Energy Band Gap By Four Probe Method

Product Description

We are counted among the trusted supplier of Energy Band Gap By Four Probe Method With Pc Inter to our huge clientele base It is designed using finest of raw material and machinery at our vendors unit as per the industrial laid norms and standards Energy Band Gap By Four Probe Method With Pc Inter is tested on various parameters at our unit prior to dispatch to ensure the no compromise is done with its quality at any stage We hence serve a flawless range to our esteemed clients

Dual Digital Voltmeter

In this unit 3 12 digit single chip AD converter ICL 7107 has been used

It has high accuracy auto zero to less than 10m V  zero driftless than 1m V C input bias current of 10m A and roll over error of less than one count

Since the use of internal reference causes the degradation in Performance due to internal heating an external reference has been used

Technical Specification

Range  02000 mV  02000 V

Resolution  100mV at 200mV range

Accuracy   01 of reading 1 digit

Impedance  10M Ohm

Display  3 12 digit 7 segment Display

125mm height with auto polarity and decimal Indication

Constant Current Generator

It is a IC regulated current generator to provide a constant current to the outer probes irrespective of the changing resistance of the

sample due to change in temperatures

The basic scheme is to use the feedback principle to limit the load current of the supply to preset maximum value

Variations in the current are achieved by a potentiometer included for that purpose

The supply is a highly regulated and practically ripple free DC Source

The current is measured by the digital panel meter

Open circuit voltage  18V

Current range  020mA

Resolution  10 microA

Accuracy   025 of the reading  1digit

Load regulation  005 for 0 to full load

Line regulation  003 for 10 changes

Oven Power Supply

Suitable voltage for the oven is obtained through a step down

transformer with a provision for low and high rates of heating

A glowing LED indicates when the oven power supply is ON