How Can I Control Syringe Pressure with Compressed Air and Vacuum Pump?

Click For Summary
SUMMARY

This discussion focuses on creating a pressure control system for a syringe using compressed air and a vacuum pump, targeting a pressure range of -15 to +15 psi. The proposed setup involves connecting both gas and vacuum sources in parallel to the syringe reservoir, with flow regulation achieved through a throttle valve and monitored via a pressure gauge. For automation, integration with LabView using an Arduino or Raspberry Pi is suggested, along with the use of suitable electronic valves and open-source software for control.

PREREQUISITES
  • Understanding of pressure control systems
  • Familiarity with Arduino or Raspberry Pi programming
  • Knowledge of LabView software for automation
  • Experience with throttle valves and pressure gauges
NEXT STEPS
  • Research Arduino libraries for pressure sensor integration
  • Explore LabView tutorials for controlling external hardware
  • Investigate suitable electronic valves for pressure control
  • Learn about vacuum pump specifications and compatibility with compressed air systems
USEFUL FOR

This discussion is beneficial for laboratory technicians, engineers designing pressure control systems, and hobbyists interested in automation projects involving Arduino or Raspberry Pi.

nanomoly
Messages
8
Reaction score
0
I would like to try and set up a pressure control system in my lab using house vacuum and compressed air. Or otherwise using a compressed air source and vacuum pump.

I want to be able to control the pressure in a reservoir (a syringe) within the range of -15 to +15psi.

I was thinking that I can do this somehow by connecting the gas source and vacuum source in parallel with the reservoir and adusting flow using throttle valve to reach desired setpoint as read by a pressure gauge.

This is far outside my area of expertise and seems like something that should be fairly easy to do. I think the general way I have suggested may work but I am not sure of the specifics and anticipate there may be a better way.

I possible I would also like to be able to have computer control, in LabView for example.
 
Engineering news on Phys.org
I would suggest an Arduiino or Raspberry Pi implementation. You can find suitable valves complete with the elecronics necessary to connect it to the computer, and open source software too.

Search the Arduino forums.
 

Similar threads

Piston suction pump versus external gear pump as vacuum pump
  • · Replies 53 ·
2
Replies
53
Views
2K
Vacuum pump design
  • · Replies 6 ·
Replies
6
Views
3K
How can I build a cost-effective DIY vacuum chamber for my experiment?
  • · Replies 14 ·
Replies
14
Views
7K
Energy of a water tank with compressed air
  • · Replies 5 ·
Replies
5
Views
2K
Mechanical pump oil discharge through inlet
  • · Replies 8 ·
Replies
8
Views
2K
Air pressure vs post-fuel pump vaporization chamber
  • · Replies 10 ·
Replies
10
Views
2K
What factors affect heat rejection in vacuum pump systems?
  • · Replies 3 ·
Replies
3
Views
4K
Undergrad In a closed loop system with a pump, how can we control the pressure?
  • · Replies 26 ·
Replies
26
Views
8K
Graduate Kelvin-Planck 2nd Law of Thermo & a Syringe Steam Engine
  • · Replies 26 ·
Replies
26
Views
4K
Find the Best Hand Vacuum Pump for Long-Term Use
  • · Replies 6 ·
Replies
6
Views
3K