What is the difference between linear position sensor and LVDT sensor?

Linear Position Sensors – LVDT Sensor | Sensing Position of an Object. The idea behind these sensors is to allow us measure the distance of an object from a particular point. While they may appear almost identical on the surface, there are key differences between these two types of sensors to be aware of. This article should help to guide you through the differences and enable you to identify the ideal version for your usage. 

The Linear Position Sensors vs. LVDT Sensors

These two types of sensors are used to measure the position of an object in space. Introduction: Linear position sensors are used to measure the straight line distance of an object from one point to another. And that they are really good at measuring distances. LVDT SENSOR, however, one of kettle equipment called a transformer to detect the variation of magnetic fields at coil box. This enabled them to gauge the movement of something but not in a straight line. Instead, it measures movement along three axes. 

Choosing the Right Sensor

This is also something that you need to take into great consideration when it comes time for you to choose between a linear position sensor and an LVDT sensor. A linear position sensor is a good alternative in case you are willing to gauge the position of a moving object straight away. It provides good measuring for that style of movement. But, in case the object you want to measure moves in a formed by curves or zigzags way, it would be better for an LVDT sensor. It is meant to accommodate some more complicated movements. 

Accuracy and sensitivity Differences

On certain occasions both sensors can fulfil the same tasks, although well in this case they are different only that — how they work. They have higher precision than rotary position sensors as they measure the distance, i. e., many units are moved in a straight line. It reduces the chances of errors in measuring them. However, in contrast, LVDT sensors may be more precise. This makes them more accurate at working with something that is moving in multiple dimensions or has a weird/non-standard shape. According to what has been mentioned above, if the accuracy is crucial for your mission linear position sensor will be a better choice. 

Cost of the Sensors

My point is, the second major difference between these two sensors has to do with cost. In general linear position sensors are less expensive than LVDT based sensors. That is because they are less complex for production. On the other hand, LVDT sensors are more intricate in design, and that's why they require more time to manufacture (i. e., resources). So, if you are on a tight budget, then you might have to consider the prices of these sensor before making your purchase decision. 

Which Sensor to Select? 

If you are struggling to choose the best sensor for your needs, keep in mind these three factors. What exactly do you have to Measure? If it is something that moves straight, then you should go with a linear position sensor. But in case the object is moving in a different aspect or having so complex into its shape, you must be getting the LVDT sensor. Also, consider the accuracy in measurement that you need for your specific project and how much you can afford to spend on the sensor. 

Conclusion

Therefore, in conclusion, Linear Position Sensors and LVDT Sensors are both instruments that help determine the location of something. While alike in some facets, they also have a number of fundamental differences—the variations in each makes one better over the other regarding your particular task. Not sure which sensor to get, we can help you to determine the best solution. We can assist you in making sure that the type of sensor you are choosing is the right one for your project.