PID烙鐵恒溫控制器設(shè)計與制作_圖文精

1、2013學(xué)年第二學(xué)期實(shí)訓(xùn)報告PID烙鐵恒溫控制器設(shè)計與制作學(xué)生姓名：吳祖軍學(xué)生學(xué)號:20102537所在班級：10級電科（2班指導(dǎo)老師:蔣群實(shí)訓(xùn)地點(diǎn)：理工樓一.實(shí)訓(xùn)的目的及意義通過“PI味鐵恒溫控制器設(shè)計與制作”加深對自動控制PID的理解和認(rèn)識。掌握什么是P控制器，什么是I控制器以及什么是D控制器，并學(xué)會把它們組合起來一起進(jìn)行控制。“PID&鐵恒溫控制器”實(shí)質(zhì)是就是通過溫度的改變來控制輸出量，從而控制輸入量。通過烙鐵溫度的改變來控制熱敏電阻的阻值，來影響輸出量。二.實(shí)訓(xùn)實(shí)驗(yàn)原理R151kQU1ALM358D324LM358D56487U2ALM358D32481U2BLM358D57V

2、CC5VC110uFR250kQKey=B50%R310kQR410kQR510kQR651kQR7100kQKey=A43R8100kQR951kQ6R10510QR1151kQC210pFC310uFC41uFR12100kQ12R13100kQ1327XMM1VCC5VVCC5VR1410kQ15VCC1510三.實(shí)訓(xùn)實(shí)驗(yàn)步驟1 .在電原理圖中，包括了兩個慣性環(huán)節(jié)，一個比例環(huán)節(jié)和一個微分環(huán)節(jié)。其中，積分環(huán)節(jié)可以看成是慣性環(huán)節(jié)的特殊情況。NTC熱敏電阻是具有負(fù)溫度系數(shù)的電阻，它隨著溫度的升高，電阻值是減少的。在實(shí)驗(yàn)中我們用電烙鐵來影響熱敏電阻。2 .比例環(huán)節(jié)的模擬電路及其傳遞函數(shù)如圖1-1

3、。G(S=-R2/R1可以知道圖中比例環(huán)節(jié)的傳遞函數(shù)是G(s=13 .慣性環(huán)節(jié)的模擬電路及其傳遞函數(shù)如圖1-2。G(S=-K/TS+1K=R2/R1T=R2C可以知道圖中第一個慣性環(huán)節(jié)的傳遞函數(shù)G(s=-(R7/R5/(R7*C1+1。第二個慣性環(huán)節(jié)的傳遞函數(shù)是G(s=-(R12/R6/(R12*C2+1。4比例+微分環(huán)節(jié)的模擬電路及傳遞函數(shù)如圖1-5(未標(biāo)明的C=0.01uf。G(S=K(TS+1K=R2/R1,T=R2c可以知道當(dāng)R2=R1是就組成了一個理想的一階微分環(huán)節(jié)，圖中的一階微分環(huán)節(jié)的傳遞函數(shù)是G(s=-(R9/R14(R9*C9+1。5.參照熱敏電阻當(dāng)阻值為10K的各項(xiàng)參數(shù)如下：

4、已知條件B常數(shù)3380單位k創(chuàng)建人:LXF日期：2008-6-11R值10計算公式：Rt=R*EXP(B*(1/T1-1/T2說明:1、Rt是熱敏電阻在T1溫度下的阻值；2、R是熱敏電阻在T2常溫下的標(biāo)稱阻值;3、B值是熱敏電阻的重要參數(shù)；4、EXP是e的n次方；5、這里T1和T2指的是K度即開爾文溫度,K度=273.15(絕對溫度+攝氏度；溫度T1阻值Rt溫度T1阻值Rt溫度T1阻值Rt溫度T1阻值Rt-40235.83075593225.795966881445.0704378231.4580779678-39221.67240981324.673611964454.90340115988

5、71.4204703156-38208.47382602423.6076665674.7428627464881.3840329328-37196.16305694522.594945784474.5885344983891.3487237721-36184.6740348763086484.4401425688901.314502486-35173.94605364720.717416866494.2974265762911.2813303512-34163.92329912819.847177965504.1601388769921.2491701959-33154.5544919.019

6、27514.028043931.217986237681118813314-32145.792160681018.2313991854074941.1877444861-31137.592973521117.481363273533.7785460774951.1584117439-30129.916738433414543.6607267421961.1299564843-29122.726455061316.086755023553.5472659437971.1023483265-28115.98791415.438447903563.4379794071981.075558075-27

7、109.669807111514.820498836573.33269156091.0495576687-26103.742810931614.231304683583.23123508491001.0243201323-2598.1800873621713.6693559663.13345048391010.99981952932-2492.9567534361813.133230897603.03918568521020.97603091812-2388.04978631312.621589814612.94829565811030.95293030945-2283.43787283520

8、12.133170007622.86064205551040.93049462625-2179.10127212111.666780884632.77609287481050.90870166515-2075.0216899022211.221299475642.6945220.88753005982-1971.1821639242310.795666238652.61580958551070.86695924602-1867.5669587172410.388882.5398403981080.84696942817-1764.1614695662510672.46650491721090.

9、8275415475-1660.952134444269.6281312.39569839471100.80865725166-15-14-13-12-11-10-9-8-7-6-5-4-3-2-10157.926359.2724312.3273200.79029827691113332958574888656455.072418.9321062.2612760.7724492870112424140553353640652.379428.6064012.1974730.755092297111353497588733446749.837258.2946062.1358250.73821230

10、721142709243652550030247.43646304445.16827118131327.99604655577.71008558673742.07624813412.01866160541151160.721793108320.7058209802843.024497.4361201.9629890.69028133751171729290745094670340.997497.1735791.9091580.67516034761184622696947939240439.080166.9219231.8570980.66044635771194223034663911938

11、537.26586165366.6806379874781.80674287021200.6461245868335.548396.4492391.7580260.6321833779121008051696298626333.921966.2272651.7108890.61861238801222772999442442125732.381176.0142821.6652710.60539839811233574436235142426830.920965.8098741.6211160.59253040821249714448319575229.536625.6136491.5783700.57999941831256693331822147447228.223725.4252341.5369810.56779434284126508640362533600726.978125.2442751.4968990.5559044385127912487927166913426.在實(shí)際的實(shí)訓(xùn)中，采用的熱敏電阻是用可變電阻來代替的，用的是90K的可變電阻。采用公式Rt=REXP(B(1/T1-1/T