Hi Kjetil, Thanks for the update, I am working on a home science project- I have 5 children and the youngest shows some promise in the field- I wonder... is...
I have never built one myself, but a proton magnetometer sounds like a fun, fairly simple project. Google "DIY proton magnetometer" to get lots of links to...
THanks that is very cool will do ... From: Douglas Butler <sherpadoug@...> To: sensorforum@yahoogroups.com Sent: Tuesday, August 5, 2008 6:03:44 AM ...
Hello Folks, Got back to underwater sound exploration. I've adopted a part of on of the medical RF generators that I'm working on to drive the P319 transducer...
hi there! need help in determining what type of proximity sensor should i use if i want to detect incoming glass bottles (like in carbonated soft drinks)? ......
In my humble opinion, I think your best option is a capacitive type proximity sensor. These will respond to many types of mateials, and the commercial units...
I would add: * Reflective IR sensor. It can be less sensitive to small variations in distance between the bottle and the sensor. In the other hand, if there...
You could use light, a reflective service behind sends a light beam back to the transmitter, when a bottle passes the glass and soda would probably attenuate...
Hey everynody, I think this is my first query on this group and I really hope I get the required help from you intelligent people...!!! Maybe this is not...
Hey Steve, Thanks for giving a quick response. But, you know what there are some people who say that NS2 is not suitable for sensor networks. They are good for...
Hi, I was welcomed to this group to ask a question, (thank you!) I hope I haven't looked past a previous answer here or posted in the wrong place :) Ok, I need...
Is it possible to make an ordinary MOSFET a sensor without modifying anything (the gate, the materials, & etc.)? The ordinary MOSFET I mean here is just a...
Normally one starts with what you are trying to sense... Are you starting with a commercial molded transistor, or are you making your own die? If it is a...
Maybe there are 'smarter' analysis tools now, but years ago I found MOSFET's frustrating for predictive calculations - they seemed to have much wider variation...
Actually this is my project in school. My supervisor asked me to find out the parameter (temperature, light, pressure, etc) that can be sensed by an ordinary...
OH...a different picture emerges.... If you can see (with a microscope) the typical details one can see on chips, dies etc., it can be exposed to light....
Does anyone know how a bullet chronograph works? They seem to have two triangular hoops that the bullet passes through. But I can't see how the bullet is...
... I've seen two styles. One simply cuts through two wires with the bullet, starting and stopping a fast counter. Another, perhaps what you refer to, is an...
Paddle wheel sensors are not known for their accuracy. They also tend to be nonlinear, showing higher turns per liter at higher velocities than at lower...
Often, catheters have heating parts and they need irrigation – a constant stream of saline to prevent the surrounding tissue from drying out. The rate is...
my 2 semester project i started this semester is an RC blimp that we are going to make autonomous. part of the project involves recognizing that it is above a...
You could put an IR LED on the target pointing upwards and a phototransistor on the blimp. When the blimp sees the cone of light from the target, it descends....
If you could put a camera on the blimp you could optically center the target LED. You could also use acoustics. Because of weight I would put a pinger on the...
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