Breath Alcohol Tester
TGS822
Abstract In the event at the traffic accident, drunken driving was the most important cause. Therefore decreasing behaviors for drunken driving could reduce the traffic accident more easy. There were much people who like to drink with friends in the lunch, but they didn t try to control themselves. So they drank too much, and drove cars constrainedly. For this reason they made the traffic accident. Apparatus for measuring the inward alcohol of strength of the body, drivers knew that they drank how much and would happen something dangerous when they drove cars. It was good to reduce the traffic accident. There were many avenues for measuring the inward strength of alcohol of the body, but they were so complicated. Hence we measured the gas which people breathing out. We used a sensor which was able to measure the strengtof alcohol TGS822. By transitionary circuit, the change rate of resistance would change to the change rate of voltage, and showed it by compared circuit with different LEDs.
. i...ii Abstract.iii...iv...vi.viii..1 1.1...1 1.2...2 1.3...2..4 2.1...4 2.2..6 2.3...8 2.4...9 11 3.1.11 3.2 TGS.11 3.3 TGS.12 3.4 TGS.16 3.4.1... 16 3.4.2 TGS......18 3.4.3 TGS....19 3.4.4 TGS....21 24
4.1 24 4.1.1 V C V H.... 26 4.1.2 R L......26 4.2 26 4.3 28 4.4 29 4.5 30..32
2.1.....4 3.1 SnO 2..11 3.2 (1- ).12 3.3 (1- ).12 3.4 (2- ).13 3.5 (2- ).13 3.6 (5- ).14 3.7 (5- ).14 3.8 (8- ).15 3.9 (8- ).15 3.10 16 3.11 17 3.12 17 3.13 18 3.14 TGS 18 3.15 TGS 19 3.16 TGS.20 3.17 TGS.20 3.18 TGS109...21 3.19 TGS203...22 3.20 TGS822...22 4.1..24 4.2 TGS822.25 4.3..27
4.4..28
2.1....5 2.2 7 3.1 TGS...23 4.1 TGS822.25 4.2 TGS822.26
1.1 0.55 0.11 0.25 0.55 0.11
0.25 1.2 20 80 dehydrogenase 95 5 [1] 1.3
2.1 () 180 () [2] 2.1 10464 [4] 2.1 [3] 2.1
2.1 0.25mg/L(50mg/dL) 0.40mg/L(80mg/dL) 0.50mg/L(100mg/dL) 0.55mg/L(110mg/dL) 0.75mg/L(150mg/dL) 0.85mg/L(170mg/dL) 1.50mg/L(300mg/dL) 2.00mg/L(4000mg/dL) 2.50mg/L(500mg/dL) dl mg 0.03 100 15% 0.07 100 33% 0.11 100 55% 0.21 100 94% [2] (0.7%) (0.1%) (0.3%)
[2] 2.2 BrAC BAC Henry s Law 0.25 0.55 0.25 0.55 BAC BrAC 2.2 BAC BrAC [5] BAC 1.0 (0.10 100 )BrAC 0.5 (0.1
210 ) [2] 2.2 0.50mg/g 0.25mg/L 0.50mg/g 0.25mg/L 0.20mg/g 0.1mg/L 0.50mg/g 0.25mg/L 0.50mg/g 0.25mg/L 0.50mg/g 0.25mg/L 0.50g/L 0.25mg/L 0.50mg/mL 0.25mg/L 0.50mg/mL 220ug/L 80mg/dL 35ug/dL 0.80g/L 0.80g/L# 0.80g/L 0.80g/L# 0.80g/L 0.80g/L# 0.20mg/mL 0.20mg/ML# 0.80g/L ## 0.08 0.10g/dL 0.08 0.10g/210L 80mg/dL 80mg/dL# 0.50mg/mL 0.25mg/L g mg L dl ml
(CNS) BAC BAC BrAC 2100 1 2100 23001 21001 20001 19001 29001 BAC BrAC [2] 2.3 [1] breath-acetone
3-5 N K 2 Cr 2 O 7 KMnO 4 I 2 O 5 2.4 1954 R. F. Brokenstein Breathalyzer
50 420nm [1]
3.1 ( ) 3.2TGS FIGARO SnO 2 3.1 3.1 SnO 2 [6]
( ) SnO2 (2e - ) SnO 2 SnO 2 3.3 TGS 1-3.2 (1- ) [6] 3.3 (1- ) [7]
(Vc)100V AC or DC (V H )1.0V (TGS109) (R L )4KΩ 2-3.4 (2- ) [6] 3.5 (2- ) [7] (Vc)12 AC DC
(V H ) 0.8 (60 ) AC DC 0.25 (90 ) (R L ) (Ps 15 ) 5-3.6 (5- ) [6] 3.7 (5- ) [7] (Vc)5 AC DC (V H )0.55 AC DC
(V HC )0.68 (T HC )10 5 8-3.8 (8- ) [6] 3.9 (8- ) [7]
(Vc)24 AC DC (V H )5 AC DC (R L ) (Ps 15 ) 3.4TGS 3.4.1 TGS [6] 3.10
3.11 3.12
3.13 3.4.2 TGS SnO 2 SnO 2 N TGS 3.14 3.15 TGS109 [6] 3.14 TGS
3.15 TGS SnO 2 (1) Rs (2) Rs (3) Rs 3.4.3 TGS TGS
3.16 TGS [6] SnO 2 3.17 TGS [6]
Rs TGS (1) 1~2 (T Ts ) (2) (T T D ) (3) (T Tr ) 3.4.4 TGS TGS [7] 3.18 TGS109
3.19 TGS203 3.20 TGS822
3.1 TGS ( 500~10,000 ) ppm 50~1,000pp (CO) m TGS813 TGS2610 TGS203 TGS2440 100V LPG TGS813 (CO) ( ) (NH 3 ) 30~300ppm TGS826 R-113 R-22 (H 2 S) 5~100ppm TGS825 50~5,000pp m R-21 R-22 R-134a R-22 100~3,000p pm 100~3,000p pm TGS822 TGS2620 TGS830 TGS831 TGS832 ppm TGS800 TGS2100 IC ( (COH 2 ) TGS2600 ) (H 2 S) R-21 22 R-134a22
4.1 TGS822 TGS822 TGS822 4.1
4.2 TGS822 [6] 4.1 TGS822 Vc 24V max AC or DC V H 5V ± 0.2V AC or DC Ps 14mW max PsVc 2 Rs(RsR L ) 2 30 70 10 40
4.2 TGS822 (Rs) Rs 300ppm( ) 1KΩ10KΩ Rs 300ppm( )Rs 300ppm( ) 0.4±0.1 (R H ) 38Ω±3Ω V H 5V 660mW±55mW 4.1.1 V C V H 4.1TGS822 24V max 9V 110V 9V 5V±0.2V V C 5V 78M05 IC 9V 5V 4.1.2 R L 4.2 300ppm 1KΩ10KΩ 3.12R O 1KΩ10KΩ 50ppm R S R O 3 50ppm R S 3KΩ30KΩ 500ppm R S R O 0.7R S 0.7KΩ 7KΩ Ps(Vc 2 Rs)(RsR L ) 2 14mW (5 2 0.7K)(0.7KR L ) 2 14mW 350Ω R L R S R L R L R S 14mW R L 2.4 KΩ 4.2
PART A IC V H 5V V C 78M05 IC(1 Amp ) 9V 5V ( ) PART B Rs Vo Vo Vo R L (RsR L ) 5V PART C 3.8 Rs Vo OPA v()v() OPA 0VLEDA Rs Vo OPA v()v()leda LEDA
RV1R1R2 R1 OPA v() v() R2(RV1R1R2) 5V OPA LM339 LEDA 4.3 1. Vo(N) 4.3 Vo(N) 2. V A V B V C V A
V C RV2RV3R4R5 V B R5(R4R5) (V A V C )V C 12 (V A V C ) V C 12 (V A V C ) V B (V A ) (V C ) 3. G1G6 3 Rs NAND 74LS00 4. OPBOPCOPD LM339 5. R6R7R8 6. R9 RS 5V R S 7. SW1 SW1 G2 G4G6 0 G2G4G6 1 RS G1G3G5 0 LED1 ( ) 8. LED1LED4 LED1 LED4 4.4 1. V A V B V C Vo(N)( ) OPBV A V B V C Vo(N) v()v()v P 5V G1 G2 V Y1 0VLED4 OPCV B V C Vo(N) v()v()v Q 5V G3 G4 V Y3 0VLED3 OPDV C Vo(N) v()v()v R 5V G5 G6 V Y5 0VV Y6 5V V Y5 0VLED2 V Y6 5VLED1 2. V A V B Vo(N)V C ( )
OPB V A V B Vo(N) v()v()v P 5V G1 G2 V Y1 0VLED4 OPCV B Vo(N) v()v()v Q 5V G3 G4 V Y3 0VLED3 OPDVo(N)V C v()v()v R 0V G5 G6 V Y5 5VV Y6 0V V Y5 5VV Y3 0V LED2 V Y6 0V LED1 3. V A Vo(N) V B V C ( ) OPBV A Vo(N) v()v()v P 5V G1 G2 V Y1 0VLED4 OPCVo(N) V B v()v()v Q 0V G3 G4 V Y3 5V V Y1 0VLED3 OPDVo(N) V B V C v()v()v R 0V G5 G6 V Y5 5VV Y6 0V V Y5 5VV Y3 5V LED2 V Y6 0VLED1 4. Vo(N)V A V B V C ( ) OPBVo(N)V A v()v()v P 0V G1 G2 V Y1 5VLED4 OPCVo(N)V A V B v()v()v Q 0V G3 G4 V Y3 5V V Y1 5VLED3 OPDVo(N)V A V B V C v()v()v R 0V G5 G6 V Y5 5VV Y6 0V V Y5 5VV Y3 5V LED2 V Y6 0VLED1 4.5
1. IC 78M05 4.8V5.2V 5V 2. IC(LM339 74LS00)Vcc 3. LEDA LEDA LEDA LEDA 4. Vo(N) Vo(0)0.5V (Vo(0) ) 5. RV1 OPA v()vo(0) 0.1V LEDA 6. Vo(N) Vo(max)3.5V (Vo(max) ) 7. RV2 V A Vo(max) V A Vo(max)0.2V 8. RV3 Vc Vo(0) VcVo(0)0.2V 9. 35 LEDA LEDA
[1] 2004 2 [2] 2000 6 8 [3] 21-23 [4] Widmark EMPDie theoretischen Grundlagen und die praktische Verwendbarkeit dergerichtlich-medizinischen AlkoholbestimmungUrban und Schwarzenberg Berlin,Germanypp 1-140,1932. [5] Jones AW,Logan BKDUI defensein Karch SNB(Ed)Drug Abuse Handbook CRC PressBoca Raton, FLpp 1006-1045,1998. [6] 2002 5 [7] 1996 9