Forskjell mellom versjoner av «Evaluering i TFY4190 Instrumentering»
Fra NablaWiki
(→Representasjon av negative tall) |
(kategori) |
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(12 midlertidige revisjoner av 3 brukere er ikke vist) | |||
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== Generelt == | == Generelt == | ||
* [http://folk.ntnu.no/spreeman/itsnotlearning/TFY4190-2007V/Curriculum.pdf Pensumliste våren 2007] | * [http://folk.ntnu.no/spreeman/itsnotlearning/TFY4190-2007V/Curriculum.pdf Pensumliste våren 2007] | ||
+ | * [http://folk.ntnu.no/spreeman/itsnotlearning/TFY4190-2007V/repetisjonsoppgsvar.pdf Innsamlede svar på repetisjonsoppgaver våren 2007] | ||
* [http://www.maxim-ic.com/glossary/ Glossary of Electrical Engineering Terms] | * [http://www.maxim-ic.com/glossary/ Glossary of Electrical Engineering Terms] | ||
+ | * [http://www.elfa.se/no/index1.html ELFA] | ||
=== Lab-oppgaver === | === Lab-oppgaver === | ||
* [http://folk.ntnu.no/spreeman/itsnotlearning/TFY4190-2007V/lab_3.pdf Lab-oppgave 3] (PID-controller) | * [http://folk.ntnu.no/spreeman/itsnotlearning/TFY4190-2007V/lab_3.pdf Lab-oppgave 3] (PID-controller) | ||
Linje 11: | Linje 13: | ||
* [http://en.wikipedia.org/wiki/Gray_code Wikipedia: Gray code] | * [http://en.wikipedia.org/wiki/Gray_code Wikipedia: Gray code] | ||
* [http://www.asciitable.com/ ASCII-tabell] | * [http://www.asciitable.com/ ASCII-tabell] | ||
+ | * [http://www.easycalculation.com/hexa-decimal-binary.php Kalkulator mellom binære, hexadesimale og desimale tall] | ||
=== Flyttall === | === Flyttall === | ||
* [http://en.wikipedia.org/wiki/Floating_point Wikipedia: Floating point] | * [http://en.wikipedia.org/wiki/Floating_point Wikipedia: Floating point] | ||
− | * [http://en.wikipedia.org/wiki/IEEE_floating-point_standard Wikipedia: IEEE floating point standard] (Se avsnitt [http://en.wikipedia.org/wiki/IEEE_floating-point_standard#A_more_complex_example "A more complex example"] for | + | * [http://en.wikipedia.org/wiki/IEEE_floating-point_standard Wikipedia: IEEE floating point standard] (Se avsnitt [http://en.wikipedia.org/wiki/IEEE_floating-point_standard#A_more_complex_example "A more complex example"] for fremgangsmåte) |
=== Representasjon av negative tall === | === Representasjon av negative tall === | ||
Linje 19: | Linje 22: | ||
* [http://en.wikipedia.org/wiki/Two%27s_complement Wikipedia: Two's complement] | * [http://en.wikipedia.org/wiki/Two%27s_complement Wikipedia: Two's complement] | ||
* [http://en.wikipedia.org/wiki/Signed_number_representations Wikipedia: Signed number representations] (Bl.a. one's complement) | * [http://en.wikipedia.org/wiki/Signed_number_representations Wikipedia: Signed number representations] (Bl.a. one's complement) | ||
− | |||
== Støy == | == Støy == | ||
Linje 31: | Linje 33: | ||
== Data-konvertering == | == Data-konvertering == | ||
* [http://soundlab.cs.princeton.edu/learning/tutorials/sensors/node16.html Strøm til spenning ved bruk av inverterende op-amp] | * [http://soundlab.cs.princeton.edu/learning/tutorials/sensors/node16.html Strøm til spenning ved bruk av inverterende op-amp] | ||
− | * [http://www.hardwaresecrets.com/article/317 | + | * [http://www.hardwaresecrets.com/article/317 En bra introduksjon til AD-convertering] |
=== AD-convertere === | === AD-convertere === | ||
* [http://en.wikipedia.org/wiki/Analog-to-digital_converter Wikipedia: AD-converter] | * [http://en.wikipedia.org/wiki/Analog-to-digital_converter Wikipedia: AD-converter] | ||
Linje 46: | Linje 48: | ||
== Signaloverføring == | == Signaloverføring == | ||
* [http://en.wikipedia.org/wiki/Characteristic_impedance Wikipedia: Characteristic impedance] | * [http://en.wikipedia.org/wiki/Characteristic_impedance Wikipedia: Characteristic impedance] | ||
+ | * [http://kom.aau.dk/~heb/kurser/felt-07/eloh01v4.ppt Eksterne forelesningsnotater om transmisjonslinjer] | ||
== Diverse == | == Diverse == | ||
* [http://en.wikipedia.org/wiki/Thermocouple Wikipedia: Thermocouple] | * [http://en.wikipedia.org/wiki/Thermocouple Wikipedia: Thermocouple] | ||
+ | * [http://en.wikipedia.org/wiki/Operational_amplifier_applications Wikipedia: Operational amplifier applications] (forskjellige op-amper) | ||
== Flervalgsoppgaver == | == Flervalgsoppgaver == | ||
Linje 84: | Linje 88: | ||
*Which of these number representations have more than one representation for zero? | *Which of these number representations have more than one representation for zero? | ||
− | Sign + magnitude | + | Sign + magnitude AND 1-complenent. (there is an error in the question, so it is removed from the test) |
*A LabVIEW program is used to read the output of a 12-bit AD converter with range ± 10V. The binary output is available in 2-complement form. By some reason, the program gives the result in hex as C8A. Then the voltage is | *A LabVIEW program is used to read the output of a 12-bit AD converter with range ± 10V. The binary output is available in 2-complement form. By some reason, the program gives the result in hex as C8A. Then the voltage is | ||
Linje 91: | Linje 95: | ||
*A 300 ohm transmission line is terminated with a standard 50 ohm pure resistive termination. A signal is transmitted on the line. | *A 300 ohm transmission line is terminated with a standard 50 ohm pure resistive termination. A signal is transmitted on the line. | ||
There will be a phase reversal of the reflected signal | There will be a phase reversal of the reflected signal | ||
+ | |||
+ | [[Kategori:Fysikkfag]] |
Nåværende revisjon fra 3. nov. 2011 kl. 13:58
I faget Instrumentering består deler av evalueringen av en fire-timers prøve, der alle bøker samt Internett er tillatte hjelpemidler. I den forbindelse kan det være greit å ha en oversikt over nettsider med relevant informasjon. Linkene er forsøkt sortert slik pensumlisten er inndelt, enn hvor ulogisk den kan være.
Innhold
Generelt
- Pensumliste våren 2007
- Innsamlede svar på repetisjonsoppgaver våren 2007
- Glossary of Electrical Engineering Terms
- ELFA
Lab-oppgaver
- Lab-oppgave 3 (PID-controller)
Tall i datamaskiner
- Wikipedia: BCD (Se "Packed BCD" for 8421-BCD)
- Wikipedia: Gray code
- ASCII-tabell
- Kalkulator mellom binære, hexadesimale og desimale tall
Flyttall
- Wikipedia: Floating point
- Wikipedia: IEEE floating point standard (Se avsnitt "A more complex example" for fremgangsmåte)
Representasjon av negative tall
- Wikipedia: Exponent bias
- Wikipedia: Two's complement
- Wikipedia: Signed number representations (Bl.a. one's complement)
Støy
- Wikipedia: Ground
- Wikipedia: Electronic noise (Bl.a. liste over støytyper)
Støytyper
Data-konvertering
AD-convertere
- Wikipedia: AD-converter
- Flash-type AD-converter (Se spesielt siste kretstegning som kraftig forenkler Northrop s. 618)
- Wikipedia: Successive Approximation ADC
- Delta-Sigma-ADC
Sampling
- FFT og spektralanalyse i Matlab (siden Matlab er tilgjengelig)
- Sample and Hold
- Wikipedia: Sample and Hold
- Wikipedia: Anti-aliasing
Signaloverføring
Diverse
- Wikipedia: Thermocouple
- Wikipedia: Operational amplifier applications (forskjellige op-amper)
Flervalgsoppgaver
Før evalueringen våren 2007 ble der lagt ut eksempeloppgaver. Under følger et utvalg av disse med svar.
- An anti-alias filter is
Placed berore the input to remove frequencies above the Nyquist limit
- The resolution of a DAC depends on
The number of bits
- A LabVIEW program gives the value of an integer as 65534. You know that this actually is a small negative number, but represented as an unsigned 16-bit integer. The small number is
-2
- In addition to letters and numbers, the 7-bit ASCII code has codes for
Codes for communication control
- If the transfer function of a regulator has poles in the right half plane
The output will increase exponentially with time
- Suppose we have a small signal in the range 0 - 2 mV. It can be amplified by a factor of 1000. We have the choice of two AD converters, one 12 bit with range ± 10V and one 10 bit with range 0 - 5V. Which one has the best resolution?
They are equal
- Thermocouples need zero-point correction because
Their output gives the temperature difference between two junctions
- Shot noise has a frequency dependance that is called
White noise
- One of the following units is not used for magnetic fields:
Henry
- The transmission velocity of a signal on a coaxial line depends mainly on
The dielectric
- Which of these number representations have more than one representation for zero?
Sign + magnitude AND 1-complenent. (there is an error in the question, so it is removed from the test)
- A LabVIEW program is used to read the output of a 12-bit AD converter with range ± 10V. The binary output is available in 2-complement form. By some reason, the program gives the result in hex as C8A. Then the voltage is
-4,33 V
- A 300 ohm transmission line is terminated with a standard 50 ohm pure resistive termination. A signal is transmitted on the line.
There will be a phase reversal of the reflected signal