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Questions tagged [pressure]

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How to handle the noise and wrong measurements due to the actuator in a close-controlled loop [closed]

My system has to inflate a rubber device using a diaphragm pump to a specified pressure (about 1000 Pa, with an ideal accuracy of ±50 Pa). The volume of the device is about 3 L. The pump is connected ...
Mark's user avatar
  • 1,235
3 votes
1 answer
84 views

Pressure resistant boost converter

I was tasked to integrate a 48V tool (a brush, so basically a DC motor + some control electronics) on our 24V sub-sea robot for a short demonstration. We aim for depths of 100m (10 bar). The brush ...
Sandro's user avatar
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0 answers
41 views

measuring NI 9215 for measuring pressure using pressure transducer

I need to measure pressure using pressure transducer with output of 0-10 V & 0-10000 psi range and NI 9215. How could be the code?
omar abdelhameed's user avatar
0 votes
0 answers
30 views

ADC(MC3208) Interface Circuit Design

I am currently designing a Multi-ADC PCB for use different sensors, I've researched a range of different sources and would like some clarification on a few things before I finalise my design. I am ...
NDougall32's user avatar
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1 answer
43 views

Terms for pressure sensitive pads

I'm working on a project that needs pressure sensitive input, and I'm a bit lost on the lingo for parts. What would be a good search term to look for parts that describes a pressure sensitive pad that ...
Ombrezz's user avatar
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0 answers
43 views

Batteries safe for use in low-pressure conditions

I want to create a device for use in skydiving. Why when there are ready-made solutions? Because I am a skydiver and an electronics hobbyist, I would like to create something myself and experiment ...
darkanzali's user avatar
0 votes
0 answers
68 views

Very different (and wrong) values from two pressure sensors

I connected these two sensors on two different I2C busses on my board: ABP2LANT001PG2A3XX ABP2LANT060PG2A3XX Here the datasheet of the ABP2 Series. To begin, I printed out the 7 byte returned from ...
Mark's user avatar
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0 votes
1 answer
83 views

What is this electro mechanical sensor from a washing machine?

I am taking apart an old (2010) washing machine as a passtime, perhaps some day assemble a garden watering device out of the parts. What would the pictured device be? The white tube was sealed against ...
Vorac's user avatar
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0 votes
3 answers
288 views

Reading 4-20 mA industrial pressure sensor

I am trying to read an industrial pressure sensor (datasheet) with range 0-10 bar and output 4-20 mA, with an Arduino Opta RS485, powered from an external 12 VDC source. Leaving the sensor in the air,...
p_a321's user avatar
  • 113
0 votes
1 answer
63 views

reusing pressure sensor from blood pressure monitor - where is the output

I need a cheap vacuum regulator, so I decided to try to reuse a blood pressure monitor that I have laying around unused. The sensor itself is a simple bridge type and the signal is amplified by an IC ...
irilinir's user avatar
0 votes
1 answer
54 views

How to feed pressure sensor MPX2050 correctly with input voltage?

How to power pressure sensor MPX2050 correctly with input voltage? I want to use the pressure sensor MPX2050 (data sheet: https://docs.rs-online.com/65ac/0900766b814a74eb.pdf) These are some values ...
ni_peter's user avatar
2 votes
0 answers
28 views

Fluid pressure sensor choice

I need to measure change in pressures in the range of 400-600 Pa. The sensors easily available are in the MPa range, for example 1.2 MPa. I was hoping to acquire a sensor in the upper limit of 1 kPa, ...
RocknRoll's user avatar
0 votes
1 answer
61 views

Help testing Pressure Sensors

I have a few ME600 Metallux sensors that I harvested from some discarded products. I want to build a project with these but would like to verify they work before getting too far. From the datasheet ...
D.Mendez's user avatar
0 votes
2 answers
73 views

Pressure sensor output not clear from datasheet

Planning to use the following sensor: https://shop.bb-sensors.com/Druck/Drucksensoren/ Part number SHOP 0391 0004-02M. I am planning to give 3.3 VDC to sensor. Pressure input will be 0 to 10 bar. It ...
Ankit Kumar's user avatar
0 votes
2 answers
207 views

How to calculate SPL change from a sound source to a listening position?

I need to know how to calculate SPL change from a sound source to a listening position. I already know the distance between the speaker and the listening position and also the SPL at the speaker.
parvin's user avatar
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2 answers
91 views

First-order filter between sensor and amplifier

I need to sample an analog pressure sensor (TSCDRRN015PDUCV) with very high accuracy. The pressure sensor is currently connected to an instrumentation amplifier (AD623) and then sampled by my MCU's ...
mdir's user avatar
  • 115
2 votes
3 answers
367 views

Quad op amp problems

I am using a pressure sensor with my Arduino Uno. Below is the amplification circuit for the sensor. The recommended reference voltage is 1V DC, but I had been using the 3.3 V of Arduino as reference ...
DribbleNibble's user avatar
1 vote
6 answers
542 views

Pressure activated switch for a light up LED straw? Similar to how a vape pen activates with air pressure drop when sucking?

I’m looking for a component that I can integrate into an LED straw so that when the user starts sucking on it the light turns on. What should I be looking at? I disassembled a Juul pod and see that ...
DevDevDev's user avatar
1 vote
1 answer
87 views

Asking experience for this flow-through pressure sensor: 26PCAFG6G - Honeywell

I have the following sensor:26PCAFG6G The output of the signal is a differential output from a Wheatstone bridge with 0 - 1 psi, or 0 - 70.3 cmH20 corresponding to 0 - 16.7 mV, I am using AD623AN for ...
Lactobacillus's user avatar
-1 votes
1 answer
276 views

Converting pressure to voltage [closed]

I am using an ifm PN2028 sensor and my sensor gives me an reading in mbar. Measuring range of the sensor is -12.5 to 250 mbar. The output of the sensor is analogue signal (4...20mA or 0..10V). The ...
Nehal Trivedi's user avatar
1 vote
1 answer
89 views

Pressure Transducer, Reverse and Shift Output of a differential amplifier

I am making a custom hydraulic brake for my sim racing setup. The original brake uses a potentiometer which outputs 3.3V at no brake pressure and 0V at full brake pressure. My pressure transducer, ...
Nick's user avatar
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-1 votes
1 answer
89 views

Connect analog sensor to PLC Omron CP1E-E30SDRA

I have a Wisner pressure sensor 0-10 bar with output 4-20 mA. I want to connect it with PLC Omron CP1E-E30SDRA which this PLC doesn’t have any analog input pin. I want to use this sensor to maintain ...
FahrullohMY's user avatar
1 vote
0 answers
35 views

Upstream pressure on solenoid valve

Does a solenoid valve consume more current when the pressure in the connected pipes is more than normal?
Meet_1605's user avatar
3 votes
2 answers
915 views

LM358 Differential Two Stage Amplifier Misbehaving (unanticipated output voltages)

Hello all and thank you in advance for taking a look at my problem. I have made a circuit which takes a differential voltage from a Wheatstone bridge (pressure transducer) and converts to an analog ...
Ryan Coleman's user avatar
1 vote
3 answers
313 views

Powering a pressure transducer

I am new to building testing setups. I have an Omega PX603-30VAC5V pressure transducer that I need to power. I have a Rhino Power Supply PSP24-060C that is listed as 24VDC/2.5, the pressure ...
LEL's user avatar
  • 11
0 votes
1 answer
88 views

Arduino not picking up analog reading 20 meter away from my pressure sensor

I’m new here. I just hooked up my 3-pin (5V, GND, Analog Out) XGZP6847020KPG pressure sensor right on my Arduino pro mini (at first it was not working, then I added a 10 kOhm resistor in parallel with ...
Chukwuma Collins Ezenyinwa's user avatar
0 votes
2 answers
172 views

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 ...
StayOnTarget's user avatar
  • 1,236
-2 votes
2 answers
60 views

Missing and insufficient data read from embedded BMP180 pressure sensor in motion [closed]

We're building an avionic system which will fly onboard on our rocket. And we have embedded BMP180 Pressure Sensor on our avionic system and we want to get smooth data when it is moving. Our BMP180 ...
hasan mert karabacak's user avatar
40 votes
10 answers
5k views

How can human finger pressure be measured?

I am dealing with a situation where a patient can only very lightly press his fingers / hand to signal what he / she wants. Speaking or eye tracking is not possible. The person is also not able to ...
tmighty's user avatar
  • 509
1 vote
1 answer
1k views

Transfer Function of a pressure sensor - what does it tell me?

so I'm trying to get a pressure sensor for a water pump and in the Datasheets they state different transfer functions within the series. I know that the transfer function describes the input and ...
incomingstorm's user avatar
1 vote
2 answers
834 views

Using Unidirectional Electret Microphone as Static Pressure Sensor

Hi all posted question on reddit but giving it a shot here too, I've been working on a board that requires a pressure sensor to detect when there is a differential air pressure or not. The board needs ...
andreas smith's user avatar
0 votes
0 answers
131 views

Interfacing a piezoelectric pressure sensor with a microcontroller

I'm working on monitoring injection molding process pressure inside the mold. The pressure range is expected to be between 1500 - 3000 bar. The mold temperature is expected to be around 100C while the ...
Harid444's user avatar
1 vote
0 answers
36 views

How to calculate the pressure and velocity of an ionised gas that is being impelled with magnetic pressure

Calculating the velocity and pressure of an ionised gas based on magnetic pressure and magnetic force. Questions: Based on magnetic pressure expressed on an ionised gas, how do I calculate the ...
Milton L. Rowlands's user avatar
2 votes
0 answers
704 views

Sound level meter using a microphone with ADC

I'm working with STM32F4, MAX4466 amplifier and a condenser microphone. In other words, Adafruit 1063. I want to get the sound level in dB unit. I know: Microphone sensitivity: 0.0063096 V/Pa ...
sabruri1's user avatar
7 votes
7 answers
5k views

What kind of a sensor does a arcade punch (boxing) machine have?

I am working on a project, where I have to measure the pressure exerted by a punch. I am trying to understand how an arcade machine works, and see if I could replicate the same mechanism in my project....
hegemon8's user avatar
  • 115
0 votes
0 answers
41 views

Durability of SMD MEMS pressure sensors in pure oxygen enviroment

I have a question regarding durability/reliability of COTS SMD mems pressure sensors in oxygen rich (basically 100%) atmosphere under pressure of 1bar/1atm and temperature around 20C/293K. Sensor ...
Felix's user avatar
  • 133
3 votes
1 answer
2k views

Where does this decibel equation come from, why a factor of 20?

For sound levels, it is said that decibels follow this equation: $$ dB = 20 \log(\frac{p_s}{p_0}) $$ Where \$p_s\$ is the pressure of the measured sound wave (in Pascals) and \$p_0\$ is some fixed ...
user525966's user avatar
0 votes
1 answer
248 views

What is the best way to sense if a climbing hold is being used by a climber?

I am designing a climbing wall game that gets what holds are being used as inputs. I'm currently planning on using a Kinect sensor to tell where hands are relative to holds and capacitive touch ...
Luke Tiday's user avatar
0 votes
0 answers
68 views

MPX2200DP signal value reversed when amplified with AD620

I am trying to measure differential pressure with MPX2200DP. According to the datasheet, the signal is linear and its value ranges from 0 to 40 mV. To be able to use the sensor properly, AD620 ...
Ayman hussien's user avatar
0 votes
0 answers
326 views

Pressure to current conversion

I was trying to convert the pressure values (in psi) into 4-20mA current. The range of pressure values I have chosen is between 0-10Psi. But according to the link given below the pressure from 3-15Psi ...
Ujwala's user avatar
  • 11
3 votes
2 answers
142 views

How to detect when the lid of a box is loosened (as soon as the screws are unscrewed)?

I have an aluminium box (dimension about 10 × 10 × 10 cm) with a lid closed with 4 screws (such as this: https://www.hammfg.com/electronics/small-case/diecast/1590). I would like to put a simple ...
Bau's user avatar
  • 33
0 votes
1 answer
362 views

Sensors - How to convert 4-20mA output to temperature and pressure values?

I'm dealing for the first time with two sensors, of pressure and temperature. Both have output of 4-20mA, then I'm using a 47 ohms 1% to convert to voltage. When flows 20mA, 20mA * 47 ohms = 940mV, ...
abomin3v3l's user avatar
1 vote
2 answers
50 views

Help identifying pneumatically activated switch with possible BMS

Some decent googling has yielded me no results. Attached are pictures of a component that allows power from a 3-5v power supply to flow when positive pressure is applied to one side or negative ...
Christopher Nolan's user avatar
0 votes
1 answer
35 views

Hydraulic pressure sensor for biological sample

I need to filtrate blood sample (About 2 ml). I have a tube (roughly 0,5 inches of internal diameter) attached to the filter cassette inlet. The cassette is plugged to vacuum pump. I would like to ...
Hedgehog's user avatar
1 vote
1 answer
105 views

Why shows the effect shown in the video below left-right asymmetry?

I made this video which shows what happens when I move the point of a wooden chopstick over my TFT-LCD screen, with firm pressure. It's remarkable that one can see that there is a difference between ...
Deschele Schilder's user avatar
0 votes
1 answer
391 views

Sensor Connection: DIN 43650 vs M12

Preface, I'm a plant engineer and my background is mechanical engineering. My current project requires me to find some pressure sensors for my compressed air lines and this is a pretty new territory ...
engineerswhocry's user avatar
0 votes
0 answers
60 views

How do you model acoustic waves underwater that are generated by an Nd:YAG laser?

In this paper on page 84 they show the following experimental setup: The array of receiver hydrophones are set up to record sound pressure waves sent by the transmitter hydrophones. In Figure 6....
user1068636's user avatar
1 vote
1 answer
888 views

How to read the following datasheet of a sensor?

I wanted to write about static and dynamic characteristics of the Honeywell pressure 19mm transducer. I found my sensors datasheet but could not find the following characteristics mentioned in the ...
Gagan G's user avatar
  • 31
0 votes
2 answers
164 views

Pressure sensor without using MEMS chips [closed]

I'd like to figure out how to make a pressure sensor for very low cost (essentially disposable), mass produced piece of medical equipment. The problem: this can't use any parts which aren't already ...
Alex I's user avatar
  • 3,481
0 votes
1 answer
373 views

Need help interfacing an ADC with a pressure transducer

I am trying to connect a pressure transducer which gives a 4- 20mA current output to an ADC which I believe can only take voltage inputs. How will I be able to read a current output from the ADC? Do I ...
Khushi Singh's user avatar