Questions tagged [sensors]
The sensors tag has no usage guidance.
12
questions
14
votes
3answers
5k views
Can I use a ultrasound sensor to measure water level?
If I use an ultrasonic sensor will it detect the water level?
I was thinking about a product to read water level on water boxes (common in Brazil). I researched about instrumentation for this ...
24
votes
3answers
83k views
Calculating pitch, yaw, and roll from mag, acc, and gyro data
I have an Arduino board with a 9 degree of freedom sensor, from which I must determine the pitch, yaw, and roll of the board.
Here is an example of one set of data from the 9-DOF sensor:
...
7
votes
3answers
8k views
What is Radial and Thickness Mode Vibration in a Piezo Electric Ceramic Disc Transducer?
I am trying to use a Piezo Electric Ceramic Disc Transducer for ultrasonic sensing measurements for fluid levels. A Piezo Ceramic Disc with a Resonant frequency of 215 KHz or 1 MHz is under ...
28
votes
10answers
6k views
How to quantify martial arts strikes?
Subtitled: Ah, strong am I with the Force, but how do I measure it?
With all due apologies for paraphrasing Yoda, I am trying to measure a force. Fortunately, it's an easier force to measure than ...
9
votes
5answers
762 views
How can I measure the thickness of a sedimentation layer in a closed tank?
Biogas slurry often contains sand and grit and organic matter that eventually sediments. Clearing thetank from sedimentation is expensive (plant downtime, additional equipment) and dangerous. So it ...
9
votes
3answers
1k views
Can the structural integrity of bridges be measured in real-time for safety?
As a follow up to this question, I wonder if structural integrity monitoring information can be provided real-time and to a sufficient degree that safety decisions can realistically be made from the ...
2
votes
1answer
502 views
MQ3 Alcohol sensor
I have done my project on alcohol detection for drivers, but I don't know the minimum and maximum distances between the alcohol sensor and the driver.
What are the maximum and minimum distances?
3
votes
2answers
1k views
Is the reliability of automotive sensor technology impeding the success of self driving car?
The reality is that sci-fi KITT is almost here.
Recently I read articles Delphi car driving itself across the country as well as Tesla cars will be self-driving this summer. As of 2013 four states (...
10
votes
6answers
12k views
Distance sensors with accuracy of 1 mm?
I am making a device for measurements. I would like to measure the distance within accuracy of 1 mm. Range could be 2 cm to 15 cm . I looked at Proximity Sensors but the readings displayed by these ...
9
votes
1answer
296 views
Sensors / processing algorithms to emulate a human's sense of smell
A lot of research has been devoted to creating electrical devices that emulate biological sensors, including:
Visual: Cameras, color/light intensity sensors
Auditory: Microphones, ultrasonic sensors
...
1
vote
1answer
80 views
How to measure electro-mechanical coupling?
I have mounted a piezo-ceramic ultrasonic transducer (MODEL # SMD10T2R111WL, Vendor Website: PIEZO CERAMIC DISC 10X2MM R 215 KHZ WIRE LEADS) under a plastic tank using epoxy. Please see the picture ...
-1
votes
3answers
210 views
Would it be hard to create a camera that could see the whole electro-magnetic spectrum? [closed]
Usual cameras can capture the visible spectrum, and some others the infra-red spectrum. But the world is so much than that, isn't it? I wonder why cameras that could see a larger electro-magnetic ...
