Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [air-pressure]

12 questions
6
votes
2 answers

How is clearance affected by altitude (air pressure)?

Let's say you have a high-voltage circuit (or any voltage really) and you want to provide appropriate clearance distance for the PCB, connector pins, etc. (Above image from link) There are standards for choosing the correct distances. Some of them…
Bort
  • 5,102
  • 5
  • 31
  • 56
2
votes
1 answer

Real input range of differential ADC HX710B

Accordingly to the datasheet of HX710B its differential input range is +/-20mV. The HX710B is used in the air pressure sensor together with sensing bridge MPS20N0040D. The schematics is: For reading the sensor I use one of HX711 libraries - tried…
Ivy Growing
  • 335
  • 4
  • 12
1
vote
0 answers

Does flowing or turbulent air affect gas sensors such as PM2.5 Laser dust sensors and NDIR sensors?

My project is to place a laser dust sensor to detect PM2.5 and an NDIR gas detector on a drone to measure air quality. My understanding is that these sensors work by shining a laser through a channel of air and measuring the laser with a detector…
coding_guy69
  • 23
  • 2
1
vote
2 answers

MPX2100DP differential pressure sensor with Arduino

I am trying to use a pressure sensor which is MPX2100DP. Datasheet is; https://www.nxp.com/docs/en/data-sheet/MPX2100.pdf My goal is to measure the air pressure inside a pipe. First of all, I tried it alone. 1st = GND, 2nd = A1, 3rd = +12V. (I…
zehra
  • 13
  • 4
0
votes
1 answer

Air compressor - auto on and off

What can I add to my air compressor so it automatically turns off when it exceeds a certain pressure, and on when below a certain pressure? Is there a device that I can manually set lower and upper pressures limits that acts as an on off switch? The…
WindowHelmet
  • 11
  • 3
0
votes
1 answer

Using pressure transducers and air pumps with arduino

I am trying to create an pneumatic system where the Arduino board can both pump air and work as a vacuum. I am confused as to what exactly an pressure transducer can do. As far as I know, a transducer converts energy from one form(pressure in this…
Stranjer
  • 1
0
votes
0 answers

Measuring Pressure Difference From MPX10DP sensor using Arduino

I'm trying to measure differential pressure of air from MPX10DP sensor using Arduino. This sensor has a very low voltage output that is about 35 mV, so Arduino UNO cannot read it directly. Thus, I implemented the sensor with an amplifier circuit I…
Samar Gh
  • 1
  • 1
0
votes
2 answers

Interpreting HP ratings of a pressure switch label?

I'm trying to interpret the voltage/HP table given on the badge of an air compressor pressure switch. Here's the badge: What is confusing is what this table is actually supposed to be telling me. The "axes" of the table are voltage vs. HP. The…
StayOnTarget
  • 1,226
  • 12
  • 25
0
votes
2 answers

Read three signals from MPX2102DP pressure sensor

I have an MPX2102DP pressure sensor. I have designed a simple instrumentation amplifier using the OP07 amplifier to read the output (differential pressure) of this sensor. From the datasheet, I have found that there is a signal for each pressure. …
Ayman hussien
  • 27
  • 5
0
votes
0 answers

Performance of series fans on a heatsink

I have a large heatsink with fans that push air through the heatsink parallel to the fins, very similar to Fischer Elektronik LA 9 150 230 V but not identical. I know that a heatsink increases the static pressure of a fan, reducing total airflow…
Pyrohaz
  • 316
  • 3
  • 10
0
votes
2 answers

Hovercraft not moving at all

I'm a beginner in electronics. I tried making a hovercraft that looks like this: The bottom looks like this: And the battery used is this: I have used a 9v motor, a 9v battery and a dual blade propeller. For now, I just temporarily connect the…
Vin
  • 103
  • 3
-2
votes
1 answer

Using an air pump for an pneumatic forearm trainer

I am attempting to create a forearm training device which looks like this (I don't know what it's called). Can I use this air pump motor with an arduino? It can provide pressure up to 100 kpa, but I don't understand how much that is physically. Are…
Stranjer
  • 1