You can rate the importance of Test equipment by just this fact that almost all electronic/electrical equipments need the test equipment straight from initially designing new products or troubleshooting the existing devices to ensure proper operation. The repairs and maintainability of almost all electronic/electrical equipment requires the checks of test equipments.
If we use these test equipment properly, it helps in reducing the service and maintenance at frequent intervals of time and hence results in lesser system unavailability during the period of repairs. The familiarity with a test-equipment is a must if you need to be quick in DI/DR (defect identification and defect rectification). It will not be wrong to say that you can achieve proficiency on an electrical-equipment only when you master its relative test-equipment.
If we talk about the measurement involved with electronics, then we can not discard the measurement importance of voltage/current/capacitance/resistance/inductance etc. If the testing/fault finding of a circuit is required, then all the above mentioned electrical quantities cannot be neglected. It is why we have to consider all the electrical quantities and check for its correctness in order to determine the condition/defect of all components of a circuit.
It other words, we can say that a Test Equipment is used to create signals and capture the relative responses from DUTs (electronic Devices Under Test). By this way, we can easily prove the proper operation of the DUT and moreover trace faults in the device.
Today, if we think about practical electrical/electronics engineering i.e the field job, we should be able to use various kinds of test equipment ranging from the very simple and inexpensive like tester (a test light consisting of just a light bulb and a test lead) to complex and sophisticated test equipments like Digital Oscilloscope.
Can you identify these test equipments:
If not, then don’t worry. Go through our Test equipment module.