{"id":101,"date":"2017-05-23T10:47:49","date_gmt":"2017-05-23T14:47:49","guid":{"rendered":"https:\/\/www2.whoi.edu\/staff\/nforrester\/?page_id=101"},"modified":"2022-10-23T22:45:27","modified_gmt":"2022-10-24T02:45:27","slug":"equipment-and-techniques-developed","status":"publish","type":"page","link":"https:\/\/www2.whoi.edu\/staff\/nforrester\/equipment-and-techniques-developed\/","title":{"rendered":"Equipment &amp; Techniques Developed"},"content":{"rendered":"\n\n\t<h1>Equipment and Techniques Developed<\/h1>\n\u2022 Induction motor servo for printer carriage drive, 6\/75-2\/76<br \/>\n\u2022 Video character display chips and \u03bc-processor control for VT-100 video terminal, 6\/76-6\/78<br \/>\n\u2022 Custom graphics display chips for workstations and video terminals, 1\/80-7\/85<br \/>\n\u2022 Electric propulsion system for Alvin, 7\/85-8\/86<br \/>\n\u2022 Electrical distribution system for Alvin, 8\/85-5\/86<br \/>\n\u2022 High efficiency, 6 Watt power supply for tomography receiver, 6\/86-9\/86<br \/>\nLine frequency monitor and shutdown for Alvin battery chargers, 12\/86-6\/87<br \/>\n\u2022 Short and long baseline acoustic navigation system for Alvin, with digitally tuned filters, 8\/86-1\/90<br \/>\n\u2022 Transformer\/inductor design optimization programs, 2\/87-7\/87<br \/>\n\u2022 12 KVA power distribution and control system for the Argo\/Jason tethered vehicles, 2\/87-4\/88<br \/>\nData reduction programs for Alvin data disks, 1\/88-3\/88<br \/>\nSoftware to read Alvin serial data stream on PC, 3\/88-5\/88\nDigitally tunable 100 kHz analog front-end for acoustic modem, 3\/88-9\/88<br \/>\nAlvin battery charging software, 7\/89-9\/89<br \/>\n\u2022 Overhaul of Alvin instrument panels and wiring, 12\/88-8\/89<br \/>\n\u2022 Electrical distribution system for Alvin with 120 Volt to 26 Volt DC\/DC converters, 10\/88-8\/89<br \/>\n\u2022 120 V to 28 V, 50 Amp power converter for Alvin hydraulic pump motor, 4\/89-7\/89<br \/>\n\u2022 UNIX\/C programs for collection, logging and distribution of Alvin data, 11\/88-9\/89<br \/>\n\u2022 Digitally Programmable, 200 kHz acoustic receiver board, 4\/89-10\/89<br \/>\n200 W power amp for Alvin&#8217;s acoustic navigation transceiver, 2\/89<br \/>\nInstallation on Alvin of prototype pressure-tolerant motor controllers, 12\/89<br \/>\nEIA-232 isolation modules, 11\/89-8\/90<br \/>\nImprovements to Alvin Data Collector, including: renovation of real-time clock hardware and firmware,<br \/>\naddition of event counters, and PC program to test camera data output, 2\/90-9\/90<br \/>\n\u2022 C software interfaces to Alvin data system for: Mesotech sonar, magnetometer, U.W. entrainment array, geocompass,<br \/>\nheatflow probe, and other instruments, 12\/89-8\/90<br \/>\nAlvin 286 computer and plasma display, 5\/90-9\/90<br \/>\n5 ch. heatflow probe with heater, finished hardware and firmware, simulated thermal response of heater,<br \/>\n4\/90-7\/90<br \/>\n\u2022 2000 V, 20 kW DC power system architecture for TROV\/FOSS I vehicles, 1\/90-10\/90<br \/>\nPower, control and status interfaces, and convection cooling for Alvin pressure-tolerant motor controllers,<br \/>\n10\/90-5\/91<br \/>\nThermal analysis of TROV tether, 11\/90<br \/>\n\u2022 20 kW, 400 HZ power transmission system for TROV vehicle, including protective devices and voltage control,<br \/>\n11\/90-10\/91<br \/>\nDesigned toroidal, oil cooled, pressure tolerant transformers for TROV power system, 12\/90-7\/91<br \/>\nExpanded transformer design software to include three-phase transformers and calculation of temperature<br \/>\nrise in a convection-cooled environment for rectangular and toroidal geometries, 4\/91-7\/91<br \/>\n\u2022 400 Amp crowbar over-voltage protector for Jason\/TROV\/FOSS I, 6\/91<br \/>\n\u2022 Ground-Fault-Interrupter for 1200 V, 35 KVA, 400 Hz system, 9\/91-10\/91<br \/>\n\u2022 Water-jet thruster manifold and valves for TROV, 10\/91-2\/92<br \/>\nSoftware to combine attitude and angular rate data using LP\/HP filter, 11\/91<br \/>\n\u2022 Six DOF computer model of TROV vehicle system, 10\/91-4\/92<br \/>\nFive axis PID control software for TROV vehicle, 1\/92-4\/92<br \/>\n\u2022 12 kW, 60\/400 Hz power transmission and distribution system for FOSS I vehicle, including custom transformers,<br \/>\n5\/92-9\/92<br \/>\n\u2022 Current-limited, short-circuit protected, 400 Volt, 3 Amp, solid-state power switch, 9\/87-9\/92<br \/>\n\u2022 Power, wiring and instrument interface design for FOSS I vehicle, 5\/92-7\/93<br \/>\n\u2022 Documentation system for FOSS I, including automated drawing and parts list compilation, 7\/92-7\/95<br \/>\n8 channel, current-limited, 0.5 Amp, 50 Volt, isolated signal switch, 10\/92<br \/>\nMotor phase filter, 10 Amp, 3-phase, &gt;70 db attenuation at 100 kHz, 5\/93-6\/93<br \/>\nLC type, 900 Volt, TI arc-lamp ignitor circuit, and lamp current monitor, 3\/93-4\/93<br \/>\n\u2022 3 Watt, low noise, low impedance split-rail power supply system for arctic acoustics, 7\/93<br \/>\nRelative Acoustic Tracking System accuracy analysis, for acoustic and inertial navigation errors, 10\/93<br \/>\n\u2022 Heave compensating crane performance analysis and simulation, 11\/93-4\/94<br \/>\nCommon to Ground voltage monitor and clamp, 100 V, 3 A, 1\/94<br \/>\nPC software to operate FOSS video camera interface, 2\/94<br \/>\n\u2022 Optical analysis of FOSS video camera dome port and first-order correction, 3\/94<br \/>\nFOSS Klein 595 Side-scan sonar interference reduction, 4\/94<br \/>\nDynamic analysis of new TROV roll control system, 5\/94<br \/>\n\u2022 REMUS AUV chassis wiring and system board design: power, analog and digital I\/O for PC104 system and<br \/>\nvarious instruments, 9\/94<br \/>\nMeasurement and analysis of TOSS vehicle vertical drag coefficient, 11\/94<br \/>\nSoftware to capture digital scope waveforms from IEEE-488 bus, 11\/94<br \/>\nTROV bow thruster performance measurement and analysis, 11\/94-1\/95<br \/>\nClosed loop control software for TROV vehicle with new bow thrusters, 12\/94\n\u2022 Failure analysis of Klein 595 sonar transducers, spice modeling and actual measurement of arc induced transients,<br \/>\n1\/95-2\/95<br \/>\nSoftware for computer-assisted generation of purchase orders from parts lists, 4\/95-9\/95<br \/>\n\u2022 Design and construction of LEO-15 node and surface power and control systems, 5\/95-8\/96<br \/>\nJoystick amplifier for driving servo valve coils, current limited, 8\/95<br \/>\n\u2022 Design of TOSS II vehicle power and instrument wiring and construction of vehicle electronics, 3\/95-10\/95<br \/>\n\u2022 Design of signal and power wiring for TOSS II Mission Control Van, 8\/95-10\/95<br \/>\nSystem integration of Klein 2000 side-scan sonar with TOSS II, including over 30 db internal interference<br \/>\nreduction, addition of notch filters for suppression of CTFM interference, 9\/95-7\/96<br \/>\nIntercom audible alert for TOSS system, 6\/96<br \/>\nDetermination of GPS antenna requirements for reliable surface reception by REMUS AUV, 8\/96-10\/96<br \/>\n\u2022 Conversion of FOSS I tow vehicle to TOSS I (TOSS II equivalent), wiring of new Control Van, 5\/97-10\/97<br \/>\nREMUS battery charging and data transfer through single contact and seawater return, 1\/97-7\/98<br \/>\n\u2022 Documentation and wiring of TOSS NAVCOM van, 2\/98-4\/98<br \/>\nRemote control system for TOSS hydrographic and deep-tow winches, 5\/98-6\/98<br \/>\nLEO Guest Port simulator for testing guest instruments, 5\/98-3\/00<br \/>\n\u2022 Experimental investigation of REMUS LA battery gassing and methods of hydrogen control, 5\/98-8\/98<br \/>\nElectrical integration of micro-turbulence shear probes and related instruments on REMUS, 8\/98<br \/>\n\u2022 Development of electrical parts database and maintenance tools for use with Orcad Capture CIS, 1\/99-<br \/>\n\u2022 SAHRV motherboard, chassis wiring and support equipment, 3\/99-10\/99<br \/>\n\u2022 Method to multiplex power and 10Base2 Ethernet on two wire connection, 3\/99-7\/99<br \/>\nIntegration of Li-Ion smart batteries to REMUS SMBus, 4\/00-10\/01<br \/>\n\u2022 Li-Ion smart battery charge\/discharge cycle tester and data logging and control software, 3\/01-10\/01<br \/>\nGPS receiver\/antenna installation for REMUS, 1\/01-3\/01<br \/>\n\u2022 Li-Ion 250 Wh battery for REMUS, including controller board with data communication, protection and<br \/>\ncharger, board test fixture, test and embedded battery software, 11\/01-11\/02<br \/>\n\u2022 8 kWh Li-Ion battery system for SAMS: smart battery data system, 1.5 kW chargers with computer control<br \/>\nand software, 10\/01-4\/03<br \/>\nSAMS weight release controller board and software, 3\/02-4\/03<br \/>\nSAMS radio system and antennas: GPS, ARGOS, Freewave modem, 10\/01-7\/03<br \/>\n\u2022 7 kWh Li-Ion battery system for Tunnel AUV with 450 Wh battery packs and controllers, 7\/02-12\/02<br \/>\n\u2022 GPS, Iridium and 2.5 GHz WIFI ceramic patch antennas for deep ocean application, tuned for polyurethane<br \/>\nencapsulation; passive, active, and L1\/L2 GPS designs, 9\/03-9\/04<br \/>\n\u2022 Develop software for SMS messaging on Iridium, 10\/03-7\/04<br \/>\n\u2022 Guest instrument isolation switch, 20 A maximum, programmable current limit, signal isolation, 11\/03-7\/04.<br \/>\n\u2022 5 kWh Li-Ion battery system for REMUS-600 and dock, using 500 Wh, 63 cell packs and REMUS control<br \/>\nelectronics, 5\/03-9\/04<br \/>\n\u2022 5.2 kWh Li-Ion battery system for SAMS II, 650 Wh, 84 cell pack design, control and protection electronics,<br \/>\n5\/03-9\/04<br \/>\nSAMS II battery chargers, upgrade to programmable voltage and current, 5\/04-7\/04<br \/>\nSAMS II weight release board: added software to relay GPS by Iridium SMS during power emergency, 7\/04.<br \/>\n\u2022 Review of U.S. DOT Hazardous Material Regulations (49CFR171-178), International Air Transport Association<br \/>\nDangerous Goods Regulations, and International Maritime Dangerous Goods Code for<br \/>\nimpact on Li-Ion battery transportation. 5\/03-9\/05<br \/>\nPerformance evaluation of REMUS-100 batteries over extended temperature range, 5\/06-6\/06<br \/>\nLSG magnetic sensor integration in REMUS-600, test program support, 1\/06-4\/06<br \/>\n\u2022 Multi-channel towed acoustic array, per-channel digitizing electronics and network data telemetry, field reprogrammable,<br \/>\n1\/06-8\/09<br \/>\n\u2022 High-speed driver for high-intensity light emitting diode array, 20 MHz, 1 and 3 channels, 9\/07-5\/10<br \/>\n\u2022 Acoustic data analysis software for acoustic array data, 6\/08-8\/09<br \/>\nSubmersible load cell for array drag measurement, 11\/08-9\/09<br \/>\nStudy Low-power, long endurance REMUS AUV: main electronic, sensors and thruster, 11\/08-9\/09<br \/>\n3-Axis magnetic sensor for towed array, 6\/09-9\/10<br \/>\n\u2022 72-channel towed acoustic line array with per-channel, 3-axis gravity and magnetic sensors, 6\/09-9\/10\nPower control for REMUS-600 variable ballast system, 5\/11-6\/11<br \/>\nController\/interface for chip-scale atomic clock, 6\/11-7\/13<br \/>\n\u2022 Matlab simulation of solar\/wind power generation for Ocean Observatories Initiative buoys, 9\/11-11\/11<br \/>\n\u2022 Pseudo-sinusoidal drive motor controller, major redesign and firmware upgrade, closed-loop commutation<br \/>\nphase control, torque measurement from phase current, 12\/11-8\/13<br \/>\nPerl code automation of Magtrol dynamometer in constant velocity and torque modes, 1\/12-6\/12<br \/>\n\u2022 Vehicle core redesign for reduced power consumption and wiring complexity, 9\/12-9\/19<br \/>\n5 Amp charge capability for REMUS battery controller, 12\/13-3\/14<br \/>\nMigration of Orcad parts database to mySQL with Perl back-end for creation of new parts, 5\/14-9\/14<br \/>\nRedesigned REMUS battery interface to allow serial multi-drop operation, 12\/16-7\/17<br \/>\nAdd new timing functions to REMUS Emergency Board, 3\/18-5\/18<br \/>\n\u2022 Method to filter Iridium geolocation fixes with very low probability of accepting a bad fix, 9\/18-11\/18<br \/>\n\u2022 Major revisions of REMUS Core Board, continued firmware development, 12\/19-7\/21<br \/>\nOpenNTP bug fixes and optimizatrion for use with NEDS arrays, 2\/21\n\n","protected":false},"excerpt":{"rendered":"<p>Equipment and Techniques Developed \u2022 Induction motor servo for printer carriage drive, 6\/75-2\/76 \u2022 Video character display chips and \u03bc-processor control for VT-100 video terminal, 6\/76-6\/78 \u2022 Custom graphics display chips for workstations and video terminals, 1\/80-7\/85 \u2022 Electric propulsion system for Alvin, 7\/85-8\/86 \u2022 Electrical distribution system for Alvin, 8\/85-5\/86 \u2022 High efficiency, 6&hellip;<\/p>\n","protected":false},"author":20,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www2.whoi.edu\/staff\/nforrester\/wp-json\/wp\/v2\/pages\/101"}],"collection":[{"href":"https:\/\/www2.whoi.edu\/staff\/nforrester\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www2.whoi.edu\/staff\/nforrester\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/staff\/nforrester\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/staff\/nforrester\/wp-json\/wp\/v2\/comments?post=101"}],"version-history":[{"count":3,"href":"https:\/\/www2.whoi.edu\/staff\/nforrester\/wp-json\/wp\/v2\/pages\/101\/revisions"}],"predecessor-version":[{"id":159,"href":"https:\/\/www2.whoi.edu\/staff\/nforrester\/wp-json\/wp\/v2\/pages\/101\/revisions\/159"}],"wp:attachment":[{"href":"https:\/\/www2.whoi.edu\/staff\/nforrester\/wp-json\/wp\/v2\/media?parent=101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}