Does anyone know how to make a Wheatstone bridge?!?
Wheatstone bridge anyone… does anyone know anything about it like how to make one, how it works, or anything? 😆 Reply With Quote 25th December 2004 03:17 AM #2 TheOne View Profile View Forum Posts Private Message View Blog Entries View Articles Join Date Oct 2004 Location USA Posts 464 The bridge works on the principle of ratios. From the diagram: When balanced RV1/R3 = R1/R2 So if you have 1 unknown value for say R3, by taking ratios (when the bridge is balanced with no current flow in the uA meter) you can determine the unknown value. RV1 will be a precision adjustable component with calibrated scale or markings according to set value. R1 and R2 will also be very accurate components. You do get bridges to measure unknown capacitors, inductors and even unknown frequencies. Search Google for more Attached Images • wheatstone_132.gif (7.7 KB, 1201 views) \”You can\’t make a circuit fool-proof, cause fools are so ingenious!\” Reply With Quote 25th December 2004 11:19 AM #3 Nigel Go
