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Questions tagged [pressure]

The tag has no usage guidance.

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1answer
32 views

Pressure sensor for a 3d object for an arduino prototype [closed]

I am not an electrical engineer but an industrial designer, and I work for a SexTech company that strives to create sophisticated sex toys for women. We are currently trying to prototype a vibrator ...
0
votes
1answer
37 views

Understanding the MPX2053 Pressure sensor

So I am a bit confused as to how I would operate a pressure sensor whose pressure range is between 0-50 kPa because the moment I remove it from the packaging and expose it to the environment, it will ...
-3
votes
1answer
70 views

Detecting a feather touch [closed]

New to the forum here, but I have a need to detect a feather touch. Is there any sensor that is recommended? This will be in a vibrating environment, so audio is probably out of the question. Is a ...
2
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2answers
68 views

LED light bulbs in low atmospheric pressure

I have these (https://www.amazon.co.uk/gp/product/B01DBOKZVK/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1) LED lightbulbs. Can I use them in a pressure of ~30kPa (21" Hg vacuum)?
0
votes
1answer
31 views

Problem with Vout of Honeywell ASDX Analog pressure sensor

Few months ago I decide to bought an absolute pressure measure system using a Honeywell ASDX differential analog pressure sensor (Model: ASDX ACX 030PAAA5). The datasheet of this type of sensor ...
0
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1answer
58 views

Non-inverting op amps with sensors [closed]

I would like to know if there's a negative implication of using non-inverting op amps with sensors, for example a pressure sensor? Would it be a better option to use an inverter, and if it is, why?
0
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1answer
30 views

Pressure transducer being read using Labview

I understand this is not a typical question for this forum, and that NI Labview forum would be better (I posted there too), but I am hoping that someone who is proficient in Labview will see this. I ...
0
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2answers
34 views

Question about pressurization and introducing air into a small chamber

This is probably very easy to answer, but I'm working on a project where I need to heat a chamber (insulated Styrofoam container), and my option to heat it is essentially a hair dryer, as a heat gun ...
0
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2answers
44 views

Suggestions on conductive materials for textile capacitive pressure sensors

I am doing preliminary research for my thesis. The thesis involves textile capacitive pressure sensors. I am trying to find out more about how the type of conductive material used affects the ...
0
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1answer
69 views

How to measure internal battery pressure?

Which unit is used to measure internal battery pressure? And how can it be measured? (Does it change with battery age somehow?) The internal battery pressure increases at high charging capacities ...
1
vote
1answer
144 views

Reading values from Force Sensitive Resistor - Arduino

I am trying to read the values from a Force Sensitive Resistor with Arduino. Actually, I am already reading them, but it only works if I use a 10 Ohm or lower resistor and it really heats up. (See ...
2
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2answers
101 views

Is the HP206C really so precise?

I'm looking for barometer sensors for use in Arduino projects. One of the items I consider is the HP206C (at Reichelt, Germany). The vendor contradicts himself a little bit when he mentions 0.1 m and ...
0
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1answer
88 views

Help me identify a sensor I got from a PCB

I am currently working on a blood pressure monitoring system(for a class) and I was handed an old, non working wrist blood pressure monitor to salvage any components I could. So I tore it down, took ...
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0answers
40 views

Pressure Tolerant Rotary Potentiometer

I am looking to use a small potentiometer for servo position feedback inside an oil filled pressurized enclosure. I am unsure if the given potentiometer will operate in these conditions. I see various ...
1
vote
2answers
156 views

Pressure/Voltage analogy [closed]

Imagine a hydrocarbon being pumped through a flow line Now imagine if a valve downstream of the pumps was shut and then you were pumping against pressure ! Ok, this will cos a rupture of your ...
1
vote
0answers
13 views

MPL3115A2 reads a lower pressure

I found a similar question here, but for that user the difference between readings are very small (about 360 Pa) and within the ±400 Pa indicated in the datasheet. In my situation, instead I read 979 ...
0
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1answer
49 views

Pressure of an electric contact and resistance

Ok guys, my question is simple, how does the pressure of an electric contact influence the resistance of the human skin?
1
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1answer
58 views

How is a 'ribbon controller' called in electrical terms?

On some synthesizers, there is a strip called ribbon controller, to wipe your finger over and it detects pressure. It's a bit similar to a mobile phone's LCD touch panel, except that it is one-...
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0answers
34 views

Move ions in electric field against pressure

I am looking for the right equations to get an idea of how strong an electric field has to be if I want to draw ions through an ideal conducting membrane. The problem is that there is a big pressure ...
3
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0answers
31 views

Successor of VTI's SCP1000 Family of Absolute Pressure Sensors

VTI's SCP1000 product family is a range of ceramic capacitive pressure sensors that have reached the end of their lifespan. It has been suggested that certain sensors designed by others (like Bosch ...
0
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2answers
164 views

No Acknowledgement from slave device

I am using a FTDI's UM232H usb-i2c adapter to communicate with MAX6615 temperature monitor device and DLVR pressure sensor. I developed a I2C routine to talk to these above mentioned devices. I can ...
0
votes
3answers
374 views

Measure the pressure on a push button

I am looking for a way to measure the pressure on a push button when it is pressed. I intend to save it in flash of a microcontroller. Please let me know if you know any device which could be useful. ...
0
votes
3answers
547 views

Measuring negative pressure with a raspberry pi and I2C Pressure Sensor

I want to measure negative pressure which is generated by a diaphragm / membrane pump with 0,5 Bar (according specification). I am not sure if such a sensor as this https://sensing.honeywell.com/...
0
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1answer
109 views

PCB material that does not swell from water absorption?

We designed a microchip to sense high pressures under water. The chip senses pressure through a thin diaphragm that deflects and a corresponding piezoresistor circuit that measures the deflection. For ...
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0answers
56 views

Sit counter or pressure counter?

We have to count how many times a particular chair/seat has been "sat upon" - how would one go about this? Brute force approach suggests put together a pressure sensor to flip a digital counter. ...
1
vote
1answer
95 views

Detect if bud earphones are in ear

I have bud earphones, through which I am listening to music. Air pressure in my ear (after inserting the earphones) is presumably slightly higher than the pressure of the surrounding air outside of my ...
2
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5answers
456 views

Waterproof and pressure sensor

I'm designing an equipment that will be in a rural area exposed to heavy rains. I already got an IP67 rated enclosure with IP67 connectors and it's working as expected. I need to measure the ambient ...
0
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0answers
152 views

Pressure Transducer to complete circuit

I'm using the Adafruit Feather nRF52 to build the HIDScan sketch which essentially allows completed circuits to transmit keys over bluetooth. I have a switch that connects from pin A0 to GND, and ...
0
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2answers
355 views

two or more SDP610 Pressure sensor Interface with Arduino uno using I2C

I have interfaced one SDP610 Pressure Sensor using I2C with Arduino Uno R3. Now I want to Interface more than one sensor with same controller(uno board). I don't find any higher or lower address in my ...
0
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1answer
204 views

Honeywell Pressure Sensor TSCDANN150PGUCV, Amplifier circuit?

I have been trying to find amplifier circuits for this sensor. The data sheet has one https://www.verical.com/datasheet/honeywell-pressure-tscdann150pgucv-1798831.pdf on page 29 (pic attached). ...
1
vote
1answer
68 views

Force sensor on uneven shape

I'd like to measure the force that a human leg impacts on a knee brace during normal gait. I have a problem in finding a suitable sensor for the job... The leg (and hence the brace) are not flat at ...
0
votes
1answer
50 views

What are the range of pressure values we receive from an ultrasonic sensor?

While trying to receive ultrasonic waves from a Sonar using a pressure transducer what are the range of values of pressure I can get. I need these values to buy necessary equipment for doing the ...
0
votes
1answer
98 views

Will reed switches break in various weather conditions

I will be using an OKI ORD-9216 14mm reed switch in my mailbox, which is outside of my house. Below is a picture of a reed switch. I am worried to whether the reed switch's glass will crack due to ...
0
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1answer
48 views

Pressure sensor port as vacuum means?

Pressure sensor used in my project is MPXV5010DP. Here is the datasheet In the datasheet, It is noted that port-2 should be kept as vacuum. What is mean by vacuum? Should I have keep port-2 as open ...
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2answers
372 views

4x4 Pressure Sensor Grid Pin Saving

I'd like to make a 4x4 pressure ( force resistance) sensor grid to use with an arduino. But 16 sensors sure need a lot of pins. During my research on this topic I stumbled upon a couple of ...
0
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3answers
914 views

Arduino + Pressure sensor

I come from mechanical engineering background and have little hands-on experience with Arduino and electronics. I would like to connect a pressure sensor SX01DN with Arduino for reading the values. ...
-4
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1answer
127 views

Can 16,000 volt with around 3.5 to 5 amps be enough to heat a wire to 1400F [duplicate]

If i push 16,000V through a nichrome 10 gage wire with only 3.5 to 5 amps csn that pressure be enough to heat the wire up to 1400F
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0answers
58 views

Can I reach temperatures of 1400F In 2-4 Milliseconds With a 12 Gage Wire? [duplicate]

I need a thicker, more sturdy wire that can put in a high PSI environment and still reach temperatures of 2-4 millisecond. The problems i see is thicker wire don't have as much resistance and a ...
1
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3answers
467 views

Reading data from digital pressure sensor (Pressure sensor SPD100GD)

We need to read the digital output from a Pressure sensor SPD100GD with an AVR micro (Atmega128). According to the datasheet we must estimate transmission speed. The datasheet is saying: The ...
1
vote
1answer
558 views

How to use 4 pin Honeywell NBP Series Pressure Sensor give 1 pin analog output?

I am trying to use HONEYWELL NBPDANN100PAUNV Pressure Sensor. I found a example at Interfacing pressure sensor to arduino As this example says as instrumentation amplifier based on quad opamp ...
2
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0answers
297 views

Prototyping a smart boxing glove: Where to find a “wearable” force sensor that can detect up to 2000 psi

I am working on prototyping a "smart" boxing glove that can track the movement (jabs, uppercuts etc.) and punch force. I am having a bit of trouble sourcing a pressure (force) sensor that is small ...
0
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2answers
211 views

AD620 //Output saturation//Data acquisition

I am working on a data acquisition project ,I have to get data from a pressure sensor of 5 pins(similar to a load cell) Using AD620 inst.amplifier. I have used a gain set resistor = 390 ohm so gain ...
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votes
1answer
110 views

How to power this pressure sensor? [closed]

So guys, I have a pressure sensor and I want to measure the pressure on a water tube. The things is, I can't find ANYTHING about it on the internet, not a single datasheet. It's only 3 wires, will ...
1
vote
1answer
155 views

Would a small pressure sensor be orientation dependent?

I'm implementing the BME280 (datasheet here) into one of our systems. My coworker swears that pressure sensors are orientation dependent. I've found from online documentation that this is true for ...
0
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1answer
105 views

differential pressure sensor gives oscillated result

I'm trying to measure water pressure of water pipe by exactly replicating this : http://www.practicalarduino.com/projects/water-tank-depth-sensor When I tested the sensor (by leaving both inlet free, ...
0
votes
1answer
138 views

Step voltage down via voltage divider, then grab original voltage output

I have a pressure sensor that takes 5v and outputs a voltage based on pressure, however the input that I read cannot exceed 1.8V due to limitations of the board that I am using. Thus I was wondering ...
0
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2answers
58 views

Building compliance requirements for IOT sensors

I want to install a differential pressure sensor, (datasheet), in a clients building and leave it running for a few months. The sensor will be powered by a gateway, that will be approximately 50m ...
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2answers
417 views

Pressure sensor unstable after Arduino power off/on

I am using my Arduino Uno to read analog sensor values from this pressure sensor. I have the Arduino powered with a 12V power supply from the wall. I'm using the 5V from the arduino for the LCD and an ...
0
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2answers
356 views

Using two pressure sensors with same address over I2C

I'm a novice programmer and I have recently purchased the SparkFun Pressure Sensor Breakout - MS5803-14BA and used it to take pressure readings quiet easily with the sample code provided and an ...
0
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1answer
332 views

Inconsistent readings using Pressure / Altitude sensor (MPL3115A2)

I have two pressure sensors (MPL3115A2) with each connected to a Particle Photon, the sensors are placed next to each other at the same level. In barometric mode, one sensor reads 95043 Pa, while the ...