CIRCUITO PUENTE DE WHEATSTONE PDF
El puente de Wheatstone deriva su nombre del físico inglés Sir En un circuito puente, la disposición de las resistencias que lo caracterizan. Un Kelvin puente, también llamado puente de Kelvin doble y en algunos países Puente de Para medir tales resistencias, se requiere un circuito de puente diseñado para trabajar con resistencias de La operación del puente de Kelvin es muy similar al puente de Wheatstone, pero utiliza dos resistores adicionales. Un pont de Wheatstone és un instrument elèctric de mesura inventat per Samuel Hunter Christie el , millorat i popularitzat per Sir Charles Wheatstone a.
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The Wheatstone bridge is the fundamental bridge, but there are other modifications that can be made to measure various kinds of resistances when the fundamental Wheatstone bridge is not suitable.
Puente de Kelvin – Wikipedia, la enciclopedia libre
On the other hand, wheatstonee the resistance of the galvanometer is high circuiti that I G is negligible, it is possible to compute R x from the three other resistor values wheatztone the supply voltage V Sor the supply voltage from all four resistor values.
Views Read Edit View history. The desired value of R x is now known to be given as:. Accelerometer Angular rate sensor Auxanometer Capacitive displacement sensor Capacitive sensing Gravimeter Inclinometer Integrated circuit piezoelectric sensor Laser rangefinder Laser surface velocimeter Lidar Linear encoder Linear variable differential transformer Liquid capacitive inclinometers Odometer Photoelectric sensor Piezoelectric accelerometer Position sensor Rotary encoder Rotary variable differential transformer Selsyn Sudden Motion Sensor Tachometer Tilt sensor Ultrasonic thickness gauge Variable reluctance sensor Velocity receiver.
Puente de Kelvin
At this point, the voltage between the two midpoints B and D will be zero. Air—fuel ratio meter Blind spot monitor Crankshaft position sensor Curb feeler Defect detector Engine coolant temperature sensor Hall effect sensor MAP sensor Mass flow sensor Omniview technology Oxygen sensor Parking sensors Radar gun Speed sensor Speedometer Throttle position sensor Tire-pressure monitoring system Torque sensor Transmission fluid temperature sensor Turbine speed sensor Variable reluctance sensor Vehicle speed sensor Water sensor Wheel speed sensor.
Diode bridge H bridge.
This page was last edited on 8 Novemberat From Wikipedia, the free encyclopedia. Published in “Engineering Science and Education Journal”, volume 10, no 1, Februarypages 37— In other projects Wikimedia Commons.
Pont de Wheatstone – Viquipèdia, l’enciclopèdia lliure
Geophone Hydrophone Microphone Seismometer. Variations on the Wheatstone bridge can be used to measure capacitanceinductanceimpedance and other quantities, such as the amount of combustible gases in a sample, citcuito an explosimeter. Breathalyzer Carbon dioxide sensor Carbon monoxide detector Catalytic bead sensor Chemical field-effect transistor Electrochemical gas sensor Electrolyte—insulator—semiconductor sensor Electronic nose Fluorescent chloride sensors Holographic sensor Hydrocarbon dew point analyzer Hydrogen sensor Hydrogen sulfide sensor Infrared point sensor Ion selective electrode Microwave chemistry sensor Nitrogen oxide sensor Nondispersive infrared sensor Olfactometer Optode Oxygen sensor Pellistor pH glass electrode Potentiometric sensor Redox electrode Smoke detector Zinc oxide nanorod sensor.
Some of the modifications are:. This setup is frequently used in strain gauge and resistance thermometer measurements, as it is usually faster to read a voltage level off a meter than to adjust a resistance to zero the voltage.
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One of the Wheatstone bridge’s initial uses was for the purpose of soils analysis and comparison. The Kelvin bridge was specially adapted from the Wheatstone bridge for measuring very low resistances.
Retrieved from ” https: The equations for this are:. In many cases, the significance of measuring the unknown resistance is related to measuring the impact of some physical phenomenon such as force, temperature, pressure, etc. The Wheatstone bridge illustrates the concept of a difference measurement, which can be extremely accurate. Kelvin wwheatstone Wheatstone bridge. The concept was extended to alternating current measurements by James Clerk Maxwell in and further improved by Alan Blumlein around A Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuitone leg of which includes the unknown component.
First, Kirchhoff’s first law is used to find the currents in junctions B and D:. Detecting zero current with a galvanometer can be done to extremely high precision. Schering Bridge Wien bridge.