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How do you reduce power consumption of a Wheatstone Bridge without changing the bridge resistances?
It seems to me that there are two methods. Reduce the supply voltage to the bridge, or reduce the time that the supply voltage is connected (you could also apply both methods simultaneously). Which is best depends on the details of the application. 1. Reducing the supply voltage: The power consumption of the bridge will be proportional to the square of the supply voltage so halving the voltage will quarter the power consumption. It will also halve the voltage at the detector for any given imbalance so, to maintain the same resolution, the sensitivity of the detector needs to be increased by the same factor as the voltage. Clearly there are limits to this as the imbalance signal will eventually be lost in noise. 2. Reducing the time the supply is connected: It is possible to pulse the supply voltage and the power consumption will be reduced in proportion to the duty factor. Clearly the detector must be fast enough to take a reading during the time that the supply is connected. This might be done using a microcontroller - an output controlling the supply to the bridge and an A/D input to measure the imbalance signal.
What else can I help you with?
Explain the advantages of the wheatstone bridge method of measuring resistance?
The biggest advantage of the Wheatstone bridge is the accuracy of the resistance readings. I had two cables short out underground, by knowing the resistance of the wires per foot I located the fault within 3 feet of where the two wires touched each other.
How do you increase amperage without changing voltage or resistance?
You cannot increase amperage without changing voltage or resistance. Ohm's law states that voltage is current times resistance. You cannot change one alone. Not even changing frequency in a capacitive or inductive circuit will do this, because changing frequency represents a change in reactance, which is effectively a change in resistance.
How a rectifier transformer deffer from a power transformer?
rectifier transformer converts acinto dc.but,power transformer convert step up or step down ac energy without changing frequency
What is the greatest invention?
The world's greatest invention is probably the wheel. Just think about how much we use them in society and where our world would be without them. - Indoor Plumbing is another revolutionary life changing invention
How will you make an electromagnet stronger without changing the electric cell fitted to the circuit?
Well, darling, if you want to beef up your electromagnet without messing with the electric cell, you can wrap more coils of wire around the core. It's like giving your magnet a fancy new hairdo - more coils mean more magnetic field strength. Just make sure you don't go overboard and blow a fuse, we don't need any electrocuted geniuses on our hands.
What is Difference between ohmmeter and Wheatstone's bridge?
An ohmmeter is a device used to measure the resistance of a component or circuit by passing a current through it and measuring the voltage drop. In contrast, a Wheatstone's bridge is a circuit used to measure an unknown resistance by balancing it against known resistances in a bridge configuration, without passing a current through the unknown resistor. Wheatstone's bridge is more accurate for precise resistance measurements compared to an ohmmeter.
Can a nation develop without increasing energy consumption?
No, a nation cannot develop without increasing energy consumption. Though a nation might be able to develop by increasing the consumption of energy marginally over time, there is no way to continue a nation's development without added consumption of energy.
Does add color to water tell about changing matter without changing its shape?
does add color to water tell about changing matter without changing its shape
Is changing direction really the same as changing speed?
No. It is possible to change direction without changing speed. However, it is not possible to change direction without changing velocity.
What is a property that can be observed without changing the object?
Color is a property that can be observed without changing the object.
How do you connect several resistances if you want to decrease in total resistance without reducing the number of resistors?
The resistors should be connected in parallel .
What does the use of land for energy crops compete with?
Food crops both for human consumption and animal consumption. With a serious problem feeding the number of people on the planet and without a global initiative to sort that problem out changing fields from food crops to energy crops makes a very bad situation worse.
Without changing one substance into another?
A physical property can be observed without changing the substance into something else.
Could production and consumption take place with money?
could production and consumption take place without money
Can you get on facebook without changing your password?
NO
How do you get your iTunes password without changing it?
You don't
What property is a characteristic of a substance that can be observed without changing the substance into something else?
A physical property can be observed without changing the substance into something else.
