Since the 1950s, digitization has played an instrumental role in shaping the world we live in. It has rendered analog technology obsolete. Forbes put it correctly: ones and zeros are eating the world. However, there are still some analog devices that are not obsolete, not yet, at least.
Among these analog devices are analog pressure gauges, which serve the same function as their digital counterparts. Though they are phasing out of the market, the debate over both types doesn’t seem to be fading. Let’s compare the pros and cons of analog and digital pressure gauges:
Analog Pressure Gauges
Analog pressure gauges are mechanical devices that contain a needle that shows the change in pressure by the measuring element. The device has been around for more than a century and dating back to the first industrial revolution when the world was transitioning to new manufacturing processes.
Here are the pros and cons of analog pressure gauges:
- Affordability: Analog pressure gauges are inexpensive devices that are more affordable for companies
- No power required: Analog pressure gauges use mechanical parts, which means they don’t require an external power source.
- Damaged easily: Analog pressure gauges are easily damaged, especially when exposed to harsh conditions.
- Mechanical vibrations: Analog pressure gauges are prone to mechanical vibrations, which can result in inaccurate readings.
- Calibration: Analog pressure gauges are prone to corrosion, steam, and overpressure, hence require frequent recalibrations.
- Sturdiness: The moving parts of Analog pressure gauges, when exposed to constant pressure pulsation, can wear out quickly.
Digital Pressure Gauges
Digital pressure gauges are devices that convert applied pressure into electronic signals to show the acting pressure readings on a digital display. The pressure transducers used in digital pressure gauges are powered by battery, solar power, or other power sources.
Here are the pros and cons of digital pressure gauges:
- Durability: Digital pressure gauges are sturdy and durable devices that can withstand extreme temperatures and harsh conditions
- Durable built: Digital pressure gauges are built from aluminum or stainless steel and offer solid protection against drops, shocks, and hazardous chemicals
- Resistance: Digital pressure gauges are not susceptible to vibrations and overpressure spikes, hence provide accurate readings under rough conditions.
- Calibration: Digital pressure gauges don’t require frequent recalibration. The calibration is performed via software, which results in more accurate readings.
- Readability: Digital pressure gauges show results in a digital display that is easier to read. The precise numbers allow for extremely accurate readings.
- Power source required: Digital pressure gauges are made from electronic components; hence, they require an external power source.
- Cost: Digital pressure gauges contain sophisticated equipment and microprocessors, which makes them a more expensive option compared to analog pressure gauges.
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