ndthe pr oduction,a I 一 一 market from China'smeat n RADIUS.Cheng du is a consum ulative average reached 100 million Yua standardizati ce market, the nd scale ,and intensive,a — - - — - I n 3 butscored nomor ethan 5minute use hasvario us hig h performa

5、ncequality ofcircuit makes LED... by thebid amlegaloruenptrsecosreedntativeuap notonvdetr he6tepnodierntas.ge Innatdadpitpilicaotni, coomnptleteosmaeetthebrid w eqourirth meomreetnts;h(2a)nli 500 cmeilnlicea onnyd auabnididinntgotal 1amgient qunaluitfeic,atbiutotonhsermieteetmtshescroreacceuqmuiur

6、leamteed nts; (3) thewinninsgimaimlaorupnrt oje uctptteonademrianxgimaguem er ofagent s similar pr oje cts:pr oxybid am ount(sinceJa nuary1,2007w inning noticef orexampl e) in themore t han 50million Yua n water conservancy pr oject period of3 minutes,but scores t pcyoinagts. (2)enctalncuulmabtieo

7、rnarulefonrdt provi de proof ohfemnautmerbiaelr he numberofage nts similar proje cts up to a poi nts) 1,to the construction pr oject serving personnel,4years experiencei a traditionalhog production andconsumpti on country, 2008 46.15 milli ont nd marketroa d,fastupgrade whole i —-— I L.

8、 of the develo pment sit uation,the emergence of ne - ' — — I I.——— — — — — — city's commercial ratereaches a w trends int ulation capacity,m ——- -一.一 arket competition - --- 一 ―一 ―— - bove 60% oflivepigs, pork a nd raw materials primary processing pr pork a nd its products.Docki -—- -

9、 -一- oductsi capacityand anti -riskcapa .— ——I oduction and sal nationalreputation i e s ,hiignchldo.usWsetleryys.taerThneanlyhsiosng(gtatr)zaetdhiRenigve basic situati on i n China is 9.6 milli on. Nationalpig i Chengdu and provi bias.Se cond,t he rigid dome ndptohweerdecvoelnsuomppmtie

10、onnt, ltorengservnid [1]. Lacnedlsifcea,hipgelihgbrihgthintg, dneosnso,tlopwursuceatlhoeribrieg,green, ruhgtngeed,scsh,abnugtithe art ng, hoifgcreahti-vteecdheti p.Isingdnu,stryLiEnDthperciotyd,utcts shouhleudr bebaanlbleantodsficnad it cpoemligeshitni.ng brig hGtlnoewssadnoglenostmpaulrl nflammati

11、on, ulcers,prom otionofwound heali ng asw ellasfacial skin rejuvenati on, wrinkle, spot removal,treatment ofsores,a nd soon. Launche d LED me dicala pplicationsare nternationalmarketsatpresent,a on conti nue ofpork is mai ution-free Thewholenati health nd other countries a nd regi ons, aswell

12、a on advantageregi enntlythinefutcituyreniogfhtfalsighion ahting endntgriennedey.riInngaignrit heccuoltmumre,onusuallyofLED ligby uhsitnmgaainrtihfiacial lisg:linearhgtloswoulracmes arepfs,luaornesdcdeecoratnivtelalamwpnslawimt h hig ph,parnedsslaunredsscoadpielamum lampsp,. aInnrdeball design is

13、 very im portant, no driveLE Dyou'llnever betoo light.Ea ch ma nufact urers bywit h LE Dare is as of,different of at is drive circuit ofdifferent,good .一 ?.一.. 一.一 on tonnes were imported. opme nt, ong, play yu na n pro- de Prooy - p'at on.al be bound, ad ppge by ppge Loddd i I he or de. 5t

14、 hC-te -pliai on frm- nots： bidig agent - 2 目錄 第一章總體方案設計 3 1.1 設計目的 4 1.2 總體方案設計 4 第二章硬件電路設計 5 2.1 傳感器的選擇 5 2.2 差動變壓器傳感器安裝 6 2.3 放大電路的設計 7 2.4 采集電路的設計 7 2.5 輸入通道設計 8 2.6 顯示電路的設計 9 第三章軟件的設計 10 3.1 數據處理子程序的設計 10 3.2 數據采集子程序的設計 10 3.3 數據顯示子程序的設計 11 3.4 地址空間的分配的設計

15、 11 第四章設計總結 12 參考文獻 13 附總電路圖 13 附總程序 13 4.1 applicati on of theChi nese lang uage applicati on for pr oxy bidding age ncy a pplication system.4.2biddingag ent applicati onsshoul d be submitted bytheAge ncy i ncl uded int he 5th chapter oftheconte nt,and tha nsele ctfile askedt o provi ust

16、not exceed 20%,ot herwisetheapplication cannot pa ss complia nce checks,beinvali dated.Due t o bidding age ncy ..I I .- —— ― ―― basefor aseparate computation -agent ned during chargi nt has cefee payment i not yet be en produce n accor dancewith t h,e Ge on shallaffixitsofficialsealco

17、ding a nd page by page i n the specifiedl ocati on.Age nt acopy ofthea pplication shallhaveto number thepages and sig nedoriginal copy(copy) (incl udi ng supporting docume nts),and ccording to the rates of pri ce, bid a ndthebidam ofth eState development and Reform Commissi ount determine s afte

18、rthe end,controll n onte nderi ng agent's servicecharge ofnotification ssue s (thechange copy shoul d beexa ctlythe same.4.4 a pplication there shall be no loosepages.4.5agent appli cation shoul d be compl etewith i ndeli ble i nk(pow dered) pri nts,theagentshallnot alter any page oftheapplicati

19、on.4.6 bidding age ncie soffer should beba sed ont he interim measuresforthe ma nagement oftendering ag ent's service charges (meter pri ces [2002]1980) rule softhe Ninet h,tenderage nt servi cecharges using thedifferenceprogre ssive billing rate. Char ges i n accor dance with t hetendering age nt's

20、se rvice chargesa nd,inconjunction with t heprovi sions ofthespecific circumstancesofthe proje ct n these lecte d person te nts goi ng to choose a nderi service charge controlthe upperand low be ba sed on the pri nci pleofpr ofit notfiles,m heState Development Pl herelevant provisi anning Co

21、mmissi on ofthe i nterim measure s servi ce charges (meter price on shall bepre pared i n the 5t 0) of tenderi ngagent's servicefees under 100% ,the lower limitfor theState Development Planning Commissi on ofthe interim measur esforthe manageme ntoftenderi ng agent' ication ofvarioussupporti ng

22、 docume ntsshould berequested by the selecti on offiles grouped byorder. Compari son a nd selecti on ofthe bi dding agencies must provi desupporting document srequired byt hefile;t cted under 80%. enderi ngagent's service charge base should i ncl udet hefollowing tenders:construction, does not ha

23、vethe re quire d supporting document edto provi de,or  Wlhdom - i nt. m.ke.nd onmet 0f ..... .sCi n. trdt -ay ad "? —" aer..- esr eatd idnst ? ? naa “Cegdahhs -.27 n pe-o" Iten-i -sty m-n" ini- I he Ear . ppa S - s. nd Ca. d-. nd Bal .bslu C...... Carety cl d me. -ete s

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29、 隨著時代科技的迅猛發(fā)展，微電子學和計算機等現代電子技術的成就給傳統的電子 測量與儀器帶來了巨大的沖擊和革命性的影響。常規(guī)的測試儀器儀表和控制裝置被更先 進的智能儀器所取代，使得傳統的電子測量儀器在遠離、功能、精度及自動化水平定方 面發(fā)生了巨大變化，并相應的出現了各種各樣的智能儀器控制系統，使得科學實驗和應 用工程的自動化程度得以顯著提高。 本文設計的電子秤以單片機為主要部件，用匯編語言進行軟件設計，硬件則以差動 變壓器式(LVDT)位移傳感器為主，測量0?10mm傳感器輸出的電量是模擬量，數值比較 小達不到A/D轉換接收的電壓范圍。所以送 A/D轉換之前要對其進行前端放大、整形濾 波等處理

30、。然后，A/D轉換的結果才能送單片機進行數據處理并顯示。 第一章總體方案設計 1.1設計目的 差動變壓器式(LVDT)位移傳感器廣泛應用于工業(yè)現場和測試領域，如過程檢測和自 動控制、形變測量等，適用于油污、光照等惡劣環(huán)境。這種傳感器可靠而耐用，但選用 它監(jiān)控機械位移量，還需設計與傳感器配套的測量裝置 研制開發(fā)的位移測量裝置適用于工業(yè)現場和多種測試領域。按照使用的要求，系統 可實現:有效量程10mm,精度0.0lmm; LED同時顯示1-4路測量值；零點值重置等功能。 通過本次課程設計，達到以下三點： (1) .通過本次課程設計加深對差動變壓 器電感傳感器在工程實踐中的應用的了解；

31、 (2) .掌握用這種傳感器組成位移測量系 統的原理和方法； (3) .進一步掌握這種傳感器的性能特點 和工程應用。 1.2總體方案設計 本系統采用內含4KB程序存儲器的8 位單片微型計算機89C51,其內部4KB程 序存貯器可以滿足本系統的需求，同時可以 圖1.2.1主程序流程圖 coins Soud be nbmitd by te - e I n" i n. uded i Ihe 5h Lh-er of Ihe cn.nI, . nd I I aleleL fe .se . -. doLome-in. 43 proxy -pliain sh. l .fx is ofii

32、. sal cd ng ad page by p-e i I h e .enlid l oca"n—..I. cpy of te . ppl cainshl h.

33、rats of pri ne, bid and te bid amouI d — rmins fe te e nd, cnIro- d e.onne r-Is na nu-e d shl pay .nde .e (ener agenny .e (ccu. for Ihe a I i... bd — ouI . . . b— fr . ...a. cmpuai. of e.d.i .. .get. 一■— fe. t. .d.i.g ...I. sevc. f- p.. .I i . c.d.ne -i h t. G ...l Ofi. of Ih. S tae ——pm. .I .d r..

34、.. ^jmmssi. o. I.^rig a. .I.-rvi — c... of .otfiai 0n ..t. .——i siu-.t. ch. ... pri - [II3I5-. Sae 0fpe nIem ng -gets sevne fes unde 10%,I of Iedei net, e nd. “I _rvi ceCages u.ng I nancrda pplL.on of - soud be s，= ?* of Iendei nce -ih Ihe Iendeig .et ng agents seve .一 o

35、de. Cm pais. -d ” .Lis mu. pr ovde Su ou..1. r.u.d byte let he f. you ... Lt. sseve Caggs ad i Lonu.Ci in -i ninum Stan. C uder 8%.T nne. ng agget. se-ne Cage ba m shoudi nC ng Ieders Lon.uCion, not ha- t h. -qu-d n.,bi ddn. ae.Ly.k no. , or 較大限度地減少外圍器件；按照有效量程和精度，本系

36、統選用國內廠家的配套產品 Fis cmplm n- rrvi— o|he a pplcminof Ie a ppras” Ccmmite, ony Il-h the cm plm- rrvi— o|he mplcm appl —in. 811 tende Iget isiuins smi a projec tende pelorma nce re queme nts (6 points tende Iget i I siuti — I — I smila projecs a > —....l s —I m i note —iar proec Ie-I wt h

37、dome s1c ite ? aiona m.rke .nd e I g .ec，seve .etdu.g -37 counte s (cites, II,Sc — ,"e s .... ..一 ，ule?，cl I g- hhs 7 in?dng i .■ — . .. . — —_ d mmI more ad more —ie — cnol ogy bg evi onmet of c. nges 一 pelorma — Tota 0 Pr oec Mange ae nc ude the Eul ccued for a lage pr nt perorm

38、ance ... up —ad LI. w81lt i sly tw pat cmpost of two pas (| acigl ke the acum eve — doos not mlet one of Ie foll o—ig cndtons plourrtla -ge nny I lubmi mpli cm in troug on (| .et smiar proe c of cum ulmie bi d - ount (corrd calulmion ruesfr —gent —me pr 一 — >> — ■ ■ -?— ——— ? — — — —

39、 ? 一 ?一 uaed — i nni ng amount cl cul.1 in ule Iget s for —Ie cnse'a cmplace reves, I e iv. da— (1 o—，id - ount (on Jauay , 20，hhs —■ l r — . . . . l ..Ll. . _ (1-ppF. Un unie d S.Is, ad Ca .. I.........I ... opoli I of pok cnnumpti on, s oris, chai s nnda a nd Ball and ot .- I . L — i

40、duty for resiuie ■ I I ■ — — ■ I I. s itgraton, i -am |e ■ - I. — —...L.i—— ■ bsol ue ica e of anm. husadry i_sy a .― .... ? u. fr pr——. e.ai .- I . . L . . . _ ... nd Ichnol. on the Is, a id lasort nny pr oje ctbd - out (inneja nuay 1,*l7 — i I ni ng noti ce frexmpe cm on b.sd amig . ..

41、.I _ ■ L _ — II. deveoppd cunt.s Make , the ——. — ... L . . . I . hhs bben exe I ded I mol I. I d m. nng- et cost .d t I e p|-cin, .d — .. _ ■ _ — I I ■ ■ IL . .. . .. I I 200 km in RIIS. Cheg s cot g — ult'e a — rgerraced 1H miin Yua ndad .ton. ad s — ..... L . . _— _ . on ha - a nd ecno

42、mc a e ad ine du s a n impora nt "Rve pg" rrsouce make, Ie cys ur ements of (el ectd ie s po—es of - Itle y —cmmins by the egml rere semie a nd the te—r ment .plcmi on to mee t he — uiementsj* lcece ad a bi rrmced 3 millin Yua nh — 2 s — mer proec — uh— bid _ounl scre d unot ove I points Ilddt

43、on, cmplets a bid — olh moe tm 50 milin yua i I I . I — .. ....II. I ■ I . . _ - — _ — — 一 ——— —— " n 3 but >c “rd no more th. n-is of the deveopmet sit cmmeca raerra nsve and maket roa_ f— upga-- ■ I — .■.I.. — L. n 5 minuls. 2) c — rin rue fr Ie num uuton, Ie emegece of ne — Ie — 一■ — ——

44、L ■ . . . L ■ chs a bo . . I ' nts (6 nofrud cm se 82 mpl cmion evi— i n demi the Evmumin Ccmmite thlug h cm piane evi— s — l be lee ctd fr de. 3 evi— of the ple c manage i n the s-e I roe c pefrma I

45、 c (10 s Poe cMange Ig ent pelorma nce (core s icudig Ige nts of the bi _i ng agencis LI. ...Lill I. . _ — — ... I - > _ _ I . I — I - L I - ■ I I I I L _ I . I J — ■ ■ _ ― . I.L L. . ■ IL _ nnmbe ad provi de proof of maea com". ance (4) Ie endeig -ge ns..) — — a.nru> fr Ie num be of .es Smga

46、 p.—ts proy bi ,一—-— — — — — — — — — — — — - — . . . L I . . L . . I . .. ncy ite n — "u, s pr oecle n — d amout(sn — Ja-y , 20r —nning notic 1 m orethan 50 miin、a sce has —iar pr olcs t he n - ber o? nd r — lenes to m

47、 as a d lie age n,“e pr o e c m a

48、pesn, is. Pr ojct "narer ddmonntatd I pi be of .es smila projcIs pl. bi oe cs u I a m-m — of 5 poi bu (corrs t I e numbe of Ige d amout — ne Jauay , 207 o.call eve and h.e pe r.nny proe c pel id on Yua wae cl >e nce i endeig a 2 yeas expHe I s ——r pr 3 miues nt _Tg s I c 1□J- mil on —d

49、 by the ed pg Huger I9I mil "in,. I , ne .y I% pe cet of .nn-l ou、* 3 d 62 mil — i hH-101ns of "eg ."in. s . Irdt on. hog pr o_ci on .nd cnsumpti n-ltys . nnu. prod - in v — e . .oud ” L. 一 — 一ch, ~ pig - 10-I mi>n, is I V - cappct y Fir1 id—ty .nayi .. ..— —.... , n provi nce i n ■□ p.

50、due I . . . I . . . . . I ― . 11ci y make compeii .—■ . I ■ _ F. 0n.. ntre regona pa on c.. cty and .ii hus. ndy.Sc — .LI.......I . ie provinca ———>>> on. Natona pg i ... I . - L . .- of e.ain — he make of dmesi nd raw m.Ieias p - .y prooessng pr c pok a nd is products Dck ng s a p

51、g pr ―— ——L.L .. 一, oducI in a nd s. Is moe c osey. T he agje Rve Dl. p ng pgpr -na oec oo o-cs i n Ie domesc a nd i nten.i I n. re pultons hgh. We slen hogtadng c suit I n i P m l Rive Dea and Ie cele i n Cheng- ad pr Bha Im ecnom c dve oped arm idus -l ..I......I.. ... — L L o

52、vdls dsa (efre aea s of consucton i r de I sluctue adusment galee > —. .. — .11. . 一 — .- Ie a — — aethe u—lpmet of s- d pa ce, — o or Irre i ne id — Iy rral nd — I— I t he Ce ntr. and Wsten bia. Se cnd, t he .u domlst c cns—ptin gl — zls space a nd cndii ons 2 the i nIennt on. mak— a prrs

53、et, anu. vlme h. Fr a long pel -■ L I- I - od, pork s s ■ Ie ages vaey of me. connumpin i Ci. Ihe a LI.— . L ■ .. .. . . . II ■ I 1 . I ... I f I— i- pig s ite — I rd yea ar ou nd 18 mil on, .out I mil ueof .nma I slue connumpI in cnti n— s to gro— Esecily i Ie v- ur. maretgl—I potetil lid

54、 make for pork an —— . ..... .... — — _ ?.. ?— the EU and Nrth -mecaim porig cutis m. ny i -s9 , 1apa, a nd Kla, a nd Si ngapoe, Ie - els Pol -i n Ie cu” Phii pi nes Hong Kn Ion fre pok -ley ad .I . . . . L - d ole The — oe n.I hhat hhs so— n a vey good maket plse .— .■ ■ ■ — > ■ ■ r. ■

55、 _ ■ l. . l 1 ■ S cutis a ndrrgions as — l a s IU— , abou 3 mil nni ng( 一， cs Fu s on Inne s —e I thee .e _— ake Ie d. It s prrdce d th. the — old mem cns—pti on inclmle of 1% i —sm i t I e fuue our cuty hhs I bv o — ge ogrmhiml a ?—、一，- pol potentil Wi h the a d — ccmet of — e pg s sueiiy

56、 i .d - y belt cnsuci on, anmm d sese - 《工程測試技術》課程設計 AC-LVDT傳感器;使用四組（每組5個）LED七段數碼管同時顯示四路測量值；用于過程控 制的信號采樣應較快，應采用較高速的 A/D轉換器。主程序流程圖、系統原理圖分別如 圖1.2.1、圖1.2.2所示。 \BBSSB\ 控制 A專換融 A/D轉換器 #4 傳球:牌 4選1模擬開關 舛部中斷L宣等、 ? - #2 As9c5i單月機 AC-LVOf 調 汩解調放人及 信號泌理也路 you c n provi de. Proxy ap.? on

57、sh. be bound, ad page by page coded it he or de. 5t hcaer aplcai on foma no- b—“ agent - 3 圖1.2.2系統原理 第二章硬件電路設計 2.1傳感器的工作原理 差動變壓器由一只初級線圈和二只次 線圈及一個鐵芯組成，根據內外層排列不 同，有二段式和三段式，本實驗采用三段式 結構。當差動變壓器隨著被測體移動時差動 變壓器的鐵芯也隨著軸向位移，從而使初級 線圈和次級線圈之間的互感發(fā)生變化促使 次級線圈感應電勢產生變化，一只次級感應 電勢增加，另一只感應電勢則減少，將兩只 圖2.1

58、測顯原理框圖 次級反向用接（同名端連接），就引出差動電勢輸出。 利用兩個線圈之間互感的變化引 起感應電勢的變化，來獲得與被測量成一定函數關系的輸出電壓，實現非電量的測量。 應用最多的是螺線管式差動變壓器，它可以測量 1?100（mm范圍內的機械位移、150Hz 以下的低頻振動、加速度、應變、比重、張力、厚度、稱重等一、切能引起機械位移變 化的非電物理量。 本次差動變壓器的原理是建立在 CSY2000a傳感器實訓臺的基礎上的。差動變壓器 電感傳感器具有結構簡單、性能優(yōu)越、測量精度高、靈敏度高和價格合理等優(yōu)點。 2.2 、差動變壓器傳感器安裝 221。 1 .將差

59、動變壓器和測微頭（參照附：測微頭使用）安裝在實驗模板的支架座上，如下圖 圖2.2.1差動變壓器傳感器安裝示意圖 yu - nprov Le Prxy ap.. on.. apis on.ma no-： ?一”.”. 2、差動變壓器的原理圖已印刷在實驗模板上， L1為初級線圈；L2、L3為次級線圈；*號為同 名端。按圖2-3接線，差動變壓器的原邊L 1的激勵電壓必須從主機箱中音頻振蕩器的 Lv端子引入， 檢查接線無誤后合上總電源開關，調節(jié)音頻振蕩器的頻率為 4-5KHz （可用主機箱的頻率表輸入 Fin 來監(jiān)測）；調節(jié)輸出幅度峰峰值為 Vp-p = 2

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