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Force Sensor Construction Principle

Sinocera Piezotronics, INC | Updated: Sep 04, 2017

Force Sensor Construction principle

Force sensor application and construction principle

In our real life, because the object is also the role of each other, then its force will be everywhere, many people will often return to the actual application to measure the size, and similar to the force, thrust, and Pressure and so on. As a result of the force in one direction and the size of the vector, we in the actual measurement of the time, we need to be able to transform the object into a measurement signal for the output device, which is the basis of mechanical sensors, The size of the direction of the different forces, then the application of environmental requirements are different, and now we have a lot of mechanical sensors, such as: load cells, force sensors, torque sensors, and so on series of sensors. Now the enterprise is very versatile for similar sensor applications.

For each of the different applications, there are different types of sensors in each branch of the mechanical sensor. Now used in industrial machinery to measure the force sensor, there are many targeted sensors. Force sensor based on the principle of the load cell, the use of two force transmission part of the force, the internal structure of which the force sensitive device is fixed, the piezoelectric pads on the side of the piezoelectric film in the central area, the substrate part of the pressure The other side of the chip and the edge of the force between the part, and close to the piezoelectric film. According to the strength and size of different forces, the design of the appearance of different force sensors, such as S-type force sensor, plate ring force sensor and so on. S-type force sensors are the most common sensor in mechanical sensors, most of which are used to measure the force and pressure between solids, and are often referred to as pressure sensors. Because it looks like S shape, it is also known as the S-type force sensor, which has the advantage of easy installation, easy to use, suitable for hanging scales, batching scales, mechanical scales and other electronic force measurement system. Plate ring force sensor is also named for the sake of shape, and its advantages are more suitable for a large range of work under harsh conditions, frequency response characteristics, and many are used in building materials, cement, chemicals, lifting, lifting industry. For the classification of force sensors is still more, there are many similar internal helix, as well as external spiral column force sensor, hook scale sensor, etc., we are using the same principle: in particular, the role of deformation, so that the force of this physical The signal is converted to an electrical signal. Because of the large number of measurements in the force, and in order to more easily and directly to measure the size of the pressure, the pressure sensor in the structure, have different changes, but the shortcomings of these changes are: different force sensor accuracy is different. In the selection of force sensors, precision and range is the most important indicator, need to be considered.