Electronics Engineering Crossword (Issue 263)

Across

1.     SPARKGAP—A space in an otherwise closed electric circuit [two words]

3.     FUZZYLOGIC—Began in 1965 with Lotfi Zadeh’s proposal of a certain type of set theory [two words]

6.     NULLTEST—Cancels a device’s signal input by negative feedback from its output [two words]

7.     COULOMB—One of these is equal to 6.28 x 1018 electrons

10.   EDDYCURRENT—A.k.a. Foucault currents [two words]

11.   KIRCHHOFF—Created a law of thermochemistry

13.   ANDGATE—Relies on truth and logic  [two words]

16.   HOLONYAK—Invented the LED while working at General Electric in the 1960s

17.   SOLIDSTATERELAY—Doesn’t rely on movement or contact to switch electric circuits [three words]

20.   ACCIRCUIT—A circuit with a current that goes one way and then another [two words]

Down

2.     ANNEAL—Run hot and cold

4.     OPTOISOLATOR—Changes electrical signals to light and back into electrical signals

5.     CHECKBIT—Adds a bit to make things even or odd [two words]

8.     MICROFARAD—1,000,000 pF

9.     THEVENIN—French engineer (1857–1926); augmented Ohm’s law

12.   KELVINSCALE—Temperature scale where 0° = absolute zero [two words]

14.   PHOTODIODE—Turns light into current or voltage

15.   ACORNTUBE—A small tube used at very high frequencies [two words]

18.   ERG—Causes 1 cm of movement

19.   ASCII—A character-encoding system used to represent text

 

Electronics Engineering Crossword (Issue 262)

ACROSS

3.     CATHODERAYOSCILLOSCOPE—Isn’t a digital ’scope [three words]

6.     PASSBAND—A super-efficient band of frequencies

9.     MESHNETWORKING—Relies on nodes to capture, distribute, and reproduce data [two words]

11.   PYTHON—An open-source programming language that relies of automatic memory management

13.   NORTONSTHEOREM—A formula for linear electrical networks [two words]

15.   TRIMMER—Variable resistors, variable capacitors, or trimmable inductors, for example

18.   DATATRANSFERRATE—Measures data’s speed of travel [three words]

 

DOWN

1.     COLUMBSLAW—Electrostatic physics principal [two words]

2.     NOVACEK—Wrote 26 feature articles for Circuit Cellar between 1999 and 2004

4.     CYGWIN—Enables you to “get that Linux feeling on Windows”

5.     ELECTROLUMINESCENCE—Light emission caused by electrical influences

7.     SCHMITTTRIGGER—A comparator with two different threshold voltage levels [two words]

8.     POLARITYSWITCH—Reverses an output signal’s absolute phase [two words]

10.   SIEMENS—Equivalent of amperes per volt

12.   RAREFACTION—Sound wave phase

14.   SLEWRATE—Represents a signal’s maximum rate of change [two words]

16.   QFACTOR—Measures the damping of resonator modes

17.   GERBER—PCB file format

19.   TRIODE—An amp device with three electrodes

20.   SPRAGUE—Known as the “father of electric traction”

 

Electronics Engineering Crossword (Issue 261)

The answers to the crossword puzzle published in rCircuit Cellar 261, April 2012.

ACROSS

7. MANCHESTERENCODING—A form of BPSK [two words]

10. REBOOT—Restart

13. HASHTAG—The # label

15. DIRECTORY—File index

17. DAEMON—Takes place behind the scenes

18. FREEBASIC—Open-source programming language compiler

19. MALWARE—Bad code

DOWN

1. PHASESHIFTKEYING—Transports data by altering a reference signal’s phase [three words]

2. FOURIERTRANSFORM—Changes a signal from the time domain to the frequency domain [two words]

3. ATTENUATON—Used to measure signal loss in dB

4. SHANNONTHEOREM—AKA, the noisy-channel coding theorem [two words]

5. BOOLEAN—Logic system named after George Boole

6. FREQUENCYMODULATION—Opposite of AM [two words]

8. COULOMBCOUNTER—Measures battery current [two words]

9. FOURTHGENERATION—4G [two words]

11. FIRSTQUARTILE—25th percentile [two words]

12. NORTONAMPLIFIER—Converts a current to a voltage. [two words]

14. HBRIDGE—Four switching components with the load in center

16. CODIFY—A way to organize