1. What is Motor Torque?

Motor torque is the rotational force produced by an electric motor when current flows through it. It's directly proportional to the current and the motor's torque constant (k_t).

2. How Does the Calculator Work?

The calculator uses the fundamental torque equation:

Where:

• \( \tau \) — Torque (N·m)
• \( k_t \) — Torque constant (N·m/A)
• \( I \) — Current (A)

Explanation: The torque produced by a motor is directly proportional to the current flowing through it, with the torque constant being the proportionality factor.

3. Importance of Torque Calculation

Details: Accurate torque calculation is essential for motor selection, system design, and ensuring the motor can handle the required mechanical load.

4. Using the Calculator

Tips: Enter the motor's torque constant in N·m/A and the current in Amperes. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical torque constant value?
A: Torque constants vary widely by motor type and size, typically ranging from 0.001 N·m/A for small motors to several N·m/A for large industrial motors.

Q2: Does this equation work for all motor types?
A: This linear relationship holds true for permanent magnet DC motors and brushless DC motors under steady-state conditions.

Q3: How does temperature affect torque?
A: High temperatures can reduce torque by increasing winding resistance and potentially demagnetizing permanent magnets.

Q4: What's the difference between stall torque and running torque?
A: Stall torque is the maximum torque at zero speed, while running torque is what's available during normal operation.

Q5: How do I find my motor's torque constant?
A: The torque constant is usually specified in the motor's datasheet, or it can be calculated from other motor parameters.