Joshua Cude wrote:
Even if it gave the mass of water vapor per unit volume of steam, you'd need to know the volume to get the mass. For that you'd need a flowmeter. But if you had a flowmeter to measure the flow rate of the steam, you wouldn't need the RH meter.
They do not need a flow meter. They weigh the reservoir before and after the test. That works better than most flow meters.
If they did not measure the weight of the water, you would be right. The RH meter reading alone is not sufficient.
- Jed
