R&D ATN
K 1 mk(0.01 0.05
=
( ) (ITS-90)-59.3467 961.78
(T.J.Seebeck) A(+ T 1 I T 0 B - T 1 T 0 E (Thermoelectromotive force) AB =d E(AB) /dt=a+bt----------------- E(AB) T1 = = + + E( AB) α AB a b ( T0 T1 ) c ( T0 T1 ) T 0 +L
T 1 T1 = a + b ( T0 T1 ) + c ( T0 T1 ) T1 = a + b T 1 + c T 1 To
T 0out T 0in A(+) T 0A T1 = a + b ( T 0 T ) + c ( T 1 0 T ) 1 T 1 T S AMP T1 = a" + b T 1 + c T 1 B(-) T0 A T0 B TS T0 out T0 in T 0B To To
(0.4/0.01 K )
Mn, Co, Ni, Fe NTC,PTC,CTR NTC ρ = 1 enµ α = ( d ρ ρ) / dt = ( dn n) / dt ( dµ µ )/ dt ( ) R = R exp B 0 T PTC,CTR NTC
RI
+L + bt at x +LL + bt at ρ τ ρ 1 ne m = 1 x τ R 0 0 =T-73.15 e 0 t B t A R R + +
JIS R100/R0 A 0.5mA L -00100 Pt100 1.3850 B 1mA M 03503 A 0.5mA ma H 06504 L -00100 JPt100 1.3916 B 1mA M 03503 ma H 05004 1mA 4
JIS (
R = R 0 + at + bt R = R 0 { [ ( )( )]} 1+ α t + δ t t 1 100 100 C D Ro, ( 100 ( 138 5) =0.385 R=R 0 R=R 01 t=0 R=R 01 (1+ 1 ) R=R 0 (1+ ) t=100 Ro,,
BE - I C I c { exp( q ) 1} γ = ( αt )exp( q kt) kt go BE I C T BE /kt>>1 BE I C BE αt λ go exp q + BE I kt go ( kt q) ln C αt γ
( ) = + 1 1 ln ln exp C C BE BE BE C go BE go BE C I I q kt T I q kt kt q T I γ λ α α T q N k I I N I I q kt BE C C C C BE ln ln 1 1 = = = Q N I C =I C1 Q 1 Q 1 Q N N BE 0 60 0.5 0.03 IC
IC LM0B -55+130.5-11.7m/SC-70 LM0C -55+130 5.0-11.7m/SC-70 LM35A -55+150 1.0+10m/ TO-46 LM35CA -40+110 0.5+10m/ TO-9 LM135-55+150.0+10m/ TO-46 LM35-40+15.0+10m/ TO-46 AD590-55+150 5.0+1A/ TO-5 AD59AN -5+105.5+1A/ TO-9 AD59CN -5+105 0.5+1A/ TO-9 S-8110C -40+100 5.0-8.mv/ SC-8 S-810C -40+100.5-8.mv/ SC-8 SM6610-40+100 5.0-10.7m/SC-8 SM6610-40+100.5-10.7m/SC-8
IC IC 0.5 IC
(ppm/mhz) K)
1-7.
X S X S XS XS X S
0.883*10 3 0.60.9*10 3 (J/K Kg) 0.157*10 3 4.1816*10 3 1.006*10 3 1 1
.38*10 3 1.35.7*10 3 *.43*10 3 4.18*10 3 0.001*10 3 1kg/1L).7.6.3 19.3 1 0.001
1.13*10-6.310.5*10-5 (J/m S K).97*10-5.8*10-5 1m 1 S=1m ( 1/ T=1 0.4*10-5 Q 1m
X Rx Rxs S Rs S X Cx Cs
Rxs1 Rs1 Rs Rxs S X Cx1 Cs Cx X1 Rxs Cs
a Rxa S Rx Rxs Rs X Cx Cs Rsa Ca X S Rxs X S Cx>>Cs Rxa, Rsa TxTa
a Rxa X S Cx Rx Rxs Rs Cs Rsa Ca X S Rxs Rxs>Rsa
Cx Rxa Ca X S Cx Rxa Ca
T 3
T T+T Q d i 1 K=Q O /T Q O A B 3mW/ mw/.4mw/
T T δt = T T T 1 δt = T i i1 i 1 δt : i 1 T : i i 1, i ma i ma 1 1 = = i 1 i δt = T
IC ROM AD
Eo G G1 G3 G4 Ei E i G4 G3 G G1 Eo
log IC EB = E0 I 0 E i Eo E i Eo E i 0 E 0 10 E log E i
3 IC E i Eo 0 = AE i BEi E +
IC X T Y Z=XY/T
R= R 0 + A t + B t 0.016 0.04
0-00 -100 0 100 00 300 400 500 600
IPTS-68 t 68 + = + + = 1 630.74 1 419.58 1 100 100 0.045 68 0 t t t t t t t B t A R R
ITS-90 1990 R = R 0.01 W r W r ( T ) 90 3 ( T ) + a( W ( T ) 1) + b( W ( T ) 1) + e( W ( T ) 1) + f W ( T ) 90 = D 0 + 9 i= 1 r 90 T Di 90 K 754.15 481 r 90 i r 90 r 90 R 660.33 R 0.01 T 90 K 73.15 = F 0 + 9 i= 1 W Fi r ( T ) 90.64 1.64 i
= r a R t r b r a1 3 R t r b1 r b r a1 4 R t r a r b1 r b
ra I o I {( Rt Rr) + ( ra rb) }I o = + Rt Rr rb
Rt a b I o Rr I o o r o {( Rt Rr) + ( ra1 rb1) } {( Rt Rr) + r} I = = = 0 = ( Rt Rr)I I b
a1 ra Rt I b1 rb o ot = or Rt Rr Rr I
4 R t
R m R r SW A/D Converter AMP G R m = R r m r
AMP R m G A/D Converter R r SW r m r m R R =
m + E R m E m E r E m r m R R R + + = 1 R m E - m + E m r m r E r E r E m E m r m R R R R = = + + + + = ) ( ) ( ) ( ) ( 1 1 R m R r
R m R r SW AMP G m = r 1 r I R m ' R + I I R m =100 I=mA m m SW r I<10nA R m
A/D Converter o m =a m +b m o r =a r +b r R m = R r o o m r = R r a a m r + b + b m r R m
R m = ( R r + R r ) m r R m R r = R r T T + R t r t
0.1 0.5 1 5 10 50 100 500 1000 5000
Ro, Ro, - 1mA