Top 8 Arduino Vacuum

 Applications:

The car: tire gauge, car air pump, MAP sensor, diagnostic equipment, steam engine and suspension control, automotive sensors.

  Industry: pressure switches and controls, air brake switch, cable leak detection, portable pressure gauge.

  Medical: patient monitoring and diagnostic equipment, blood pressure monitors.

  Research: aerodynamics miniature absolute pressure sensor.

  Range: 150kpa (absolute pressure) pressure range from vacuum (absolute 0 pressure) above atmospheric pressure 50kpa

  Remarks: 15psi are range. Vacuum (-100kPa), that can be measured can also be used to measure positive (positive and negative pressure detection) can also be used for the compositescale.

  Output: mV signal

  Electricity supply: 5VDC or constant current 1Ma of

  Linear accuracy: 0.25% FS

  Nonlinear <0.20% FSO

  Piezoresistive sensing technology, the silicon / silicon-bonded chips, good stability

   Electrical performance (22 ° C)

  Environmental conditions

  Temperature Range

  Operating temperature -40 to 125 ° C

  Storage temperature -55 to 150 ° C

  Maximum overvoltage 6X

  Usually pressure 2X

  Compatible medium gas

  Technical indicators (1)

  Zero output  ± 8 mV / v /  ± 10 mV / v

  Full scale output 65-115 mV / 75-125 mV / 170-280 mV

  Linearity of ± 0.20% FSO / ± 0.25% FSO

  Hysteresis and repeatability of ± 0.10% FSO

  Zero temperature coefficient of ± 30 μv / v / ° C

  Resistance temperature coefficient of 0.30% / ° C

  Sensitivity temperature coefficient of -0.20% FSO /  ° C

  Zero Thermal Hysteresis ± 0.10% FSO

  Long-term stability of ±

We stock a few barometric pressure sensors, great for altitude and weather measurements. This pressure sensor is special because it comes with a metal port! Unlike other pressure sensors, you can easily attach a tube to it, to measure air pressure inside a close space. In particular we think this would be a great sensor for use with making DIY assistive tech “Sip & Puff” interfaces, or measuring the pressure within a vacuum chamber or other pressurized container. Unlike most ported pressure sensors, this one uses I2C, it’s really easy to use with any microcontroller. Inside is a silicone-gel covered pressure sensing gauge with a pre-calibrated and compensated 24 bit ADC. We have example code and libraries for Arduino or CircuitPython/Python. You can measure absolute pressure 0 to 25 PSI, which is a great range since ambient pressure here on Earth is about 14.5 PSI. The port is made of stainless steel and is 3.7mm long and 2.5mm diameter. It doesn’t come with tubing so be sure to purchase some tubing to attach to the port. We’ve placed this nice sensor on a breakout board with 3.3V power regulation and level shifting so you can use it with any kind of microcontroller or microcomputer, from an Arduino compatible to Raspberry Pi

Main ColorBlack, Red, Lever Length:28mm/1.1″ Action TypeMomentary.

Description:
The MPXV7002 series piezoresistive transducer in the small outline package (SOP) is a state-of-the-art monolithic silicon pressure sensor.
It’s designed for a wide range of applications, and particularly those employing a microcontroller or microprocessor with A/D inputs.
This patented, single element transducer combines advanced micromachining techniques,
Thin-film metallization and bipolar processing which provide an accurate,
High level analog output signal that is proportional to the applied pressure.
In addition, with an offset specifically at 2.5V instead of the conventional 0V.
This new series allows to measure pressure up to 7kPa through each port for pressure sensing,
but also for vacuum sensing (refer to the transfer function in the data sheet for more detailed information).

Specification:
-2 to 2 kPa (-0.3 to 0.3 psi)
0.5 to 4.5 V Output
Weight: 0.1oz; 4g
Please see it to know more:http://code.google.com/p/ardupilot-mega/wiki/Airspeed

Package Content:
1x Differential Pressure Sensor Board
1x Free cables

Kester “”44″” 60/40 solder rosin “”44″” is a high activity RA core flux designed for excellent instant wetting action, even on nickel surfaces. Although “”44″” is a ra-based material, the residues are non-corrosive If not cleaned. Per j-std-004, “”44″” is classified as Rom1 flux. Type: wire alloy: 60/40 (60 percent tin, 40 percent lead) description/function: wire solder diameter: 0.031 inch (1.57 mm) core size: 66 contains lead: Yes package Type: spool weight: 1 lb also available in diameter size 0.062″”.

Model Number : 2ACK-1/4-12VDC-G 

Valve Type : 2 Way Normally Closed (Valve opens with energized) 

Service Media : Air- Gas- Liquid- Water 

Operation Model : Direct Acting 

Flow Model : Uni-Directional 

Flow Rate : 0.23Cv (Fluid Flow)- 22 SCFM at 100 PSI (Air Flow) 

Response Time : Less than 20 ms 

Body Material : Anodized Aluminum 

Seal Material : NBR (Buna N) Armature 

Tube Material : Brass 

Plunger & Spring Material : Stainless Steel 

Coil Certification : CE Certification 

Coil Power : 6.5W 

Coil Class : F Class IP 65 (CE Certification) 

Coil Duty : 100% ED (Continuous Duty) 

Operating Pressure : Vacuum to 115 PSI 

Operating Temperature : -5 to 80 °C 

Port Size : 1/4″ Inch NPT Female 

Port Coil Voltage : 12V DC 

Voltage Tolerances : DC : +10% –5% ; AC : +10% -15% 

Electrical Connection : Grommet Coil with 12″ Lead Wire 2ACK Series Electric Solenoid Valve