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Questions tagged [force-sensor]

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0
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1answer
30 views

Which sensors can be used to feel breeze blowing by the robot?

Am faced with a situation where my robot needs to feel breeze blowing by over its artificial skin. While there exist many types of tactile sensors, nothing seems to fit the bill. I might abandon the ...
1
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2answers
33 views

Why is the contact force of the rigid-body robot model ks*xr?

In the paper "On Dynamic Models of Robot Force Control", which is written by Steven D. Eppinger and Warren P. Seering, there is a model 'rigid-body robot model'. The model is like below. In the ...
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3answers
81 views

How to detect writing on a chalkboard? [closed]

I've got an idea for a simple robot (with an Arduino or something similar) that will play noughts-and-crosses (aka tic-tac-toe) on a chalkboard, so that kids can play against it. It will use a couple ...
1
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0answers
12 views

Measuring torque of Vex gear shaft - highest accuracy for lowest price [closed]

I am seeking to collect data for my IB Physics IA (internal assessment). My question seeks to establish the relationship between speed and torque by adjusting gear ratios. (I am aware that gear ratios ...
0
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1answer
52 views

FPGAs and stepper motors for precision control

I'm looking at this Dexter robot that uses FPGA controllers to get really accurate position and force sensing on a cheap ($2K) arm. They say that the speed of the processor lets them get this accurate ...
1
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0answers
48 views

affordable and easy to use one dimensional force sensor or load-cell [closed]

In our lab we mostly use ATI 6DOF force sensors, but they are so difficult that I just want to kill myself every time I have to use them. The reasons I don't like them are: For the version I have (...
1
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3answers
116 views

Appropriate control scheme for gripper end-effector

I want to use a gripper end-effector (3 fingers, single actuator tendon-driven with force sensors in fingers) to grip and hold fragile objects such as an egg. I can not seem to figure out which ...
0
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1answer
56 views

Can a robot or mechanical part be programmed to exert a specific force

So I was thinking about projectiles that don't need a propellant like gunpowder I've seen coils gun but that's a little out my way. I was wondering if I know the force required to propel a object ...
0
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4answers
579 views

Detect physical touch/hit

I'm making a target to an outdoor robot competition. The target should detect if some of the robot got touched or got an hit automatically. and the target can get hit 360 degree. I'm searching ...
0
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1answer
423 views

6DOF robot arm: Velocity of end effector vs. joint velocities

I have a 6 DOF arm whose velocities I'm controlling as a function of force applied to the end effector. The software for the robot allows me to input either the desired end effector velocity or the ...
2
votes
2answers
113 views

What is the Name of the part I'm describing

I'm looking for a part that will do a particular function. It has to be able to move along one axis and tell me the force that is being exerted on it. Kind of how like a piston moves inside an ...
12
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5answers
19k views

How to detect when a stepper motor has stalled?

How can I detect when a stepper motor has stalled? A google search led me to some people who say that when the stepper motor stalls, the current spikes up, which is easily detectable with a Hall ...
16
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1answer
1k views

How does a six-axis force/torque sensor work?

I would really like a six-axis force/torque sensor for my robot, but I just can't afford one. I was thinking about making one of my own. I have experience using strain gauges, but I can't work out ...