Questions tagged [gauge]

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34 views

Wire guage to connect to chassis in van

I'm building an AC electrical system for my van conversion and I'd like to know if there's a minimum wire gauge I should use to connect my negative bus bar to my van's chassis. Specs: I'm running a ...
0
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2answers
75 views

What would be suitable wiring for a 52V DC 30A 1000W e-bike?

So I bought a 12AWG RW90 wire from homedepot and I think it caused my anderson pp45 connector to blow. I'm looking at the wiring for my motor and battery, and they both look like 12 gauge wires. And I'...
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1answer
77 views

Need tips on creating a custom usb cable

In short, I have two questions: Does shielding matter for a USB2.0 cable inside a computer? The length is about 50 cm. Is the requirement that data wires should be thicker than data ones still valid ...
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1answer
62 views

Gauging Wire for 12V Parallel Circuit

I'm building a 12V parallel circuit to run some LEDs...I simplified it in the picture below but need some advice on wire sizing in a parallel circuit. The combined amps of the 3 lights is ~11.25amps. ...
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2answers
101 views

Can I double 16 gauge wire? [closed]

I have seen several similar questions on the internet but I can't find a straight answer. I have a ton of used single strand 16 gauge wire that I would like to use. I know that 16 gauge wire typically ...
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1answer
73 views

Tachometer air core meter - how does it operate?

This is a question from a total noob, out of pure curiosity. I've been tinkering with my bike's instrument panel and took it apart - I found out that this sin-cos marking is the base of the air core ...
1
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1answer
50 views

How are analog thermocouple meters calibrated?

In most modern thermocouple measuring equipment, the input is high impedance and approximates a perfect voltmeter. This makes the thermocouple measurement easy because there is no current flowing ...
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4answers
125 views

Tap into 12AWG wire with 20AWG wire

I am using 3 of these Mighty Max 12V 12Ah batteries on my Razor MX650 electric bike and they are connected with 12 gauge wire. I would like to tap into the power on one of the batteries with a 20 ...
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0answers
112 views

Will I run into a problem if I use an 18AWG extension cable for 240V device?

I currently have a length of SOOW 18AWG with ground connected to my breaker box. One lead is connected to phase 1 on a 15A breaker. One lead is connected to phase 2 on a 15A breaker. ...3 is ground/...
4
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4answers
1k views

How to calculate maximum input power on a speaker?

I got into this rabbit hole while trying to replace the speaker wire in my setup. I have speakers with 8 Ω of resistance (Rspeaker) and a maximum input power of 140 Watts, so I wanted wires that would ...
0
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1answer
88 views

Programming stepper motors to smoothly show value that is refreshed at certain intervals

I am making analog speedo and rpm gauge for both a bike and a car using x27.168 stepper motors and AX1201728SG motor driver. I have encountered quite a problem with showing data that is not constantly ...
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2answers
511 views

Can I use Dupont wires for power delivery?

For a small hobby project I'm trying to control an LED strip from a phone. To prototype this, I will simply use a breadboard. I have an external 12V power supply and the strip will use at most, 1.5 ...
0
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1answer
47 views

Ceiling lamp, 14 gauge, not 18 gauge

I've Googled this very hard, and I'm not coming up with any good answers. This question seems very simple: Are there ceiling lights/lamps in the market that have a 14-gauge wire for the black/white/...
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3answers
374 views

Can I use 18AWG wire instead of 22AWG when doing guitar pedal modifications?

I'm planning on doing some modifications to my Dunlop GCB95 Cry Baby wah pedal. As far as I can tell, the hookup wire in the pedal is 22AWG (it's difficult to read what's printed on the side). The ...
0
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2answers
201 views

How many amps between batteries that are wired in parallel?

How many amps will flow through the cables between my batteries if I have 2 batteries wired in parallel? Let's look at a simple example: We've got 2 batteries in parallel, and one 12v lamp that ...
2
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1answer
231 views

What type of wire should i use to make a jumper on the PCB control board from my dryer? [closed]

Sorry for my ignorance on this topic. The relay (part G8P-1A4P 12VDC by Omron) on the PCB control board of my clothes dryer went bad. As a result, one of the pins and circle around the pin (sorry dont ...
1
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1answer
381 views

UPS output max cable length [closed]

I want to add 2x UPS PowerWalker VI 2200 UPS 1200W in the next room. Is it safe to add 2 Power Strip of 6M ? What Cord Gauge do I need ? UPS page https://powerwalker.com/?page=product&item=...
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2answers
507 views

Split output of one temperature sensor to two independent signals using an op amp buffer [duplicate]

First off I am a car guy, if I have a schematic or details I can solder what I need. I have a client that fitted a digital temperature gauge to his car, he also wants to have the gauge on the ...
1
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3answers
186 views

Copper wire current ratings [duplicate]

I have seen a wide variety of different estimates for the maximum current rating for copper wire. For example, for 24-gauge copper wire, the Wikipedia article about "American wire gauge" claims that ...
1
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1answer
527 views

On a wire designated as '3x14AWG' what does the '3x' part mean?

On a wire designated as '3x14AWG' what does the '3x' part mean? It is on a wire that is part of a surge protector power strip.
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2answers
121 views

Is it bad practice to connect wires of vastly different gauges?

I would like to connect an Anderson plug with 25mm² cable to a 12V AGM battery so that I can easily connect and disconnect different devices which will conduct currents of varying amperage. I may ...
0
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1answer
165 views

Unstable wheatstone bridge simulator circuit - help required [closed]

simulate this circuit – Schematic created using CircuitLab I am looking to implement a wheatstone bridge circuit so I can accurately adjust the signal into a strain gauge amplifier circuit. Is ...
0
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1answer
166 views

Mixing wire gauge questions

I am putting a 50W 3.4A max 12V solar panel on my camper van. I want the option of removing it from my roof racks & mounting it remotely (so I can park in shade, but still have the panel in the ...
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1answer
120 views

DIY water tank gauge using analogue ammeter - linearity

A follow up question to my previous on building a DIY water gauge DIY water tank gauge using analogue ammeter. I have scrabbled together a "Euro type" sender (10 Ω empty - 180 Ω full) and ...
3
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2answers
142 views

DIY water tank gauge using analogue ammeter

Our (old) boat has a fresh water tank whose level was reported by a now broken gauge. For cosmetic reasons I need to replace the broken gauge with a similar form factor (I do not wish to cut the panel ...
-1
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1answer
3k views

What nichrome wire voltage/amps is required to heat 1 meter [closed]

How can I work out what voltage and amps are required to heat nichrome to: Temperature: 220 F Length: 100 cm Gauge: 20 (0.85 mm diameter, 1.62 ohms per meter) I think I need 7 volts and 3 amps. I ...
0
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1answer
179 views

Is this cheap extension cord safely rated for 1625W?

Comparing two cables that I have, a cheap extension cord and an expensive "heavy duty" extension cord, both are rated for the same load. Is this an inflated rating or is it accurate for the white ...
-3
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2answers
5k views

How can I calculate length of wire, given its gauge and resistance?

As the title suggests; I am trying to calculate the length of a wire given its gauge and resistance in ohms per 1000 feet. I also have the amount of voltage drop, which is 1.1 V. ...
-2
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1answer
3k views

What wire gauge for use for JST-XH connectors with and without insulation?

I bought a variety kit of JST-XH connectors on ebay: The auction says: Wire Range: AWG 32-24 Insulation O.D.: 1.00mm (Max) But Wikipedia says that this connector supports AWG 30-22 and does ...
2
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1answer
383 views

Charger, load sharing and Fuel gauge

I'm designing a battery powered circuit where I would like to charge the battery via USB, and monitor the remaining battery capacity during operation. I'm using the following IC's: MCP73831 (charger)...
2
votes
1answer
598 views

What adhesive is best to glue strain gauges to metal?

I'm trying to use these strain gauges to measure bending of a metallic cantilever (metal TBD). Does anyone know what adhesive I can use to glue the strain gauges? I'd rather not have to use an oven ...
0
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1answer
97 views

Simulate Automotive Speedometer Sender

I am working on a project and I have run into a little bit of a problem. I have a speedometer gauge that I am trying to send a signal to on a bench (out of car). The way in wich the it works is ...
0
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1answer
372 views

NiMH Batteries and Fuel Gauge

I'm currently trying to figure out the best way to make use of my gas gauge LTC2943-1 in conjunction with my pack of NiMH batteries. I am aware that voltage alone is not a sufficient measure of the ...
1
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2answers
593 views

A 5V @ 1A wifi surveillance camera placed 50ft away (indoor)

I need to place a Wifi surveillance camera near the entrance of my house where no power outlet is in that area. I pulled a wire wrapping wire (awg 30) to the target location without thinking about ...
0
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1answer
40 views

Wire Length Restrictions on Simple Battery Powered Circuit

Right now I am setting up a simple circuit with a switch at one end and a LED on the other. Basically it is going to be used for someone on one end to get the attention of the person on the other. The ...
2
votes
1answer
1k views

How to determine number of allowable wires in a crimp wire connector?

I bought a pack of single-ended crimp-style connectors at a standard hardware store. The data sheet specifies allowable wire configurations, but I am having trouble reading it. The linked data sheet ...
0
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4answers
10k views

Can small wire gauge restrict current? powering a brushless motor

The question is related to quadcopters and else. So my quadcopter (brushless dc motors and electronic speed controllers powere by 3cell lithium battery 2700mah 25C) has thin wires on the main power ...
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3answers
1k views

How to measure 6S LIPO battery juice in percentage from Raspberry Pi?

I've got a Raspberry Pi and I want to use it to measure the percentage of charge which a 6S LIPO battery pack has left which I then send to a server over the internet. I assumed there would be easy ...
0
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2answers
401 views

Lead acid battery charger and fuel gauge?

Can someone recommend me a lead acid battery charger and monitoring circuit? I've found such circuits for lithium batteries, but not for lead acid. Alternatively, I could use two circuits, one for ...
0
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1answer
431 views

Air-core gauge driver

My job is to redesign an existing product driving two gauges, currently based on PIC and obsolete Phillips SA5777A air-core gauge driver. I am free to make the design from scratch, but cannot change ...
0
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2answers
57 views

long leads for batteries, how to minimize negative effects

I just made a circuit consisting of a number of digital components including two microcontrollers and I will be adding a home-made radio unit to it. I will make a few other miniature circuits which ...
0
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1answer
234 views

Are Inclinometers/Angle Gauge's independent of gravity

To give a bit of background, I am working on a DIY wheel alignment just to save some money and possibly learn a thing or two. The camber/caster involves measuring an angle that is parallel to the ...
1
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1answer
893 views

what size cable for powering an LED sculpture?

I've got four 60 amp 5 volt power supplies, and I'm sending power to a sculpture with 3000 RGB leds. So here's the total power picture we're looking at... 3000 * 5 volts * 3 leds per pixel * .02 amps ...
0
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1answer
300 views

Determine small gauge wire (I think) from mm measurement

Below is a question I thought would be helpful to figure out a certain gauge of wire. Physically determine unknown wire's gauge My wire is .27 mm per strand in diameter, and has 10 strands. I ...
0
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1answer
45 views

Using a digital ammeter to loop power a pressure gauge

I'm trying to set up a digital pressure gauge which gives out a 4-20mA signal and needs to be loop powered. Rather than buying a digital pressure meter, I'm thinking of purchasing a 12-30 VDC power ...
1
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3answers
687 views

Battery gauge – Microcontroller 3.3V using a 4.8V NiMh battery source

Well I am currently working on building a battery gauge via LED. My target is a red LED to blink if batteries are going to die and a green LED to blink if the batteries are fine. Researching on ...
1
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2answers
1k views

LED lighting project wiring Questions

let me begin by thanking anyone and everyone for any help. I have a serious lighting project and am likely getting very ambitious. I am trying to wire up a series of WS2812 LED strips. Each 2 ...
3
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2answers
5k views

Is there a way to calculate the proper wire gauge?

I'm looking for the right copper wire gauge for my project. I've found several charts listing the maximum current that various gauges, solid and stranded, can transmit. The charts often disagree. ...
2
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4answers
52k views

Increasing wire gauge by twisting pairs

I have a cable like this with 4 wires inside. Each wire is 20 AWG. I've been told that I can twist the ends together (i.e. green and red, white and black) on both ends of the cable and this will ...
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2answers
1k views

Does gauge size of a signal wire has an effect to its susseptability to electromagnetic interference?

Let's say you have the option to use a lower gauge wire size (i.e. thicker wire) for a signal wire that happens to be run along power wires. Will it pick up more electromagnetic interference than ...