Sensor Based Feedback Systems

Matching

a.	Sound Sensor	f.	Line Tracking	
b.	Light Sensor	g.	Optical Shaft Encoder	
c.	Ultratonic Sensor	h.	Thermal Sensor	
d.	Touch Sensor	i.	Humidity Sensor	
e.	Limit Switch	j.	Chemical Detection Sensor	

____	1.	A homeowner wants to install a robotic system in his home that will automatically open a skylight and turn on a fan in his greenhouse when the moisture level of the atmosphere is above a certain level. Which sensor would you recommend for this job?

____	2.	A robot needs to go on its daily mission of patrolling the streets of Baghdad, Iraq. It will be tele-remote operated from the back of an Army truck. Its mission is to examine piles of junk and debris along the side of the road to determine if there is a hazard hidden inside the pile. Which sensor do you recommend?

____	3.	A robot within a work envelope has a large range of movement. You wish to restrict that range for safety sake. Which sensor would you recommend?

____	4.	A robot on an assembly line is to pick up a completed part when it reaches the end of the line. The part arrives from various stations, where quality control humans inspect the piece. This can take a varying amount of time to inspect, and so the robot must wait until the piece arrives and cannot be set to a specific time. Which sensor do you recommend?

____	5.	A manufacturing firm has robots working on an assembly line. One such robot will pick up a PC board that has electronic circuitry to be soldered. Once soldered, the robot will place the board into a test mechanism and test the circuit. If it is in working order, the circuit will emit a long audio signal through the speaker system, and the robot needs to place it on the line to proceed to the next station. If it does not, then the board needs to be placed in a hopper for someone from quality control to inspect. Which type of sensor would you recommend for this job?

____	6.	A manufacturing firm needs to ensure the product their robots are handling maintain a specific temperature during the production phase. If the product gets too hot, the robot needs to cool the piece down by placing it in a temperature controlled box (freezer) for a period of time until it is within temperature tolerance again. Then it can be returned to the production line. Which sensor would you recommend for this job?

____	7.	You are setting up a House of Horror for the local Boy Scouts, and have decided to use your robotic arm to reach out as if it is alive and grab someone (like all horror shows, the audience will be a safe distance away). You want the arm to activate when the room lights up, which happens every 45 seconds. The room then slowly dims, and the cycle repeats. Which sensor do you recommend?

____	8.	You are programming a robot to do a specific function that is out of your view. You want it to move in a precise direction for a prescribed distance before doing the next task you will assign. Which sensor do you recommend?

____	9.	A manufacturing company is highly automated, with a robotic delivery system to provide parts to various work stations along multiple assembly lines. These carts pull wagons full of the parts, and have no human drivers or tele-control systems as they are totally automated. Which sensor would you recommend to keep these systems from running all over the factory floor, and keep them restricted to limited path or roadway?

____	10.	The robotic cart above is trundling along. You don’t want it to run over anyone, since there is no human driver to put on the emergency brake. You need it to stop in case someone steps in front of the cart by accident, or something is dropped in its path. Which sensor do you recommend?

Sensor Based Feedback Systems
Answer Section

MATCHING

	1.	ANS:	I	PTS:	1

	2.	ANS:	J	PTS:	1

	3.	ANS:	E	PTS:	1

	4.	ANS:	D	PTS:	1

	5.	ANS:	A	PTS:	1

	6.	ANS:	H	PTS:	1

	7.	ANS:	B	PTS:	1

	8.	ANS:	G	PTS:	1

	9.	ANS:	F	PTS:	1

	10.	ANS:	C	PTS:	1