What is absolute pressure

Sens4 Knowledge content

HOME > SUPPORT > WHAT IS ABSOLUTE PRESSURE

WHAT IS ABSOLUTE PRESSURE?

An absolute pressure measurement or pressure value exerted by a gas, vapor or liquid is a pressure value measured relative to a perfect reference vacuum. A perfect vacuum pressure is defined as zero pressure and consequently a fixed reference for measuring the absolute pressure.

Absolute pressure can be measured using an electronic diaphragm sensor, where the measured pressure is applied on one side of the diaphragm, while the other side of the diaphragm is exposed to a permanently sealed vacuum.


Absolute pressure sensor

Absolute pressure applications

One application for absolute pressure sensors is measuring barometric pressure variations due to changes in high and low atmospheric pressure created by weather patterns.

Another example is determining altitude by measuring change of ambient pressure as function of elevation. However, compensation for changes in barometric sea-level pressure is required for accurate altitude measurement.


Pressure transmitter

Pressure measurement products from Sens4

■  Ceramic & Steel diaphragm

■  Programmable features

■  Precision performance


> For more information

Do you have questions or need help configuring the right products?

Sens4 on facebook
Sens4 on LinkedIn
Sens4 on Twitter
Sens4 on Youtube

Our passion | Your value™


Copyright © 2019 - Sens4 A/S

Sens4 A/S  Nordre Strandvej 119G  3150 Hellebaek  Denmark

Tel: +45 8844 7044  > Email to Sens4

HOME   |   ABOUT   |   NEWS   |   PRODUCTS   |   SHOP  |  INDUSTRIES   |   SUPPORT   |  CONTACT   |   CAREERS   |  COOKIES  |  TERMS & CONDITIONS  |   PRIVACY & LEGAL

CVR: 39389029