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Converting RPM to G

Relative Centrifugal Force (RCF) Formula:

\[ G = \frac{RPM^2 \times r}{894} \]

rev/min
cm

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1. What is RPM to G Conversion?

Definition: This calculator converts rotational speed (RPM) to relative centrifugal force (G-force) based on the radius of rotation.

Purpose: It's essential for laboratory centrifuges, industrial equipment, and any application involving rotational motion.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ G = \frac{RPM^2 \times r}{894} \]

Where:

Explanation: The formula relates rotational speed to the equivalent gravitational force experienced at a given radius.

3. Importance of RPM to G Conversion

Details: Accurate conversion is crucial for proper centrifuge operation, ensuring samples are subjected to correct forces without equipment damage.

4. Using the Calculator

Tips: Enter the RPM (rotations per minute) and rotational radius in centimeters. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is the radius measured in centimeters?
A: The formula is derived using centimeter units for consistency with common laboratory equipment specifications.

Q2: What's a typical RPM range for centrifuges?
A: Laboratory centrifuges typically operate between 1,000-30,000 RPM, depending on application.

Q3: How does radius affect G-force?
A: G-force increases linearly with radius - doubling the radius doubles the G-force at the same RPM.

Q4: What's the relationship between RPM and G-force?
A: G-force increases with the square of RPM - doubling RPM quadruples the G-force.

Q5: When would I need this calculation?
A: When setting up centrifuges, comparing different equipment, or verifying manufacturer specifications.

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