Constantan Alloy Low Resistance Spring Resistor 0.5mm In Automotive
1. Product Description
A spring is an elastic object that stores mechanical energy.
Springs are typically made of spring steel. There are many spring
designs. In everyday use, the term often refers to coil springs.
When a conventional spring, without stiffness variability features,
is compressed or stretched from its resting position, it exerts an
opposing force approximately proportional to its change in length
(this approximation breaks down for larger deflections). The rate
or spring constant of a spring is the change in the force it
exerts, divided by the change in deflection of the spring. That is,
it is the gradient of the force versus deflection curve. An
extension or compression spring's rate is expressed in units of
force divided by distance, for example or N/m or lbf/in. A torsion
spring is a spring that works by twisting; when it is twisted about
its axis by an angle, it produces a torque proportional to the
angle. A torsion spring's rate is in units of torque divided by
angle, such as N·m/rad or ft·lbf/degree. The inverse of spring rate
is compliance, that is: if a spring has a rate of 10 N/mm, it has a
compliance of 0.1 mm/N. The stiffness (or rate) of springs in
parallel is additive, as is the compliance of springs in series
A spiral torsion spring, or hairspring, in an alarm clock.
A volute spring. Under compression the coils slide over each other,
so affording longer travel.
Vertical volute springs of Stuart tank
Tension springs in a folded line reverberation device.
A torsion bar twisted under load
Leaf spring on a truck
Springs can be classified depending on how the load force is
applied to them:
Tension/extension spring – the spring is designed to operate with a
tension load, so the spring stretches as the load is applied to it.
Compression spring – is designed to operate with a compression
load, so the spring gets shorter as the load is applied to it.
Torsion spring – unlike the above types in which the load is an
axial force, the load applied to a torsion spring is a torque or
twisting force, and the end of the spring rotates through an angle
as the load is applied.
Constant spring - supported load remains the same throughout
Variable spring - resistance of the coil to load varies during
Variable stiffness spring - resistance of the coil to load can be
dynamically varied for example by the control system,some types of
these springs also vary their length thereby providing actuation
capability as well.
They can also be classified based on their shape:
Flat spring – this type is made of a flat spring steel.
Machined spring – this type of spring is manufactured by machining
bar stock with a lathe and/or milling operation rather than a
coiling operation. Since it is machined, the spring may incorporate
features in addition to the elastic element. Machined springs can
be made in the typical load cases of compression/extension,
Serpentine spring - a zig-zag of thick wire - often used in modern
for Telecommunications equipment, Electric cars, Aerospace,
Charging station, Electroplating power equipment, Instrument and
meter, DC power system, etc.
3.Main technical data
|Accuracy class||1.0 ,5.0||Shape||Plug-in shape|
|Ambient condition||-55°C- +85°C|
|Temperature rise||no more than 120K|
|Thermoelectric potential influence||no more than 50% of the index level|