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SW/HW Engineering
Email: jeppe@gade.se
Personal webb: www.gade.se |
Products |
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This is a short presentation of
products I have developed or been involved in |
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03/2006 - 11/2008 |
SEANET Maritime Communications Stabilized Maritime
Satellite Communications platform C-MAX
Pict 8.1:
Me in the lab at Arninge, a former PowerWave site. I made the System
development, some mechanical design and all Electronics (Digital, Analog and RF) Design and some of the SW
development. We started with a team of three persons and for a short time we
where seven persons in the team.
Pict 8.2:
The dish is made of a mold with carbon fiber.
Pict 8.3:
Tracking satellite signals outdoors. The radome is
not mounted yet.
Pict 8.4:
The antenna platform. The stepper motors
with special Harmonic Drive gearboxes are compensating for the ships experiences of pitch, roll and yaw movements in order to
continually track the fixed geostationary orbital satellites. The movement
forces can be very high and the system is capable of moving up to 70 degrees
per second. The demand of dynamically exactly pointing to the satellite is
within fractions of degrees and this is partly made by controlling the
microwave beam electronically.
Pict 8.5:
Controller board CMC Embedded Linux
processor from AXIS, ARM processor and embedded CORTEX processor in a Mixed
Signal FPGA FUSION600 from ACTEL. The board is controlling 3 stepper motors
and is equipped with GPS, Electronic Compass and Tilt Sensor. Communication over LAN.
Pict 8.6:
The RF-board is equipped with dual tuners and demodulators from Zarlink and a logarithmic detector.
Pict 8.7:
The RF-board mounted on the mother board
Pict 8.8:
The RF-sealed case and all connections to LAN, USB, SD-Memory, GPS, Compass,
EBS-module and the drives for TILT, PAN and Skew including optical sensors
and power steering to the BUC.
Pict 8.9:
Developing the FPGA functions.
Pict 8.10: A
lot of interconnections made with DB9 standard extension cables.
Pict 8.11:
An early version of the EBS board made of capton
and the controller board
Pict 8.12:
An EBS-board from another product.
Pict 8.13:
TILT position sensors
Pict 8.14:
Testing a GPS Compass with two Active Antennas
Pict 8.15:
Testing the GPS compass with Gyro and a TILT sensor on the right side
Pict 8.16:
Adapter for the TILT sensor
Pict 8.17:
The harmonic drive
Pict 8.18:
The Slipring
Pict 8.19:
The Slipcon
Pict 8.20:
The Slipring
Pict 8.21:
Testing a Magnetic Compass with TILT sensor. The board was mounted in a
plastic box with an aluminium frame and DB9 contact.
Pict 8.22: A
microstep driver for the smaller SKEW stepper motor
for the polarity angle.
Pict 8.23:
The main DC-power supply to the stepper motors
Pict 8.24:
The main DC-power supply with the huge toroid
transformer
Pict 8.25:
The stepper motor controllers at the right side with adapter board for the
DSUB9-cable
Pict 8.26:
The TILT-table for testing dynamic control system
Pict 8.27:
The TILT-table motor control.
Pict 8.28:
The rotary joint platform
Pict 8.29
The stepper motors and gearboxes. |
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10/2003 - 10/2004 |
Combitech
Systems AB - Test system The European
Tornado fighter plane. Mechanical and
Electronics Design and construction of a complete Test System for
Electronic Warfare system. |
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11/2001- 11/2003 |
- SAAB Avionics AB (SAAB Tech AB) Järfälla The European
Tornado and Swedish JAS Gripen fighter planes
EW-system. Tornado Radar Warning System
Pict
6.1 Tornado Radar Warning System
Pict
6.2 The most modern RWR available today, featuring: Hi speed
measurement and calibration peripherals unit in the RWS-system. Test unit for verifying and production
testing |
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08/1998 - 10/2001 |
- NOKIA WCDMA telecommunications systems.
Sweden and Finland. Designed a new
Baseband board for a GSM basestations Designed a complete
new baseband-function block for a micro base-station complete with
LAN-communication, E1/T1,RS232,RS485, Bluetooth for commissioning, program
controlled ref. clock, PowerPC, DSP and FPGA etc. Designed a new
digital control and communication board for a 3G transceiver. Member in a
group for development of a micro basestation for
3G. |
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06/1992 - 07/1998 |
- NOKIA MAILLEFER AB Responsible for RF, Analog and digital measurement system design for parametric
measurement quality systems in cable manufacturing. Design of a complete test-system for
LAN-cables in cable manufacturing. Schematics ,PCB- and mechanical design. SW programs developed: 1992 Driver for SC204-BO204, BUS_SEL 1.00
NOKIA‑MAILLEFER 921118 Windows PC-program for remotecontrol
of measurement computer ABMAN Programming embedded Pentium
system in QNX OS with Realtime C. 1996 Drivers and testprograms
for: IBUS, RMU, CMU 1996 CPLD VHDL
Programmed chips: CPLD501, CPLD502, CPLD503, CPLD504 (statemachine) |
Products Instuments AB100 AB110 IV401 LT568 Connect CT159 CT201 CT202 CT203 CT204 CT205 SC204 BO204 OS Sys DEC RT11 DOS Windows QNX System SY301 SY302 SY303 SY305 |
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Pict 4.1: LT568 with built in HP Network Analyzer, Pentium processor with
TFT screen, measuring boards for resistance and capacitance and Connection
tables |
Pict 4.2 Capacitance measurement board
Pict 4.3 Capacitance bridge |
Pict 4.4 Resistance measurement board
Pict 4.5 Sector controller |
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Pict 4.6, 4.7 Sector board and 4 connection units |
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LT568 LAN-cable Test Set
Pict
4.8
Pict 4.9, 4.10, 4.11 The RF connection table with
special designed boards with self cutting connecting leeves
to the insulated twisted pair cable |
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Pict 4.12: AB110 with networkanalyser and built
in PC with plasmascreen |
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04/1989 - 05/1992 |
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Ingenjörsfirma J. Gade Consultancy Development for Kontrollelektronik AB, Söderkoping,
Sweden Design of microcontroller systems
for environment measuring and control. Design of microcontroller system
for automatic handicap kitchen. Programming in C.
Pict 3.1: |
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03/1987 – 03/1989 |
- SEMCON - Bofors
– Robot 70 and Bamse Mobile computersystem for Signal capture and evaluation of
missile flight data
Pict 2.1:
Programming in TurboPascal. Graphical presentation. - ERICSSON - System design. Sweden Functions in
measurement data capture from the radar system Ericsson Giraffe and Sea Giraffe. Programming in Realtime
Pascal ‘ERIPASCAL’
Pict 2.2: The Ericsson Giraffe Radar at work |
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04/1975 – 02/1987 |
- ERICSSON Production engineering, design of
computerized process supervision for printed circuit board manufacturing. Design of robot handling systems. Clean room technology. System responsibility of VAX computer center. Design and construction of the world’s first microcomputer controlled pulse plating rectifier for gold-plating. SW design in Assembler.
Pict 1.1: Controller with Motorola M6800 and additional electronic
interfaces
Pict 1.2: Water cooled current controlled rectifier
Pict 1.3: The current sources for computer controlled pulsed goldplating installed in cabinette. The current comes as pulse-trains
at 100 A aprox 6V DC with a
duration of some ms and the train is 13 pulses with aprox 3 ms between pulses. Then there is a DC controlled
period between. In this way we could create a multilayer goldplating layer with different crystal structures
between the layers. The result is a solid layer with a strength that is 5
times normal goldplating. The goldplating
layer is normally weared out during the contacts
insert and removal movement but with this crystalized
multilayers the total amount of gold can be
decreased to only 20% witch make a huge amount of economical savings. |
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Pict 1.4: Dosing system for palladium in a chemical copper line using redox-potential and timers.
Pict 1.5: The chemical copper line for printed circuits production at
Ericsson Ingelsta in Norrköping |
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Muskö May 2008 |
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Created
2005-01-20 Last Update: 2013-01-15 |
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