Sensor’s Operating Temperature Range and Compensated Temperature Range Operating Temperature Range This is the temperature range over which the sensor will operate without damage. It is specified between a minimum and maximum temperature, for example -20 to +50°C.
Like any physical measurement system, pressure sensors are subject to errors caused by temperature variations, and these must be considered in sensor selection.
The purposes of load cells, also known load transducers, are to help the user measure the physical quantity or mass, and to convert force or energy into another form (ex. force, light, torque, motion, etc.).
To make the load cell work, manufacturers apply it onto a surface, where the strain gauge or other sensor changes its shape or physical status. The strain gauge then measures that shift, stress, tension, or compression on its surface.
The more gauges inside the load cell, the more sensitive the cell is in recording and monitoring variance in measurement. When calculating the potential capacity of a load cell, manufacturers consider: the maximum force value, the dynamics of the system (i.e. frequency response), the effect that placing the transducer in the force path will have and the maximum extraneous loads that the load cell will handle.
Materials of load cellLoad cells are made of various metallic parts, such as: alloy steel, stainless steel, aluminum, and tool steel. Each material offers something different in the way of properties; each is suited in one way or another to be used for load cells. Some of their various properties in
Production Process of load cellLoad cell instruments aim to highlight the actual mass of a material. They are produced based on the principles of mass measurement under fluid pressure, elasticity, magnetic effect, piezoelectric and zero environments. The two basic components of a load cell are the s
Advantages of Load CellsOne of the many advantages of load cells is their high level of accuracy. With reading accuracies within 0.25%, load cells, sensors and gauges provide accurate mass, weight and pressure measurement of loads both very small and very large, up to several thousand tons. Another
The main application of strain gauges is the manufacture of force and pressure transducers, particularly load cells. A load cell is a type of transducer that measures the mechanical load on an object by converting it to readable electronic signals. They are used in various industries such as automation, process control, biomechanics, equipment monitoring, building integrity analysis, bulk material weighing, testing, and quality control.
Modern load cells work using a combination of the Wheatstone bridge equation and the strain gauge. The Wheatstone bridge equation was developed in 1833 by Samuel Hunter Christie, and improved upon and popularized in 1843 by Sir Charles Wheatstone. Wheatstone bridge circuits illustrate the concept of a difference measurement. Today, load cells are usually made up of four strain gauges in a Wheatstone configuration.
