1. What is the Torque Formula?

The torque formula T = Kt × I calculates the torque produced by an electric motor based on its torque constant (Kt) and the current (I) flowing through it. This relationship is fundamental in motor control and electromechanical systems.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (Nm)
• \( Kt \) — Torque constant (Nm/A)
• \( I \) — Current (A)

Explanation: The torque constant (Kt) is a motor-specific parameter that relates the current input to the torque output. For a given motor, this relationship is typically linear.

3. Importance of Torque Calculation

Details: Accurate torque calculation is essential for motor selection, system design, and performance analysis in various applications including robotics, industrial automation, and electric vehicles.

4. Using the Calculator

Tips: Enter the torque constant in Nm/A and current in amperes. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the torque constant (Kt)?
A: The torque constant is a motor parameter that indicates how much torque the motor produces per ampere of current. It's typically provided in the motor's datasheet.

Q2: Is this formula applicable to all motor types?
A: This linear relationship is most accurate for DC brush and brushless DC motors. Other motor types may have different torque-current relationships.

Q3: How does temperature affect torque calculation?
A: Motor heating can change resistance and magnetic properties, potentially affecting the torque constant. For precise applications, temperature compensation may be needed.

Q4: Can I use this for AC motors?
A: AC motors have more complex torque-current relationships that depend on power factor and other parameters. This simple formula is not directly applicable.

Q5: What are typical units for torque constant?
A: The most common unit is Newton-meters per ampere (Nm/A), though some datasheets may use ounce-inches per ampere or other units.