Sling Psychrometer? What is it? What does it do?

SSgt Private RallyPoint Member — Thu, 02 Apr 2015 21:58:57 -0400

Those weather people absolutely knows what this is. Can you tell me?

Response by TSgt Joshua Copeland made Apr 2 at 2015 9:59 PM

TSgt Joshua Copeland — Thu, 02 Apr 2015 21:59:44 -0400

Without google? No idea

Response by SrA Matthew Knight made Apr 2 at 2015 10:04 PM

SrA Matthew Knight — Thu, 02 Apr 2015 22:04:20 -0400

In my defense, I am not an observer and have never encountered this device. Last I probably heard about it was tech school.

Response by TSgt Richard Wheeler made Apr 3 at 2015 3:53 AM

TSgt Richard Wheeler — Fri, 03 Apr 2015 03:53:25 -0400

a sling psychrometer is used to find the RH in the air. it has two thermometers one has a cotton sock that you pour distilled water on and the other is dry. hints the name dry bulb and wet bulb. you sling it around for a period of time as you sling it the water will evaporate causing the temp to drop the difference between the two is the RH in the air.

source: I'm an HVAC Tech and we use them in the field to test the air.