Meetsystemen

Meetsystemen
Formularium
Ultrasoon:
Z E (p)= V(p)
i m (p) = V F
Q =
mk = 1 b 2ζ
•
x
F
•
i m x = 1 ⎛
(Sk) 2 ⎝
mp + b +
p k ⎞ ⎠ ≡ L 1p + R 1 + 1
C 1 p
H(p)=
C 1L 1p 2 + C 1R 1p + 1
CC 1L 1p 3 + CC 1R 1p 2 + (C 1 + C)p ≅ 1 − C 1L 1ω 2 + jC 1R 1ω
−CC 1R 1ω 2 + jω[(C 1 + C) − CC 1L 1ω 2 ]
c = f.λ, c = elasticiteitsmodulus
ρ
, Z A = P u ≅ cρ , Z 1
-Z 2
/ Z 1
+ Z 2
T t = 2l
c , f = f 0
(1 - kt),
l = c∆t
2 = c∆ f
2kf 0
f = f c + c
v , f = f c − v totale afstand
c , λ = =λ c − v ,
aantal cycli c
2f cos θ
∆f ≅
c ,
λ =λ c + v
c
v V som = V sin 2πf t + V sin 2πft= 2V cos 2π( f − f ) t sin 2π( f
2
+ f ) t
2
Positie:
k a = ingangsversnelling
fout op uitgangshoek [t−2 ]
φ 1
~ U 1
= U 0
cosα en φ 2
~ U 2
= U 0
sinα : U r
= U r0
sin(δ - α)
Druk:
P = F/S, 1 bar = 100.000 Pa [= N/m²] of 10 N/cm². 1 atm = 9,87.E-6 Pa = 760 Torr [mmKK]
Temperatuur:
T C
= 5/9 . (T F
- 32) en 0 Kelvin = -273,16 °C
R(T)=R 0 (1 +αT +βT 2 + .. . ) , σ = (n.µ n
+ p.µ p
)q, n 2 i = A 0 T 3 e −Ego/kT
R = R 0 e β(1/T−1/T 0)
I = I r
⎛
⎝ e qV
kT − 1 ⎞ ⎠
, V =( kT q )ln( I )
I r
k = 8,62.10 -5 eV/K , q = 1,602.10 -19 C,
1 eV = 1,602.10 -19 J
∆V =α s ∆T , E = C 1 (T 1 − T 2 )+C 2 (T 2 1 − T 2 2 )
Debiet:
m = ρV, Q m =ρQ ,
PV
V = nR = cte, T υ=η ρ
, Re = vD υ = vDρ
η
p + 1 , , ,
2 ρv2 +ρgh = cte Q = A 2 k ∆p k =
2
ρ ⎛ ⎝ 1 − A 2
/A
2⎞
1⎠ Q = CA 2 k ∆p
f = S. v 1
d
,
→
F c = 2m ⎛ → →
⎝ ω× v ⎞
⎠
_________ - F.2 -
Johan Baeten