Helical Coil Calculator

A helical coil is a type of coil that has a helical shape. When a material is wound or twisted around a helix, a helical coil is created. For example, a helical coil is formed when a wire or tube is wrapped around a circular object, such as a pencil. Coil diameter, pitch or spacing, wire diameter, coil height, and other design parameters can be used to make a helical coil. The benefit is that these parameters can be used to customize this versatile part for a variety of applications, including a helical coil spring and a heat exchanger.

Let's take a look at some of the helical coil calculator's coil parameters.

Coil diameter (Dc): The coil diameter is calculated by measuring the distance between the coil's center and the neutral circle.

Wire diameter (Dw): This measurement refers to the diameter of the coil wire. The diameters of the coil and wire are related using the equation: Dw = 2 x (Do - Dc)

Where Do = helical coil's outer diameter.

Turns (N): The number of times the wire is wound on the helix axis is indicated by the number of turns (N).

Pitch (S): Pitch or spacing refers to the distance between successive coils.

Height of coil (H): The distance between the coil's top and bottommost points is defined as the coil's height (H). The equation can be used to calculate the coil's height: H = N x (S + Dw)

Length of a helical coil (Lw): The length of a helical coil (Lw) refers to the total length of wire used to construct the coil. To put it another way, the circumference of the coil is multiplied by N. The formula for the length of a helical coil can be written as:L = π x Dc x N

Inductance (L): Inductance (L) is a material's capacity to modify the electric current that flows through it. It's counted in Henries. The inductance L is determined by coil characteristics such as: L = (Dc x N)2 / (18 x Dc + 40 x Lw)

The volume of wire used in the coil (V): The volume swept by the cross-section along the helix is called the volume of wire used in the coil (V).

V = π x Dw2 x Lw / 4

Resonant frequency (Rf): The frequency at which the capacitance of an inductor resonates with the ideal inductance, resulting in high impedance, is known as the resonant frequency (Rf). The following equation can be used to find it: Frequency = 1 / (2 x π x √(L x C))

Where, C = capacitance of the coil.

This tool is primarily used to calculate coil inductance and volume using coil parameters. You can also use it in reverse to find out coil parameters based on the inductance. To find out how much inductance a coil has, do the following:

• Step 1: Enter the coil radius Rc or the coil diameter Dc (in Advanced mode).
• Step 2: Fill in Dw for wire diameter.
• Step 3: N is the total number of turns in the coil.
• Step 4: Enter the coil pitch or spacing, S.
• Step 5: The height, H, and wire length, Lw, of the coil spring will be returned by the coil spring calculator.
• Step 6: The inductance, L in microHenries, and total volume of the coil V, are also calculated using the helical coil calculator.
• Step 6: C in picofarads is the capacitance.
• Step 7: The coil's resonant frequency will be returned by the calculator.

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1. What is a helical coil?

Helical coils are metal tubes that have been bent into a spiral shape when referring to metal tubing. A helical coil can be as simple as one or two spiral turns or as complex as a series of spirals several feet long, depending on the finished product's requirements.

2. What formula is used to determine the helical length?

It's calculated by multiplying the height and circumference by the square root of the sum of the squares. This helix coil formula can also be used to determine the length of a coil.

3. What is a transformer's helical coil?

A helical winding is made up of rectangular strips wound in a helix shape. The strips are wound radially in parallel, with each turn taking up the entire radial depth of winding. Helical coils are ideal for large transformer low voltage windings.

4. What is a helical heat exchanger used for?

High temperatures and extreme temperature differentials can be handled with helical geometry without causing high induced stresses or requiring expensive expansion joints. The exchanger's advantages are enhanced by its high-pressure capability and the ability to completely clean the service-fluid flow area.

5. How do you find out the inductance of a coil spring?

To calculate the inductance of a helical coil, do the following:

1. Multiply the coil's diameter by the number of turns.
2. To get the numerator, square the resultant.
3. To get the denominator, multiply the coil diameter by 18 and the wire length by 40.
4. To find the inductance of the helical coil, divide the numerator by the denominator.

L = (Dc x N)2 / (18 x Dc + 40 x Lw)