Tagged Questions

6
votes
3answers
79 views

How can I electronically measure tilt/compression of a pliers or alligator-clip?

I would like to electronically measure the width (really the compression/extension) to which an object's constituent blades have been stretched. Or alternatively, I could measure some other parameter ...
1
vote
2answers
75 views

Recommended Sensor? Distance - High Heat & Dusty

I'm after a sensor and I'm wondering what would be the best type for the following. Requirements - Accurately measure in the 5-10mm distance range, +/- 1mm. Sense small undulations in a surface ...
2
votes
3answers
85 views

Wireless communications for distance estimation (RFID perhaps?)

What I want to do it is measure the distance between two points/ devices which are constantly moving apart or together. The value for distance isn't really required I'd just be looking to have an ...
0
votes
2answers
77 views

SR04 As only Transmitter and Receiver

I have taken up a "follow me" robot as my course project ,i am taking the following approach: Use one SR04 ultrasonic transducer only as transmitter which will be with me. Another SR04 module only ...
1
vote
1answer
90 views

Tracking Flight of a Bee or a Wasp

I am planning to build a system that can track and present for me a path for the route a Bee or a Wasp has flown. What I am looking for is the tiny device can be placed on the back of an insect. Does ...
2
votes
4answers
197 views

Tracking pen within whiteboard surface

(Question in response to the comments.) I have a fixed flat white rectangular whiteboard of dimensions 1 meter by 0.5 meter and pen. I want to track the position of the tip of the pen within the ...
3
votes
2answers
250 views

Proximity sensor for height from snow covered ground

I will preface this by saying that I am a hobbyist not an engineer, which is probably why I even have to ask this question. Like the title says I want to know what type of sensor I can use to get the ...
9
votes
4answers
328 views

Methods to accurately move an object across a 2-D plane

This is the opposite/complement of my previous question, which concerned measuring the precise position of an object as it is moved/drawn by someone over a short duration. Assuming I use one of ...
10
votes
6answers
583 views

Ideas to measure 2D position of an object constrained to X-Y plane

I am working on a project, and an aspect has come up where I would like to measure (track continuously) the X and Y position of an object across a 2D plane. The object is moved by a person, with the ...
2
votes
2answers
523 views

How do I properly use Sharp GP2Y0A21YK0F sensor?

I've recently obtained Sharp GP2Y0A21YK0F IR distance sensor and I'm not sure how to make a proper circuit for output measurement, since I'm getting lots of noise. The only thing datasheet mentions is ...
4
votes
3answers
370 views

Detecting the placement of my finger on an invisible grid

Yes, a similar question was asked before, but mine is different. Let me explain what I am thinking of. Suppose I have an invisible 3 x 3 grid on my desk, is there any way I can detect which square I ...
2
votes
1answer
302 views

Sensors to detect and measure movement

I would like to know which sensors should I use in order to get measurement of a movement of my device (slow speed movement on a 2D plane, in cm or mm if possible). The goal is to find out if the user ...
4
votes
3answers
378 views

Alternate ways of measuring distance (lateral)?

I'm working on a micromouse, a small autonomous robot that traverses a maze. I need an efficient way to measure lateral distance to walls and I'm looking at the Sharp GP2D120 but looking at the ...
1
vote
2answers
188 views

Electronics for depth perception

What kind of electronics is need for depth perception of objects? I know that having 2 cameras is one method, but what about ultrasonic? Can I determine depth through that? In my project I am dealing ...
3
votes
2answers
952 views

Underwater Distance Sensing

I'm looking to measure distances from a submersed robotics project in the range of 1 to 20 feet (around there at least). However, the only options I seem to come across are rather heavy sonar modules ...
7
votes
7answers
1k views

How do I implement accurate distance measuring (to ground) on a plane-like UAV for heights over 10m?

How do I implement drone-to-ground distance-measuring for autopilot landings for heights over 10m? I found ultrasonic to be too inacurate, let alone GPS. Maximum height is 1000m, Vmax is 100 km/h, ...