Home made sling hygrometer

Talk about musical instrument construction, setup and repair.

Moderators: kiwigeo, Jeremy D

Post Reply
legin

Home made sling hygrometer

Post by legin » Mon May 08, 2017 4:12 pm

Hi All

I thought I would make a sling hygrometer as I do not trust my cheap dial ones.
The thermometers cost $2.50 from the $2 shop. (did I get ripped off?) and the rest is from around the shed.
I just taped the thermometers to a piece of pine. Maybe I will fix them on a bit better later.
Drilled a hole for a piece of 6mm steel rod into the board and tapped the rod in tight.
Then a slightly oversized hole into the handle so it spins easy.
The wick is just a piece of shoelace.

5 bucks!!

I did my first reading today which was wet bulb 21 deg, dry bulb 28 deg - 51% humidity
I am having trouble finding a decent chart with a temp range over 30 degrees. I definitely get temps over 30 degrees here in Perth so if anyone has a chart that would be great.

My other dial hygrometers say 70% and 62%. I might try the saturated salt in the lunchbox with them and see what they read.

Please excuse the crappy mobile phone photos.
Sling_Hygrometer_back.jpg
Sling_Hygrometer_front.jpg

User avatar
Steve.Toscano
Blackwood
Posts: 489
Joined: Thu Feb 07, 2013 11:43 pm
Location: Port Stephens NSW

Re: Home made sling hygrometer

Post by Steve.Toscano » Mon May 08, 2017 11:58 pm

Thats one way.... :D

I have 4 sub $10 hygrometers from jaycar.
They sit on the same shelf in the workshop and they all give different results ( although usually all within ~5%). I just average them out :lol:
Oddly the one in the group that reads low one day can read high the next day and vice versa.

garryalb
Myrtle
Posts: 53
Joined: Sun Dec 07, 2008 3:31 pm

Re: Home made sling hygrometer

Post by garryalb » Tue May 09, 2017 10:38 am

Hope you can read this, just a photo. A simple chart is available at fccj.us

Garry.
Attachments
image.jpeg

Post Reply

Who is online

Users browsing this forum: Google and 145 guests