Manometer

This topic has 2 replies, 2 voices, and was last updated 15 November 2013 at 20:37 by Sub Mandrel.

Viewing 3 posts - 1 through 3 (of 3 total)

Author

Posts
15 November 2013 at 13:01 #135594
Johs- Line 1
Participant
@johs-line1
I will try to make a smal manometer and I think it has been a drawing and building instrukyion in the Model Engineering magazin some time ago.

I can not find the magazine, can some help?
Advert

15 November 2013 at 13:01 #22955
Johs- Line 1
Participant
@johs-line1
15 November 2013 at 20:37 #135623
Sub Mandrel
Participant
@submandrel
Hi Johs,

I don't recall the article, but manometers are reasonably straight forward to make.

Essentially it is a u-shaped tube filled with water about half-way up the arms. Fitted to a back-board you measure the difference in height between water in each arm, this gives the pressure difference in 'water gauge'. 100mm difference is 0.01 bar, within the limits you are likely to be able to measure the difference.

The tubes should be large enough diameter that surface tension and meniscus effects don't affect the reading (say 6mm+)

How great is the pressure (or vacuum) you need to measure?

Neil
Author

Posts

Viewing 3 posts - 1 through 3 (of 3 total)

Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

Advert

Latest Replies

Viewing 25 topics - 1 through 25 (of 25 total)

- Topic
- Voices
- Posts
- Last Post
- 1930 Austin 12 with 3rd brush dynamo
  Started by: john fletcher 1 in: General Questions
- 9
- 12
- 6 July 2026 at 20:16
  Robert Atkinson 2
- Identifying the pitch of threading inserts
  Started by: Bill Phinn in: Workshop Tools and Tooling
- 6
- 13
- 6 July 2026 at 20:13
  old mart
- When is a new 90 degree drill not 90 degrees?
  Started by: Bill Phinn in: Workshop Tools and Tooling
- 5
- 7
- 6 July 2026 at 20:09
  old mart
- Valuatiion of severql models
  Started by: ron vale 3 in: Stationary engines
- 4
- 4
- 6 July 2026 at 19:23
  Weary
- Lathe coolant applicators
  Started by: lucerne in: Manual machine tools
- 13
- 15
- 6 July 2026 at 18:40
  Howard Lewis
- Flywheel material
  Started by: Speedy Builder5 in: Materials
- 6
- 7
- 6 July 2026 at 18:33
  Dalboy
- Myford Ml7 Technical Drawings 1 2 3
  Started by: Harry Broadbent in: Model Engineer & Workshop
- 28
- 70
- 6 July 2026 at 18:12
  duncan webster 1
- Flat Surface 1 2 3
  Started by: COLIN MARTIN 2 in: Materials
- 33
- 63
- 6 July 2026 at 18:08
  Howard Lewis
- Hi there fellow engineers
  Started by: ray1580 in: Introduce Yourself – New members start here!
- 6
- 9
- 6 July 2026 at 17:19
  Howard Lewis
- Hallo from Austria
  Started by: wilfried54 in: Introduce Yourself – New members start here!
- 4
- 5
- 6 July 2026 at 17:16
  Howard Lewis
- Jaxon Steam Car ride to the next 5 inch rail club
  Started by: Werner Schleidt in: Traction engines
- 4
- 5
- 6 July 2026 at 17:11
  Werner Schleidt
- Unwanted Car Software Update 1 2
  Started by: Chris Crew in: The Tea Room
- 19
- 29
- 6 July 2026 at 16:26
  Bill Phinn
- 24cc DIESEL ENGINE FROM SOLID 1 2 3
  Started by: dean clarke 2 in: I/C Engines
- 13
- 60
- 6 July 2026 at 08:29
  alecs
- Accolade
  Started by: Bill Dawes in: General Questions
- 8
- 8
- 6 July 2026 at 00:18
  Nigel Graham 2
- What Did You Do Today 2026 1 2 … 4 5
  Started by: JasonB in: The Tea Room
- 36
- 119
- 6 July 2026 at 00:13
  Nigel Graham 2
- Laser centre finder 1 2
  Started by: Buffer in: General Questions
- 16
- 33
- 5 July 2026 at 21:54
  Vic
- Brass covered steel
  Started by: Dougie Swan in: General Questions
- 9
- 10
- 5 July 2026 at 20:43
  Dougie Swan
- Testing Single Point Thread Fitment 1 2
  Started by: berwick in: Beginners questions
- 17
- 30
- 5 July 2026 at 16:44
  Michael Gilligan
- My Minnie 1 2
  Started by: Nick Welburn in: Work In Progress and completed items
- 8
- 41
- 5 July 2026 at 15:45
  Nick Welburn
- Optimum products? 1 2 3
  Started by: Alan Ambrose in: Manual machine tools
- 24
- 51
- 5 July 2026 at 13:22
  southernchap
- An arduino enigma
  Started by: duncan webster 1 in: Electronics in the Workshop
- 8
- 18
- 5 July 2026 at 10:29
  John Haine
- Easy as Pi
  Started by: Michael Gilligan in: Clocks and Scientific Instruments
- 5
- 9
- 5 July 2026 at 10:06
  michael m
- My week this week! My workshop videos 1 2 … 12 13
  Started by: Phil Whitley in: The Tea Room
- 16
- 324
- 4 July 2026 at 16:46
  Phil Whitley
- NPT thread
  Started by: Bill Dawes in: General Questions
- 8
- 11
- 4 July 2026 at 15:46
  Dave Halford
- New project for 2025 1 2
  Started by: SteveP in: I/C Engines
- 8
- 26
- 4 July 2026 at 15:12
  SteveP

Manometer

Manometer

Latest Replies

Latest Issue

July 2026

Newsletter Sign-up

Latest Replies