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1answer
25 views

3D thermography setup

I want to know if its possible (yet) to sense the temperature throughout a given cylinder using non-invasive techniques? Such as ultrasonic or visual imaging etc. The temperature ranges from 250-450C. ...
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1answer
57 views

Shack Hartmann lenslet array design

What is the relationship between the number of pixels on a CCD that are dedicated to a lenslet array and the number of pixels covered by the focal spot from one lenslet array on the CCD? Specifically ...
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0answers
136 views

Circumference measurement using a capacitive sensor

I have a question which I hope someone in here can help me answer. Background: I’m building a device where I intend to use a stretchable capacitive sensor to define the radius change of an object. ...
2
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0answers
35 views

Quantum Efficiency Estimation

Might there be a way to do a rough estimate of the quantum efficiency of a photo-detector like a CCD or CMOS sensor based only on a picture taken with it? I've read papers and guides (like this one: ...
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0answers
31 views

How can we detect the property of matter by using mechanical waves or IR or any other way

First of all, I am in high school[to tell that I don't know much physics]. And the second thing is that, I am not sure whether this question is specifically related to physics. What I want to ...
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0answers
33 views

The needs of photonic senseor for biomedical applications

I am doing a literature review on the topic mentioned in the title. When I write the review, I found myself a contradiction. Just want to listen to opinions from others :P Nowadays, the development ...
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0answers
58 views

Modeling the probability of a photodiode measuring photons targets at a neighbor

In current digital cameras, sensors are arrays of photodiodes which "transform" photons energy to electrons. I am aware that the probability of a photon to generate an electron is modeled by a Poisson ...
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0answers
71 views

Reorienting a sensor axes according to particle displacement directions

Consider a sensor which is located inside the solid substance. This sensor is capable of detecting the substance oscillations along each of the three axes (usually orthogonal, but generally, any non-...
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0answers
39 views

What does this sentence about centripetal force mean

I'm reading this paper about sensors and I came across this paragraph: In this paper, our objective is to enhance the area coverage of WMSNs by 1- turning sensors to the correct orientation and 2-...
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0answers
20 views

Transmittance of yellow light through blue substance

I am performing an experiment in which I flash an LED-light through a substance with different opacities and do voltage measurements over a photoresistor on the other side. When I decrease the ...
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0answers
11 views

Blocking Window Distance Estimation in sCMOS Sensor setup

I am trying to establish an appropriate distance between a spectrograph output window and a CMOS sensor. The spectrograph creates a focussed image on the CMOS sensor, but I need to block out some of ...
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0answers
114 views

How does a flex sensor work?

I was reading an article glove controlled hand using flex sensors. I know that a flex sensor is a type of variable resistor, but I want to know it's principle of operation, like does it work on ...
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0answers
40 views

compressed/compressive sensing, sensor placement

Given: I have a beam fixed at one end and free at the other. It obviously results in vibrations due to the disturbances in the environment or when induced. This system can be represented using a ...