Read About What Is A Systematic Error In Brief.

Read About What Is A Systematic Error In Brief.

Systematic error is a consistent, repeatable error which is associated with the use of faulty equipment or a flaw in design of experiment. These errors occur due to measuring instruments which are incorrectly calibrated. However, they can destroy your experiment from many sources, involving:

• A worn-out instrument. E.g.if a plastic tape measure becomes slightly expanded over the years, it will result in measurements that are too high.
• An incorrectly calibrated instrument, like a scale that doesn’t observe zero when nothing is on it.

Read About What Is A Systematic Error In Brief.

In experimental observations, systematic errors normally come from the measuring instruments and it can happen if there is a problem with the instrument or its data handling system or the instrument is used incorrectly by the experimenter. Two types of systematic error can happen with instruments having linear response:

• Offset or zero setting error – this happens when the instrument doesn’t read zero when the quantity to be measured is zero.
• Multiplier or scale factor error – this happens when the instrument consistently reads changes in the quantity to be measured greater or less than the actual changes.

There is another error called random error where the cause of the error is unknown and unpredictable changes in the experiment. The changes that cause the error may happen in the measuring instruments or in the condition of the environment.