Formulas of sensors

Pouillet

a

dR/R for strain gauges

a

dS/S for strain gauges

a

Bridgman’s rule

a

R = f(p)

a

R with temperature coef for metals

a

Mathisen rule

a

Mouser formula

a

R(T) for NTC

a

Synchro equation

a

mutual inductance M

a

Mutual inductance in serie

a

Mutual inductance in parrallel

a

Vout eddy single coil

a

Vout eddy double coil

a

skin depth

a

Lentz law

a

Cappacitance

a

Delta C thickness

a

Delta C thickness differential

a

Delta C intrusion

a

Cappacitive voltage divider

a

Bridge C equation principale

a

Currie law for piezo

a

mounted spring frequency

a

equation for piezo behaviour (currie law)

a

transient analysis piezo

a

charge amplifier result

a

lorentz force

a

EH in hall probe

a

Conductivity as function of electrons density, charge and mobility

a

Magnetoresistance effect Delta R / R

a

seebeck basic dV equation

a

thermocouple equation with 2 junctions

a

Single junction thermocouple

a

How to get reading with a Different refference temperature termocouple than in tables

a

dynamic response time (tau) of thermocouple

a

hot wire maths

a

Thomas flowmeter equation for Q as f(T)

a

Vibrating wire sensor resonant frequency

a

a’ for coreolis flowmeter

a

coreolis flowmeter Fc

a

Pyroelectric equation dP

a

electromagnet flowmeter equilibrium

a

Q flow from electroflowmeter

a

EM waves epsilon r

a

EM waves v

a

EM waves Zc conductors

a

EM waves Zc general

a

EM waves reflexion r

a

EM waves refractive index n

a

Absolute sensitivity

a

relative sensitivity

a

U-sonic waves acoustic R

a

U-sonic waves reflexion

a

U-sonic waves transmission

a

ultrasonic flowmeter fluid speed

a

ultrasonic flowmeter fluid flow

a

doppler flowmeter freq diff

a

link between reluctance and L, N

a