stress and strain and strain guage

Stress : Force that produces strain on a physical body.

stress= F/A
Stress (N/m2)
F: Force (N)
A: Area (m2)

Strain: Deformation of a physical body under the action of applied forces.

e= ΔL/L= L-L/L
e : strain

L= Original length
Δ= change in length

Strain guage:

It is a device used to measure the strain of an object। the most common type of strain gauge consists of an insulating flexible backing which supports a metallic foil pattern.

pressure and pressure sensor

Pressure:
The force applied to a unit area of surface.
P=F/अ
प:pressure(Pa)
F= force(N)
A= cross sectional area(m2)





Pressure sensor: An instrument component that detects a fluid pressure and produces an electrical signal related to the pressure. Also known as electrical pressure transducer.

sensors for force and pressure

Force:
the influence that produces a change in a physical application.

F= m . a
F= Force (N)
m= Mass (kg)
a= Acceleration (m/s2)

types of forces:
gravity
friction
air resistance

Force Sensor is defined as a transducer that converts an input mechanical force into an electrical output signal. Force Sensors are also commonly known as Force Transducers.