Difference between revisions of "User:Judith van der Heiden"
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[[File:breadbord.jpg]] | [[File:breadbord.jpg]] | ||
− | Circuit with one resistor | + | '''Circuit with one resistor''' |
+ | |||
+ | |||
Brown, green, red, gold | Brown, green, red, gold | ||
+ | |||
First digit=1, second digit=5, multiplier 100, tolerance= 5% | First digit=1, second digit=5, multiplier 100, tolerance= 5% | ||
+ | |||
15x100=1500 1,5 k ohms | 15x100=1500 1,5 k ohms | ||
+ | |||
R = V/I 9 V : 6 I = 1,5 kilo ohms | R = V/I 9 V : 6 I = 1,5 kilo ohms | ||
+ | |||
I = V/R 9 V : 1,5 ohms = 6 ampere | I = V/R 9 V : 1,5 ohms = 6 ampere | ||
+ | |||
V = IxR 6 x 1,5 = 9 V | V = IxR 6 x 1,5 = 9 V | ||
+ | |||
6 x 1,5 ohms = 9 | 6 x 1,5 ohms = 9 | ||
+ | |||
9 volt battery | 9 volt battery | ||
− | What is the voltage across the resistor | + | |
+ | |||
+ | ''What is the voltage across the resistor'' | ||
+ | |||
+ | |||
Voltage drop is 0,1,4 V | Voltage drop is 0,1,4 V | ||
− | What is the current through the resistor | + | |
+ | |||
+ | ''What is the current through the resistor'' | ||
+ | |||
6 amp | 6 amp | ||
− | What happens to the current and voltage if you double the resistor value | + | |
+ | '' | ||
+ | What happens to the current and voltage if you double the resistor value'' | ||
+ | |||
Current stays the same and voltage doubles | Current stays the same and voltage doubles | ||
− | What happens to the current and voltage if you half the resistor value | + | |
+ | |||
+ | ''What happens to the current and voltage if you half the resistor value'' | ||
+ | |||
Current stays the same and voltage is split in half | Current stays the same and voltage is split in half | ||
− | Circuit with two resistors | + | |
+ | |||
+ | '''Circuit with two resistors''' | ||
+ | |||
+ | |||
Brown, black, orange, gold | Brown, black, orange, gold | ||
+ | |||
First digit=1, second digit=0, multiplier 1, tolerance= 5% | First digit=1, second digit=0, multiplier 1, tolerance= 5% | ||
+ | |||
1. x100=10 k ohms | 1. x100=10 k ohms | ||
+ | |||
9 volt battery | 9 volt battery | ||
+ | |||
R = V/I 9 V : 6 I = 10 kilo ohms | R = V/I 9 V : 6 I = 10 kilo ohms | ||
+ | |||
I = V/R 9 V : 10 ohms = 0,9 ampere | I = V/R 9 V : 10 ohms = 0,9 ampere | ||
+ | |||
V = IxR 6 x 1,5 = 9 V | V = IxR 6 x 1,5 = 9 V | ||
+ | |||
Voltage drop = 0,9 x 10 ohms = 9 | Voltage drop = 0,9 x 10 ohms = 9 | ||
− | What is the voltage across each resistor | + | |
+ | |||
+ | ''What is the voltage across each resistor'' | ||
+ | |||
Voltage drop is 9 | Voltage drop is 9 | ||
− | What is the current through each resistor | + | |
+ | |||
+ | ''What is the current through each resistor'' | ||
+ | |||
9 amp | 9 amp | ||
− | What happens to the current and voltage if you double the resistor value of one resistor | + | |
+ | |||
+ | ''What happens to the current and voltage if you double the resistor value of one resistor'' | ||
+ | |||
Current stays the same and voltage doubles | Current stays the same and voltage doubles | ||
− | Circuit with three or more series resistors | + | |
+ | |||
+ | '''Circuit with three or more series resistors''' | ||
+ | |||
+ | |||
Orange, orange, orange, gold | Orange, orange, orange, gold | ||
+ | |||
First digit=3, second digit=3, multiplier 1, tolerance= 5% | First digit=3, second digit=3, multiplier 1, tolerance= 5% | ||
+ | |||
3.3x100=33 k ohms | 3.3x100=33 k ohms | ||
+ | |||
9 volt battery | 9 volt battery | ||
+ | |||
R = V/I 9 V : 0,27 I = 33 kilo ohms | R = V/I 9 V : 0,27 I = 33 kilo ohms | ||
+ | |||
I = V/R 9 V : 33 ohms = 0,27 ampere | I = V/R 9 V : 33 ohms = 0,27 ampere | ||
+ | |||
V = IxR 0,27 x 33 = 9 V | V = IxR 0,27 x 33 = 9 V | ||
+ | |||
Voltage drop = 0,27 x 33 ohms = 8,91 drop | Voltage drop = 0,27 x 33 ohms = 8,91 drop | ||
− | What is the voltage across each resistor | + | |
+ | |||
+ | ''What is the voltage across each resistor'' | ||
+ | |||
Voltage drop is 8,9 | Voltage drop is 8,9 | ||
− | What is the current through each resistor | + | |
+ | |||
+ | ''What is the current through each resistor'' | ||
+ | |||
9 amp | 9 amp | ||
− | What happens to the current and voltage if you double the resistor value of one resistor | + | |
+ | |||
+ | ''What happens to the current and voltage if you double the resistor value of one resistor'' | ||
+ | |||
+ | |||
Current stays the same and voltage doubles | Current stays the same and voltage doubles | ||
Revision as of 23:08, 29 June 2015
Documentation
'-- Huiswerk:
Circuit with one resistor
Brown, green, red, gold
First digit=1, second digit=5, multiplier 100, tolerance= 5%
15x100=1500 1,5 k ohms
R = V/I 9 V : 6 I = 1,5 kilo ohms
I = V/R 9 V : 1,5 ohms = 6 ampere
V = IxR 6 x 1,5 = 9 V
6 x 1,5 ohms = 9
9 volt battery
What is the voltage across the resistor
Voltage drop is 0,1,4 V
What is the current through the resistor
6 amp
What happens to the current and voltage if you double the resistor value
Current stays the same and voltage doubles
What happens to the current and voltage if you half the resistor value
Current stays the same and voltage is split in half
Circuit with two resistors
Brown, black, orange, gold
First digit=1, second digit=0, multiplier 1, tolerance= 5%
1. x100=10 k ohms
9 volt battery
R = V/I 9 V : 6 I = 10 kilo ohms
I = V/R 9 V : 10 ohms = 0,9 ampere
V = IxR 6 x 1,5 = 9 V
Voltage drop = 0,9 x 10 ohms = 9
What is the voltage across each resistor
Voltage drop is 9
What is the current through each resistor
9 amp
What happens to the current and voltage if you double the resistor value of one resistor
Current stays the same and voltage doubles
Circuit with three or more series resistors
Orange, orange, orange, gold
First digit=3, second digit=3, multiplier 1, tolerance= 5%
3.3x100=33 k ohms
9 volt battery
R = V/I 9 V : 0,27 I = 33 kilo ohms
I = V/R 9 V : 33 ohms = 0,27 ampere
V = IxR 0,27 x 33 = 9 V
Voltage drop = 0,27 x 33 ohms = 8,91 drop
What is the voltage across each resistor
Voltage drop is 8,9
What is the current through each resistor
9 amp
What happens to the current and voltage if you double the resistor value of one resistor
Current stays the same and voltage doubles
-- Water level alarm circuit (555)
-- Ets chipp
-- Water alarm clock
Geïnspireerd door het water level alarm circuit kwam ik op het idee om een wekker te maken die het vrijwel onmogelijk maakt om je te kunnen verslapen. De oppositie van de snooze button, die ik zelf maar al te graag gebruik. Een wekker die alleen uitgaat wanneer je onder de douche springt.
Ik begon met het zoeken van alarm circuits om deze inhoudelijk beter te begrijpen.
Mijn project bestaat eigenlijk uit twee afzonderlijke apparaten. De wekker, uiteraard gevestigd in de slaapkamer en de 'uitknop' gevestigd in de douche dat reageert op water.
Dit betekende dat ik een draadloze verbinding moest verwerken in een circuit. Daarbij dacht ik ten eerste aan een bluetooth boxje. Dit besloot ik verder te onderzoeken door circuit diagrammen te onderzoeken.
Helaas heeft bluetooth een beperking als het gaat om afstand en verbinding. Ik begon te bedenken in welke apparaten een draadloze verbinding voorkomt die niet via bluetooth bereikt word maar toch een simpel apparaat is. Deze gedachte bracht mij bij een draadloze deurbel.
Voor mijn project heb ik dus gebruik gemaakt van twee apparaten om mijn wekker te realiseren. Een draadloze deurbel en een alarm clock. Deze maakte ik ook open om de werking van het circuit proberen te begrijpen.
stappen
Eind product
ontwerp
Voor het ontwerp gebruik ik de 20 vlakkige vorm Icosoheidron, de geometrische vorm voor water volgens Plato.