Other Parts Discussed in Thread: DRV8837, MSP430G2553
Hello TI Community,
I am working on a project that involves a water meter. Our setup includes an MSP430G2553 MCU, a DRV8837 motor driver IC, and an EVM430-FR6989 as the main microcontroller. The system operates by simulating the quantity of water that passes through it via a motor. The motor's rotating speed is detected and maintained by adjusting the PWM output.
However, I'm struggling to determine the precise ratio that converts the number of motor rotations to the volume of water (in cubic meters). I understand that this ratio may depend on the specific design of the meter, but any general guidance or typical values would be greatly appreciated.
I am aware of the turbine flow meter formula K = f / Q, where:
K is the meter coefficient or K-factor, representing the number of pulses per unit volume,
f is the frequency of the pulses from the flow meter, and
Q is the flow rate.
Could you provide some insights on how this formula applies to my setup and how I might use it to calculate the flow of water? Specifically, how would I determine the K-factor for my setup?
Additionally, any relevant resources or datasheets that you could suggest would be very helpful.
Thank you in advance for your assistance.
