Electrical & Electronics Measurements

Electrical vs. Electronic Instruments

Despite the fact that both electrical and electronic instruments measure electrical quantities like voltage and current, they differ from each other in terms of the built-in features; for example, purely electrical instruments don’t possess any in-built amplifying device to increase the amplitude of the quantity being measured whereas electronic instruments typically incorporate an amplifier. DC voltmeter that is based on moving-coil meter movement is a good example of an electrical instrument.

Electrical vs. Electronic Instruments

Electronic instruments often include in their structure some active electron device such as a semiconductor diode or an integrated circuit (IC), etc. This is not true for electrical instruments.

Also read: Digital vs. Analog Instruments

Even though the key distinguishing factor between the two types of instruments is the presence of an electron device in the electronic instruments, both are characterized by movement of electrons, the main difference being that the control of electron movement is more effective in electronic instruments than in electrical instruments.

While electronic instruments are typically more expensive than their electrical counterparts, they offer the following advantages for measurement purposes:

  • Given that electronic instruments can amplify the input signal, they possess very high sensitivity, that is, they are capable of measuring extremely small (low-amplitude) signals.
  • Because of the high sensitivity of electronic instruments, their input impedance is increased which means less loading effect when performing measurements.
  • Electronic instruments can monitor remote signals.
  • Electronic instruments have greater speed, that is, faster response and flexibility.

Also read: Null vs. Deflection Type Instruments

John Mulindi

John Mulindi is an Industrial Instrumentation and Control Professional with a wide range of experience in electrical and electronics, process measurement, control systems and automation. In free time he spends time reading, taking adventure walks and watching football.

Recent Posts

Standard Process Signals for Industrial Instrumentation

Industrial measurement and control processes employ standard process signals that are used throughout all the…

1 week ago

Top 5 Benefits of Combining CCTV Cameras with Biometric Systems

The integration of advanced technologies in security systems has become imperative for ensuring safety and…

1 week ago

Sources of Power Quality Problems

Power quality may be affected by a number of issues. Our discussion in this article…

2 weeks ago

Common Terms Used When Describing Power Quality Problems

Power quality has become an important issue to electricity consumers at all levels of consumption.…

2 weeks ago

What to Expect from PCB Assembly Services in China

The importance of printed circuit board (PCB) technology has escalated throughout the years with the…

2 weeks ago

Magneto-Optic Current Sensors for High Voltage, High Power Transmission Lines

One of the key challenges in measuring the electrical current in high voltage, high power…

3 weeks ago