Page 316 - Anatomy of a Robot
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12_200256_Index  4/10/03  3:41 PM  Page 301
                                                     M
                            leakage, in batteries, 130
                                                                               content addressable (CAM), 97
                            learning, 79–81
                                                     machining and forming of  chips for, 93–95  INDEX 301
                            least mean square (LMS)    materials, 282–283      destructive readout in, 94
                              algorithm, 62–65                                 direct memory access (DMA)
                                                     maneuverability, 57
                            Legendre, 62, 63         mass, 40, 48                and, 104, 118
                            level one (L1)/level two (L2)                      downloading times and, 91
                                                     mass at heights (potential
                              cache memory, 97         energy), 31             dynamic random access
                            leverage and safety, 131                             (DRAM), 93–98
                                                     materials, 282–287
                            leveraging existing technology,  availability of, 284  energy and power supplies
                              75–76                                              in, 174
                                                      composites, 283
                            licensing of software and, 76  cost of, 284        flash type, 93
                            licensing software, 120   dynamic mechanics and,   level one (L1)/level two (L2)
                            life testing, 144–145                                cache, 97
                                                        288–290
                            limit of operations, testing   fatigue in, 286     looping and, 96
                              for, 144                                         memory management unit
                                                      fiberglass, 283
                            linear regulators, 169–170  galvanic corrosion in, 285–286  (MMU) and, 92
                            liquid crystal display (LCD), 83                   pages in, 92
                                                      heat transfer in, 290–291
                            load limits, communication, 260  lubrication and dirt, 286  PCMCIA cards for, 93
                            local area networks (LAN), 82,                     power failures, 182–183
                                                      machining and forming of,
                              102, 105–108, 272                                random access (RAM),
                             10BT/100BT/1000BT          282–283                  117–118
                                                      metals, 283
                               standards for, baseband, 106,  natural frequencies and  RAS/CAS cycle in, 95
                               232, 272                                        read only (ROM), 101,
                                                        vibration, 290
                             Aloha time division                                 117–118
                               communication systems   plastics, 283           refresh time in, 94
                                                      resins, 283
                               in, 261                                         static random access (SRAM),
                             Ethernet and, 272        static mechanics and, 287–288  94–95
                                                      strength of, 284–285
                             infrared wireless, 107                            static type, 93–94
                             Physical layer in, 272   strength to weight ratios in, 282  stored programs in, 90–91
                                                      tolerances for, 287
                             TCP error-free communication                      thrashing in, 97–98
                               in, 273                wood, 283               memory bus, 104
                             user datagram protocol (UDP)  mathematics of reliability, 124  memory management unit
                                                     Maxwell, James Clerk, 138, 139
                               in, 273–274                                      (MMU), 92
                             wireless (802.11b),     Maxwell’s Equations, 138  metals, 283
                                                     mean time between failure
                               106–107, 269                                    galvanic corrosion in, 285–286
                            locomotion system, 148     (MTBF), 110, 125       millions of instructions per
                                                     mean time to failure (MTTF),
                            Loebner Prize, 21                                   second (MIPS), 115–116
                            longevity                  124, 125, 126          Minkowski, 67
                             display systems and, 112, 113  mean time to repair a failure  mission statement, 14
                             hard disk drives and, 110  (MTTR), 125           mixed signal circuitry, 82–83
                            loops                    mechanical stress, 58    modems, 271
                             energy and power supplies   mechanical threats and   modulation, 232–238
                               in, 189                 safety, 131            modulator/demodulator, 250,
                             memory and, 96          mechanical wracking, 53, 55, 58  251–252
                            low frequency and        mechanics (See also materials),  motor brakes, 186
                              interference, 139        281–291                motor force, in control
                            low pass filters in, 209, 210  memory, 79–81, 90–98, 117–118  systems, 31
                            lubrication, 286          addressing, 91–92, 95, 97  motors, 275–279
                            Lunar Excursion Module    buses for, 104           AC motors, 275–276
                              (LEM), 154              cache, 95–98             braking in, 186
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