Meaning, Glossary and Acronym > Robotic Words

Actuator: something that moves. i.e. Robotic hand, motor

Android: Humanlike robot.

AI: Artificial intelligence. Attempting to emulate intelligence in living beings.

A/D: Analog to digital. Coverts voltage to discrete value.

Ampere: Measurement of current.

Anode: The "+" end of a diode/LED, etc. See cathode.

B:

Base: Middle pin (usually) of a transistor. Controls emitter to collector current. See emitter and collector

Battery: Converts chemical energy to electrical energy on demand.

Binary: A number system using 0 and 1s.

Breadboard: Board used for prototyping. Allows for quick plugging in of components.

Bot Board: Popular HC11 microcontroller board developed my Marvin Green.

Basic Stamp: Popular easy to use microcontroller. Made by Parallax Inc.

Basic X: Another microcontroller. Made by Net Media.

C:

C: De facto programming standard for many microcontrollers.

Capacitor: Component which stores electrical energy. Measured in farads.

Cathode: The "-" end of a diode/LED, etc. See anode.

CMOS: Complementary Metal Oxide Semiconductor.

Collector: Pin of transistor that doesn't have an arrow on the schematic. See base and emitter.

Compiler: Program that coverts a computer program into bytecode, or code that the computer can understand.

Conductor: Anything that allows the passage of electrons.

D:

DC: Direct current. Non fluctuating voltage.

Diode: Allows current to flow in one direction.

DIRRS: Digital Infrared Rangefinding System. Measures distance with IR light. See sensors.

E:

EEPROM: Electronically Erasable Programmable Read Only Memory.

EPROM: Electronic Programmable Read Only Memory.

Emitter: Transistor pin that has an arrow on circuit diagrams.

F:

Freeform: Technique used in building circuits. All components are soldered to each other, without the use of a board.

G:

Gear: Wheel with teeth. Used to drive other gears, and create a geardown.

Geardown: Converting high speed, low torque into high torque, low speed.

Gyroscope: Device used to determine how rapidly the robot is rotating or how fast it has rotated, relative to a fixed coordinated system. (Mobile Robots)

H:

H-Bridge: Controls motors using low current signal, like a I/O pin.

Hexadecimal: Number system with a base of 8 instead of the base of 10 used in standard decimal number system.

HC11/12: Popular microcontroller.

Handy Board: Microcontroller board based on HC11 developed by Fred Martin. Small, hence the name handy board.

I:

IC: Integrated Circuit

Inclinometer: Measures angle of attack.

I/O: Input Out. Can either receive or send information.

Interrupt: Subroutine or action, that interrupts program flow, and executes when outside action triggers it.

IR: Infrared. See article.

J:

K:

L:

Locomotion: movement.

Logarithmic amplifier: Amplifier in which the output is logarithmic to the input. i.e. 1 in 1 out. 10 in 1000 out.

M:

Memory: Stores value. See EEPROM, ROM, RAM

Mercury switch: Switch that closes and opens when tilted.

Microcontroller: Subclass of a microprocessor. Basically just a small computer without a monitor or keyboard, that is specially designed to control circuits, robot, etc.

Microphone: Converts sound waves to electrical signal.

Mini Board: Older microcontroller board based on the HC11.

Object Oriented: Programming technique where program is made of of objects that perform certain tasks.

OOPic: Object Oriented Programmable Interrupt Controller. Inexpensive and powerful microcontroller. See www.oopic.com
OEM: Original Equipment Manufacturer

Operand: "Data value that is processed by an instruction in some way." (Mobile Robots)

Optoisolator: Allows isolation of different circuit by means of transmitted light inside the chip. May be used to isolate logic from motors, etc.

Ounce-inch: Common measurement for torque in servos and small motors.

P:

PC: Personal Computer

Photodiodes: Diodes that are specially made to detect light. See sensors.

Photointerrupter: Sometimes called a shaft encoder. Transmitted light beam is broken by rotating disk on wheel. Logic determines speed based on light pulses. See sensors.

Photoreflector: Same as above, but light beam is reflected by rotating black and white striped disk.

Photoresistor: Resistor which changes its resistance based on the amount of light striking the light sensitive surface. See sensors.

Phototransistors: Transistor in which the light sensitive base controls the collector-emitter current flow. See sensors.

Piezoelectric film: "Piezoelectric film sensors produce voltage only when subjected to changes in the sensed quantity." (Mobile Robots)

PIR: Pyroelectric Infrared.

Potentiometer: Or Pot. Two variable resistors in one package. Composed of a resistor (i.e. 10k) and a wiper. When one side of the wiper's resistance goes up, the other side goes down.

PROM: Programmable Read Only Memory.

Proximity Detector: Sensors with produces a digital (on/off) based on an obstacles distance from it.

Pulse-width Modulation: Means by which a digital processor (on/off) produces an analog varying voltage. Processor produces very fast on/off pulses. The average voltage from this is based on the pulse times.

Pyroelectric: Or PIR. Detects infrared radiation, in the form of body heat.

Q:

R:

Radian: Measurement of angle. 2 PI radians in a circle. To convert radians to degrees, replace PI with 180. To convert degrees to radians: degrees / 180 * PI.

RAM: Random Access Memory.

ROM: Read Only Memory.

Relay: Switch which activates then power is applied over its terminals.

Resistor: Components which limits current flow. Measured in ohms.

S:

Semiconductor: Device which neither fully conducts, nor fully resists.

Servo: Non 360° rotating gear motor, which is positioned using a pulse stream. Commonly used for RC applications. See Hacking A Servo.

Shaft encoder: See Photointerrupter, Photoreflector, Sensors.

Solenoid: Device which either pulls, pushes, or turns a metal rod based on electromagnetic forces.

Sonar: Device which measures distance based on reflected sound waves. See sensors.

Subsumption Architecture: Robot programming method developed by Rodney Brooks at MIT. Emulates basic animal behavior by giving each behavior a priority, so that higher priority events always will execute first.

T:

Torque: "Angular force that a motor can deliver at a certain distance from the shaft." (Mobile Robots)

Transistor: Switching, or amplifying device. 3 pins. Base, Collector, and Emitter. Either PNP or NPN. Base drives the collector to emitter current.

U:

V:

Voltage: Measurement of electrical force. I.E. Pressure behind the current. Measured in volts. Sometimes known as EMF (Electromagnetic Force).

W:

Wall following: Technique used to solve mazes. Either left hand or right hand. Follow wall always on that side.

Watt: Measurement of power. Power is the rate you use energy. Power = voltage * current.

Wire-Wrap: Method used to prototype circuits. Wire-wrap tool is used to tightly wrap wire around the components pins.

X:

Y:

Z: