DVM Archive

Construction of ramp type DVM (digital voltmeter)

The ramp type DVM (digital voltmeter) uses a linear ramp or staircase ramp technique. The staircase ramp technique is a simpler version of linear ramp technique. The block diagram of ramp type DVM is shown in above

Construction of successive approximation type DVM (Digital voltmeter)

  The successive approximation type DVM is special type of potentiometric DVM in which a digital divider is used in the place of linear divider. The servomotor replaced by electromagnetic logic. The comparator compares the output of

Advantages and disadvantages of successive approximation type DVM (digital voltmeter)

There are some advantages of successive approximation type DVM which are given below, It is economical method of analog to digital conversion. The resolution is up to 5 important digits are obtained. There are some disadvantages of

Advantages and disadvantages of ramp type DVM (digital voltmeter)

There are some advantages of ramp type DVM (digital voltmeter) which are given below, It has a better resolution and it can be adjusted because the resolution of digital readout is proportional to the frequency of local
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