Double Ratio Box (AVI-EE - 524)

For use with the above bridge.

Precision Kelvin Bridge (AVI-EE - 525)

The bridge is capable of measuring resistance from 10 to 1 ohm. 10 coils, of 0.1 ohm are arranged on a rotary dial. A slide wire reads resistance in steps of 0.001 ohm. The bridge is provided with a multiple of 0.1, thus enabling he bridge to be used for measurement up to 0.0001 ohm. Separate current and potential terminals are provided. Coils are of double Eureka wire and are all properly aged. All coils are calibrated on imported testing bridge. Accuracy of adjustment is ±0.1%.

Industrial Kelvin Bridge (AVI-EE - 526)

This Kelvin Bridge has been designed for use of cable and wire manufactures whose products are called upon to meet very close specification in resistance per unit length. It is compact robust and simple in operation, yet enable measurements to be carried out with highest attainable precision Standard resistance and side wire are made of covered wire and properly aged. The maximum permissible current 10 amps. All coils are calibrated on Imported Testing Bridge.

Conductivity Attachment (AVI-EE - 526 a)

For the Industrial Kelvin Bridge.

Spot Reflecting Galvanometer (AVI-EE - 526 b)

Very sensitive and accurate galvanometer for the use of measuring resistances with Wheatstone bridges and Kelvin Bridges etc.

D.C. Source (AVI-EE - 526 c)

Power supply for above Kelvin Bridge 10 Amp.

Platinum Resistance Thermometer (AVI-EE - 527)

Enclosed in pyrex glass tube or aluminium tube of approsimately 30 cms long & 2 cms diameter. A fine platinum wire is wound on the mica. Its resistance is approximately 2.8 ohms. Two compensatory leads are connected to four terminals on a square block. The terminals are marked CL and PL to represent compensating and platinum leads.

Schering Bridge (AVI-EE - 528)

This is four arms bridge to perfect measurements of self inductance and capacitance. All the resistances are calibrated on imported Testing Bridge Wien's Bridge
This instrument is designed for measurement of capacitance according to Wien's method. All the resistances are calibrated on Imported Testing Bridge.