Questions tagged [pressure]

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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 ...
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1answer
32 views

Need advice choosing wiring configuration for combination pressure and temperature sensor

I am currently trying to purchase a combination temperature and pressure transmitter for a project, and it has an option to choose between a 3 wire or a 4 wire configuration. I have attached the link ...
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How to identify if a sensor gives a half bridge or full bridge excitation?

I'm not sure whether this pressure sensor gives a half-bridge or full-bridge excitation? Link to sensor: http://www.southeastern-automation.com/PDF/GESensing/Pressure/5000%20Series.pdf The one I'm ...
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40 views

How increase pressure sensor breadboard sensitivity?

I build a pressure sensor breadboard according the schematic. It works, but has quite low sensitivity - it shows some pressure only after big pressure is applied. Is there a way to increase ...
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64 views

What type of sensor connection would be the most suitable?

I have a pressure transducer with a 6 pin bayonet MIL-C-26482 male connector. I need to wire this connector with a 9 pin female D sub analog input connector and I am not sure how to do so. Schematic ...
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1answer
55 views

Manufacturable technology for force-sensitive button

I'm hoping to hear your perspectives on which force-sensing technologies would be most reliably and inexpensively manufactured at volume. The application is a pressure-sensitive button, as are found ...
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1answer
35 views

Voltage or Current Control with a Microcontroller for Pressure Regulator

I am wanting to control the flow rate of a pressure regulator (https://www.festo.com/net/SupportPortal/Files/505126/VEAB_2018-05a_8080669g1.pdf). My idea is to control this with a PWM signal 0-5v. ...
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2answers
57 views

Mechanical pressure contact

What I'm looking for is to be able to solder a mechanical pressure plate/arm to a PCB, where a plastic tab can be inserted. This contact (when connected) will complete the 3.3V/5V supply and turn on ...
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1answer
67 views

Questions about capacitive sensing

I'm trying to use the FDC1004 capacitance-to-digital and I have a few questions: Why do we (our fingers or another part of our body) act as the other conductive plate - don't we have a very large ...
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1answer
47 views

mpx5010 drifting

I have a MPX5010 pressure sensor that outputs a voltage proportional to applied pressure. Output is connected to an amp-op with gain=4 so my output is around 1V when no pressure is applied. That ...
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2answers
64 views

What type of pressure or weight sensors are thin? (Arduino or R-Pi) [closed]

I want to know if a person is in a walking path of approx. 10x1,5 meters. I thought on putting thin tables in the path and putting these sensors under each even table (to save some money): https://...
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35 views

What is the difference (in operation and performance) between a single-ended grounded CDC and a single-ended floating CDC?

For an undergrad project, I designed a capacitive pressure sensor that measures capacitance across two parallel plates and calculates a proportional amount of pressure (i.e. increased pressure = ...
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1answer
41 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 ...
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1answer
83 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 ...
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1answer
82 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 ...
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2answers
78 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)?
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1answer
95 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 ...
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1answer
63 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?
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1answer
132 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 ...
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2answers
35 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 ...
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2answers
59 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 ...
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1answer
176 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 ...
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1answer
301 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 ...
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2answers
176 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 ...
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1answer
98 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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2answers
228 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 ...
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2answers
69 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?
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1answer
61 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
35 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 ...
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2answers
238 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 ...
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3answers
675 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. ...
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3answers
881 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/...
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1answer
173 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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61 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. ...
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1answer
114 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 ...
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5answers
766 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 ...
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182 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 ...
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2answers
507 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 ...
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1answer
344 views

Honeywell Pressure Sensor TSCDANN150PGUCV, Amplifier circuit?

I have been trying to find amplifier circuits for this sensor. The datasheet has one on page 29 (pic attached). However as seen in the pic, the values for the resistors are not specified and we can't ...
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1answer
74 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 ...
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1answer
58 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 ...
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1answer
113 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 ...
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1answer
55 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
777 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 ...
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3answers
1k 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. ...
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1answer
150 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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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 ...
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3answers
503 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 ...
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1answer
879 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 ...
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0answers
385 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 ...