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What type of speed control system uses a wire -wound potentiometer?
Wiki User
∙ 10y ago
A potentiometer is another name for a variable resister used for voltage dividing. Potentiometers have three tabs on them The two outer most tabs have the full resistance of the device across them. The center tab is connected to the wiper that slides across the surface of the resister. A voltage is applied to the two outside tabs on the potentiometer. A voltage of your choosing will appear across either the left tab to the center wiper tab or from the right tab and the center wiper tab. A potentiometer of this type is used to control the speed output of variable frequency drives. A 10K potentiometer has 10VDC applied across the two outside tabs If the drive sees the full 10 volts it allows the drive to go to full output and the motor will run at full speed. With the potentiometer's center tab wiper at half position a voltage of 5 VDC will appear to the drive. When the drive sees the 5 volts it tells the drive to go to half speed output and the motor will run at half speed. This potentiometer is linear so no matter where the wiper is positioned, the motor speed will follow the potentiometer settings from 1% right up to 100%
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoThe type of speed control system which uses a wire-wound potentiometer is a windshield wiper. Also called a variable resistor, a potentiometer manipulates voltage to fire at intervals.
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Are the motor used in tape recorder are split phase?
AC motors are not suitable for tape recorders because the speed can not be kept sufficiently constant. Tape recorders use dc shunt-wound motors with electronic speed control.
How many types of potentiometer?
There are basically two types of resistors.-Fixed resistors-Variable resistorsFIXED TYPE:Fixed resistors are classified into 4 types based on various factors like manufacturing style,resistance range,power rating etc.The four types of fixed resistors are1)Carbon composition2)Carbon film3)Metal film(again classified into thick film resistors and thin film resistors)4)Wire wound-which consists of power style type and precision style typeVARIABLE TYPE:They are used in electronic circuits to adjust the value of voltages and currents.Ex. They are used in televisions as volume control,brightness control etc. There are three types of variable resistors.They are1)Potentiometer-classified into carbon potentiometer and wire wound potentiometer2)Rheostat3)TrimmerWire-wound, carbon compound, metal strip, and in modern times, the silicon transistors in linear region are used as resistors
How do you get 12V DC to 9V DC with a pot and if it can be done what value pot?
The answer is a very-qualified "yes." Assuming that you buffer the output (see below), any value potentiometer can be used to get 9V from 12V. Assuming a round, linear taper pot (see below), you will get 9V at the tap when you turn the knob approximately 1/4 of the way from maximum output. A potentiometer (or "pot") is a 3 terminal device consisting of two "fixed contacts" at the ends of a (typically) wire-wound resistor and one "wiper contact" or "tap" that can be moved along the resistor. If you apply a 12V source to the fixed contacts of a potentiometer, you will be able to adjust the tap to any voltage between 12V and 0V. In many applications, the tap serves as a reference value. This means that you don't load the tap directly but instead buffer it using an amplification stage to drive your load. If you apply the load directly to the tap, it will change the voltage value and generally make your design more complicated. In cases where the load is tied directly to the tap, the pot is often wired differently in a configuration called a rheostat. When you choose your potentiometer, there are a few parameters you want to pay attention to: 1. The value of the potentiometer (e.g. 1K ohms) is the value of the resistance between the fixed contacts when the tap is left open. This value is important because it usually determines the amount of current drawn from the source. If you're replacing a potentiometer that has burned out, make sure to match this value with the one you're removing. 2. The power rating of the potentiometer (e.g. 0.5W) is how much power the potentiometer can dissipate safely. Make sure that the power rating is high enough for your application or it will burn out. 3. The taper of the potentiometer (e.g. linear or logarithmic) describes how the position of the tap changes with travel. Audio applications typically use a logarithmic potentiometer because our ears distinguish sound intensity logarithmically (something that sounds "twice as loud" is probably causing several powers of ten times as much energy to strike your eardrum). If you get the wrong taper, adjusting the potentiometer will feel "wrong" and either the change will be too great or not noticeable for most of the travel.
What is slipring motor?
Generally Slip Rings are MERCURY WETTED.The standard slip ring circuit consists of a pair of sintered metal copper/graphite brushes making contact with a brass ring.
Another name for y -or wye - connected system of a polyphase power is?
It is not true that another name for the "Y" or "wye-connected" system of polyphase power is the "delta" system. It's called the "star" system.
Why is it important to control wound infection?
If we don't control the infection in a wound, then the wound can get worse, we could develop blood poisoning, and we could ultimately die.
Why is the clinostat serving as the control wound up?
No
How would you control a bleeding wound?
Apply direct pressure with a sterile dressing on top of the wound.
How do you speed up healing of surgical wound?
Ice it as often as you can.
To control bleeding?
There is only one way you can get control of bleeding. You will have to put pressure on the wound.
How can a caregiver control the flow of blood from a child's wound?
A caregiver can control the flow of blood from a child's wound by elevating the wound (if feasible) and by applying direct pressure. For instance, a caregiver can raise a child's arm over her head and apply direct pressure to the wound to decrease bleeding from a finger laceration.
How do you increase angle near about 359 in servo wire wound potentiometer?
Use a gear set, or use a multi-turn potentiometer. They also make 360 degree potentiometers for this purpose - they generally have four taps that you can feed out-of-phase reference signals to in order to measure the position. The Link GAT-1 trainer, an older aircraft simulator, used this technology.
What method can be used to control the speed of rotation of a 3 phase induction motor?
USE VARIABLE SPEED DRIVE (VSD) OR ALSO CALLED VARIABLE FREQUENCY DRIVE (VFD). THE PRINCIPLE IS TO VARY OR CHANGE THE FREQUENCY WITHOUT AFFECTING THE VOLTAGE. THIS IS ONE SOLUTION TO ENERGY MANAGEMENT AND COMBINED TO BUILDING AUTOMATION SYSTEM OR BUILDING MANAGEMENT SYSTEM.
Can alum be for closing up wound?
Alum should never be used for closing wounds or to control bleeding. If you have a deep wound or a puncture wound you should seek medical assistance.
How do save a vampires victim?
i don't think u can stop it because if a vampire has only a bit of control over him or her self it stil isn't enough to control him or herself so since they have alot of strength and speed they would probly kill or wound u too.
Are the motor used in tape recorder are split phase?
AC motors are not suitable for tape recorders because the speed can not be kept sufficiently constant. Tape recorders use dc shunt-wound motors with electronic speed control.
What is neoprene used for?
Neoprene is commonly used in the manufacturing of wetsuits, athletic braces, laptop sleeves, and medical supports due to its water-resistant and elasticity properties. Additionally, it is used in the automotive industry for weatherstripping and hoses due to its resistance to oil and heat.
