In the vast landscape of industrial measurement, load cells play a pivotal role in ensuring the accuracy and reliability of weight and force measurements. These sophisticated devices, integral to myriad applications across industries, convert mechanical force into measurable electrical outputs.… Read more
An induction potentiometer is a rotary type linear-variable inductor with two concentrated windings wound on the stator and on the rotor as illustrated in the figure below:
The rotor windings are excited with an AC, inducing voltage … Read more
The piezoelectric transduction is based on the conversion of mechanical vibrations into electrical signals and vice versa. The piezoelectric effect involves the generation of electric charge by a material when subjected to a mechanical deformation. The redistribution of electrical charges … Read more
This is a variable-reluctance transducer used to detect small motions, giving output signals as low as 0.01° of changes in angles.
The figure below shows an example of Microsyn:
In the Microsyn transducer above, the coils are connected in such … Read more
The null technique is one of the operational modes for a measuring instrument. A null instrument employs the null method for measurement. In this technique, the instrument exerts an influence on the measured system so as to oppose … Read more
Analog sensors provide a signal that is continuous in both its magnitude and its temporal (time) or spatial (space) content.
Most physical variables such as, current, pressure, temperature, displacement, acceleration, speed, light intensity and strain tend to be … Read more
Several mechanical input sensors, as well as some sensors which measure humidity or temperature, operate by the transduced quantity causing a change in capacitance, which in turn, is converted to an analog output voltage by an ac bridge circuit or … Read more
If a bluff (non-streamlined) body is placed in a flow, vortices detach themselves at regular intervals from the downstream side as illustrated in the diagram below:
In flow measurement the vortex shedding frequency is usually a … Read more
A heated object emits electromagnetic radiation. At temperatures below approximately 400 °C this radiation can be felt as heat. As the temperature rises, the object starts to emit visible radiation passing from red through yellow to white. Intuitively we can … Read more
The technology of ultrasonic testing has been used by production and industry since the development of the radio engineering process. The effect and device of the technology are that ultrasonic waves of acoustic type do not change the rectilinear trajectory … Read more
