Questions tagged [sensors]

Questions related to sensors or sensor-based systems and their applications.

Filter by
Sorted by
Tagged with
0 votes
0 answers
29 views

Using Relay and contactless water level sensor to switch on or off motor pump

I have no prior experience related to electrical projects and I am having confusion about which type of relay and how to connect relay, contactless water level sensor and motor pump. So basically I ...
Basmati_Reis's user avatar
0 votes
0 answers
23 views

Maximize SNR of RGB IR light-sensor for certain LED wavelength

I have a light-to-digital sensor (TCS34001) that measures intensity in four different bands (R, G, B, IR) and a red LED (ASMT-MR00-AHJ00) that I want to detect. Their spectra look like this: (ignore ...
gnarflord's user avatar
0 votes
0 answers
39 views

The Effect of Accelerometer Position on Modal Analysis of a Cantilever

We have obtained the first two vibration modal frequencies of a composite cantilever (33 gm). We placed the accelerometer (3.4 gm) near the fixed end and the two frequencies were F1=30 Hz and F2 = 256 ...
Rehan Khan's user avatar
0 votes
0 answers
12 views

What pressure sensor and how should it be installed on to the medical ventilator to get the pressure flow graph?

I'm currently building a project named camshaft mechanism medical ventilator. One of the objective of my project is to get the pressure flow graph from my user. I succesfully build my camshaft. ...
brian's user avatar
  • 1
0 votes
1 answer
74 views

How to convert the Differential pressure in Pa to flow rate?

I am using SDP32 sensor and got the differential pressure value of the air. I want to convert this value to flow rate. What is the equation for that?
Rim's user avatar
  • 1
0 votes
2 answers
121 views

Measuring Pressure of a Press Machine

I am designing a heat press and need pressure feedback of the force or pressure being applied to the product. I need to measure the pressure between to press plates on a hydraulic press. I would like ...
Capo's user avatar
  • 1
0 votes
0 answers
22 views

What are the Sensors/Flow Meters Required for Automated Fault Detection & Diagnosis in a HVAC system?

Automated fault detection and diagnosis is a very promising area of implementation to reduce energy consumption by buildings. A lot of research has been done in this area, but most of it is about the ...
da_vinci_3864's user avatar
1 vote
1 answer
73 views

Thermal cameras - what is the practical significance of NEDT in relation to accuracy?

(Hi, I put this question on the elec eng. stack exchange and someone suggested I move it here. This question has also been edited to make the actual question clearer and fix an error). Using accuracy ...
Shara's user avatar
  • 11
1 vote
1 answer
51 views

Can an active pixel (CMOS) image sensor work without the lenses?

Hello I was wondering if a CMOS image sensor will work without its lenses, I want to install a pinhole instead of the lenses, I want to simulate a sun sensor with the CMOS image sensor of an ESP32-CAM,...
Jogarama's user avatar
0 votes
1 answer
49 views

What is the actual detection range of AMG8833 thermal imager sensor?

I am using AMG8833 thermal imager sensor for my project. I have read in datasheet that its field of view is 60 degrees and it can detect source till distance of 7 meters. But I want to know what is ...
Jashanjot Kaur's user avatar
0 votes
2 answers
66 views

Sensor to measure distance with high precision

I am making a machine which, from the curve of the top of a violin, cuts the feet of a bridge. I thought that a sensor attached to a motorized rail could take precise measurements of the distance from ...
divinelemon's user avatar
1 vote
1 answer
90 views

How to measure linear displacement in real-time?

I'm trying to sense the position and orientation of an object in real-time using an Arduino. I'm able to measure orientation with ease using a 9-DOF IMU. I cant seem to figure out how to measure ...
Osz's user avatar
  • 13
0 votes
0 answers
24 views

Is it necessary to polish Glassy Carbon Electrode using alumina slurry and diamond slurry? Can I use it without polishing it?

I wanted to use glassy carbon electrodes for my research study. But it is necessary to polish it before use?
May 's user avatar
  • 1
0 votes
2 answers
54 views

Wheel position sensor for precise aiming at a stationary target

I asked a different question a while back that led me to realize the hardest part of my project, position sensing. I had an idea and wanted to know if I'm trying to reinvent the wheel. Specifically, I ...
neural's user avatar
  • 103
2 votes
1 answer
67 views

Does MEMS/Optical Gyroscope record Earth's Rotational and revolutional angular velocities

I am using a 3 axis gyroscope (Android device) to record angular velocities using a sensor data logger application. When the device is placed stationary, the gyroscope recorded the following values: ...
Akash Sagar's user avatar
0 votes
1 answer
71 views

Rotation of Radar Axis in 3D plane

I'm working on a sensor fusion application. In our vehicle, 4 radars (fixed, non-rotating radars) are placed at 4 corners of the vehicles at 45 degrees with respect to x, y and z-axes of the vehicle. ...
Akash Sagar's user avatar
0 votes
1 answer
79 views

Tips on searching for components?

I'm a mechatronics engineer, and a big part of my job is searching for the right off-the-shelf (mostly mechanical) component for a specific purpose. It can be anything from vacuum pumps, flow meters, ...
Achintya Agarwal's user avatar
0 votes
0 answers
86 views

What should be considered in terms of non-linearity as a percentage of f.s.d?

A thermocouple used between 0 and 500 °C has the following input–output characteristics: (a) Find the equation of the ideal straight line. $$ K = \frac{27388 \hspace{1mm} \mu V} {500 \hspace{1mm} ^\...
kile's user avatar
  • 101
0 votes
0 answers
34 views

Pitot and static port placement - How to choose the ideal location

Forgive the this topic placement as it might be similar to other older ones (Although I a bit sure that the main contents might be different than other older ones). In the upcoming days I will have a ...
Theodosis Koutsoukos's user avatar
0 votes
0 answers
27 views

How to select a burst frequency of an Ultrasonic sensor?

I am using an Ultrasonic sensor to detect obstacles for adas applications. Is there a way to find the optimal burst frequency? experimentally or theoretically? for object detection. How does changing ...
Mehul Acha's user avatar
0 votes
0 answers
48 views

Center of gravity offset for accelerometer and gyroscope readings

I am working on a 6DOF IMU that contains a 3 Axis Accelerometer and a 3 Axis Gyroscope. I am building a project to plot the postion and orientation of the turret/cabin in a crane in 3D space. The IMU ...
Akash Sagar's user avatar
1 vote
1 answer
35 views

How to remove ground detections of an ultrasonic sensor place in the front bumper of car? [closed]

I am working on a project to fuse the sensor information of 4 ultrasonic sensors place on the front of a car in the bumpers. The detections from the sensor would be generated not only from the ...
Mehul Acha's user avatar
0 votes
1 answer
45 views

Will a security camera or tiny hidden camera lens cause a colored dot appear on an IR detector card? Why or why not?

Will a security camera or tiny hidden camera lens cause a colored dot appear on an IR detector card? Why or why not?
notthatpaul's user avatar
0 votes
0 answers
29 views

What kind of sensor can I use for measuring the rotational position and speed of a link in a fourbar mechanism?

I work in mechanism circuit breaker design. We typically use mechanism that utilize small Θ and we therefore measure using linear travel potentiometers. On this new design, I need to measure a larger ...
Georgije Stanisic's user avatar
0 votes
0 answers
24 views

Volumetric water content and EC measurement by Teros 12 sensors from Meter

We are doing Mid scale experiment in lab with soil. We are using Teros 12 sensors from Meter Group to measure the volumetric water content (VWC) and electrical conductivity (EC) of the soil. I wanted ...
Deepesh Karmacharya's user avatar
0 votes
1 answer
92 views

Sensor fusion for IMU

I'm working with MPU-6050 sensor with Raspberry Pi 4. I can read acceleration and gyroscope raw data from the sensor. However I want to get yaw, pitch and roll angles from these data. I tried to ...
Ahmed Osama's user avatar
0 votes
1 answer
35 views

Process this output of an off-the-shelf pressure sensor

I'm a software engineer working on theoretical things in my daily work. Lately I wanted to connect a pressure sensor, like this one, to a digital device that I can program, so that I can constantly ...
user7088941's user avatar
0 votes
1 answer
30 views

Detecting laser spot positon

I have a pulsed laser (532 nm, 250 ps) operating with a period of 20 μs. I need to detect the location of the pulses in a 100 × 100 mm area with 5 mm resolution. Being a complete novice to the field ...
Thomas Holle's user avatar
0 votes
1 answer
106 views

DIY linear position sensor IR switch - bad results

I have a test rig whereby a shaft (an M4 threaded bar) is being pulled ~11.5mm by a mechanism (rather not detail that) in about 20ms. I want to plot the movement of this shaft vs the mechanism pulling ...
KevInSol's user avatar
  • 117
0 votes
1 answer
35 views

How do I know if I can cut pressure sensors into different shapes?

I am building an imaging platform that requires the application of two pressure sensors shaped into a "hollow" semi-circle, pretty much C-shaped. To do this, I thought of buying the ...
user7077252's user avatar
0 votes
1 answer
324 views

Understanding data received from sensor (Twos complement)

So I use accelerometer to get acceleration data. However, I have trouble understanding data. I have been reading manual, but it does not help me: ...
Jokubas11's user avatar
0 votes
0 answers
39 views

Inaccurate flow rate measurements of an engine diesel fuel due to change of its viscosity

I am measuring the volumetric flow rate of a diesel fuel using "Turbines" flow meter, both in the supply and return fuel lines of an industrial diesel engine (Caterpillar 3512B – coupled ...
AEW's user avatar
  • 103
0 votes
2 answers
31 views

Need a solar powered mechanical motor? that moves a leaver up and down low force and little distance on day/night

I'm planning to use barrels full of water to make a drip watering system. I can make the water controls from a pretty easy toilet fill&flush valves and balance it so it needs a very light push on ...
Rachael Zacc's user avatar
1 vote
1 answer
48 views

Applications of CO$_2$ sensors [closed]

I am working on a project where I am creating a new type of CO2 sensor. (I can't give details on the functionalities). I am looking for applications to showcase the capabilities and the usefulness of ...
Anwar Elhadad's user avatar
0 votes
1 answer
36 views

how would I identify when and who enter through a doorway, assuming they can have part of the technology on their person

I am working on setting up a system that senses when an object goes though a door. I've seen things using lasers or induction. I have a set of objects smaller than 1 square inch. I just want to know ...
selacey's user avatar
0 votes
1 answer
950 views

Calculate Vibration Velocity and Acceleration from Triple Axis Accelerometer

Looking for very specific support developing a simple Python script to take the time series X,y,z tuple readings from a triple axis accelerometer and output a meaningful measure of vibration for ...
Mindcycle.dev's user avatar
0 votes
2 answers
54 views

Measuring angled surfaces with a lidar

I have been trying to create a sensor that detects when a golf club hits a golf ball. My idea was to have a lidar sensor to continuously poll the head of the golf club, and return a positive ...
vernal123's user avatar
0 votes
0 answers
20 views

Using an NIST Calibrated Thermistor Meter with uncalibrated or unknown probes

Background: I recently purchased a NIST calibrated thermistor meter for measuring temperature at work. This Digisense (20250-94) meter came from a seemingly reputable company, Cole Parmer, and we ...
user391339's user avatar
1 vote
1 answer
175 views

DIY CO2 sensor calibration

Summary: Are there any worthwhile methods for rough calibration of CO2 sensors without proper chemistry lab equipment, calibration gas, or other known-good sensor available? It would only be used as ...
rockfort's user avatar
2 votes
0 answers
96 views

How do you generate an impulse signal in a mechatronic system?

Background: I have a piezoelectric force transducer that I am using to measure the force produced by a combustion reaction in a tube. The issue is that there is a lot of ringing that occurs during the ...
Ben's user avatar
  • 21
1 vote
1 answer
426 views

How to find out the sampling rate of an acceleration sensor?

In the sensor catalogs, I cannot find this field. They only depict the frequency response range. For example, Bently Nevada's sensors. How we can find out their maximum sampling rate?
Ali Hosseinli's user avatar
0 votes
1 answer
44 views

What type of sensor do you think is best for use in liquids? [closed]

I am looking for a level controller that's going to be used in an industrial setting. My main concerns are high level of precision and low total error band. Do you have any recommendations? Both types ...
Nikos_Pap's user avatar
0 votes
1 answer
38 views

Question related to pyroelectric sensor

Is it possible to detect human motion by using a single pyroelectric sensor? According to me we can't do so using a single sensor.
MechaTrex's user avatar
  • 395
0 votes
1 answer
812 views

Obtain velocity by using accelerometer data

I have an accelerometer sensor, which obviously measures acceleration along the $x$, $y,$ and $z$ axes.What I would like to do is to obtain the velocity along these axes by using the accelerometer ...
Teo Protoulis's user avatar
1 vote
0 answers
146 views

Why we are using PT1 Damping in automobile Sensor values?

I got to know that most of the automobile manufactures are using PT1 Damping (concept like raising Linear/ PT1 failing time etc. ...
user2986042's user avatar
0 votes
1 answer
84 views

Homemade metal cover for Arduino temperature sensor

I have one ds18b20 temperature sensor for this project, but I don't have the metal cover for it like shown below: So if possible I asked here to have your intelligence for finding some homemade ...
Soheil Paper's user avatar
4 votes
1 answer
513 views

Alternatives to laser line?

I'm trying to project a very thin line at a low angle over some surface defects (peaks and troughs). The scale is ~20mm square, but the defects can be sub-mm (0.2 - 1.0mm). I am currently using a line ...
John's user avatar
  • 165
5 votes
1 answer
92 views

Is there a way to estimate whether the driver or co-driver picks up the smartphone?

First of all, as I am new in this very corner of stack exchange please help me by selecting the correct tags! I'm interested in finding an alorithm, that estimates wether a phone is picked up from the ...
Dennis Heinig's user avatar
1 vote
4 answers
241 views

Calibrate a sensor using another, already calibrated sensor

I have two light sensors. Sensor A is factory-calibrated and gives a linear response to the light at a certain wavelength. Sensor ...
adrienlucca.net's user avatar
0 votes
0 answers
27 views

motion tracking (or position tracking) with tilting

I'm looking for a sensor or a tool for tracking motion on a surface similar to Ultrasound probe, for a relatively small movement, about less than 30cm, and it needs to be able to tilt. standard ...
A-_-S's user avatar
  • 101

1
2 3 4 5