Multi axis force sensors and pressure sensors are two different types of sensors that have different applications in measuring physical quantities. The following is a detailed comparison of these two sensors from the working principle, measurement parameters and application scenarios.

First, the principle of work

3-axis load cell is a kind of sensor that can measure the force in three directions, which usually consists of three independent single-axis force sensors. Each single-axis force sensor can measure the force in one direction, and then synthesize the force in these three directions to get a complete three-dimensional force vector. Such sensors typically use a bridge circuit to measure the change in force and convert this change into a usable electrical output via an internal signal processing circuit.

In contrast, a tension/compression sensor can only measure force in one direction, i.e., pressure or tension. It usually consists of an elastic element and a resistor. When the elastic element is deformed by an external force, the resistance value of the resistor also changes, thus producing an electrical signal output. This type of sensor usually uses a Wheatstone bridge circuit to measure the change in resistance, and through the internal signal processing circuit to convert this change into a usable electrical signal output.

Second. Measurement Parameters

A triaxial force sensor can simultaneously measure forces in three directions, including the X, Y and Z axes. Therefore, it can be used to measure three-dimensional forces such as weight, pressure, and tension of an object. At the same time, Multi axis  force sensors can also be used to study the kinetic behavior of objects, such as in the fields of robotics and vehicles, where precise measurement and control of the object's motion state is required.

In contrast, pressure sensors usually have a smaller measuring range and can only measure forces in one direction. It is mainly used to measure fluid or gas pressure, such as in barometers, hydrometers and other fields of application.

Third, the application scene

3-axis Force Sensors have a wide range of applications in robotics, vehicles, aerospace and other fields. For example, in the field of robotics, it is necessary to accurately measure and control the motion state of the robot, three-dimensional force sensors can be used in the joint parts of the robot to achieve accurate motion control and sensing. In the field of aerospace, Triaxial force sensors can be used in the takeoff and landing process of an aircraft to achieve precise control and navigation of the aircraft.

In contrast, pressure sensors have a wide range of applications in fields such as meteorology, environmental protection, and industrial control. For example, in the field of meteorology, pressure sensors can be used to measure atmospheric pressure and wind speed and other parameters; in the field of environmental protection, pressure sensors can be used for water pollution monitoring, etc.; in the field of industrial control, pressure sensors can be used to control the pressure of fluids or gases.

In short, Triaxial force sensors and pressure sensors are two different sensors, they have different characteristics in the scope of application and working principle. When choosing to use, you need to choose the right type of sensor according to the actual needs and occasions.