The Error Involved In Making A Certain Measurement

Introduction

When we make measurements, we expect them to be accurate and precise. However, there are always errors involved in any measurement due to various factors such as instrumental errors, human errors, and environmental errors. In this article, we will discuss the errors involved in making a certain measurement, their types, and how to reduce them.

The Types of Errors

There are three types of errors involved in making a certain measurement: systematic errors, random errors, and gross errors.

Systematic Errors

Systematic errors are errors that occur due to a flaw in the measurement system. These errors are consistent and affect all measurements in the same way. They are caused by faulty instruments, incorrect calibration, or incorrect measurement techniques. Systematic errors can be reduced by calibrating the instruments and using the correct measurement techniques.

Random Errors

Random errors are errors that occur due to unpredictable factors such as environmental factors, human error, or limitations in the measurement system. These errors affect individual measurements randomly and can be reduced by taking multiple measurements and calculating the average.

Gross Errors

Gross errors are errors that occur due to mistakes or accidents during the measurement process. These errors can be avoided by following correct measurement procedures and being careful during the measurement.

The Effect of Errors on Measurements

Errors can affect the accuracy and precision of measurements. Accuracy refers to how close the measured value is to the actual value, while precision refers to how consistent the measured values are. Systematic errors affect the accuracy of measurements, while random errors affect the precision of measurements.

How to Reduce Errors

There are several ways to reduce errors in measurements. These include:

Calibration

Calibration is the process of adjusting the measurement system to ensure accuracy. Instruments should be calibrated regularly to ensure accurate measurements.

Multiple Measurements

Taking multiple measurements and calculating the average can reduce random errors and increase precision.

Correct Techniques

Using the correct measurement techniques and following correct procedures can reduce gross errors.

Environmental Control

Controlling the environment during measurements can reduce environmental errors.

Conclusion

In conclusion, errors are always involved in any measurement due to various factors such as instrumental errors, human errors, and environmental errors. These errors can affect the accuracy and precision of measurements. However, by understanding the types of errors and following correct measurement techniques, we can reduce errors and improve the accuracy and precision of measurements.