
What is Weber-Fechner law?
|
Nyquist Team
This is a law formulated by Ernst Heinrich Weber. It is used to express the relationship between the physical measure of a stimulus and the sensory response (e.g., vision or hearing). It is also known as the strength of sensation. This law arises from many practical observations and has numerous technical applications.
It originally stated: “If stimuli sizes are compared, it is not the arithmetic difference between them that affects our perception, but the ratio of the compared sizes.”, and 30 years after it was expressed, it was mathematically described by its creator with the formula:

where:
dw – differential change in strength (intensity) of sensation,
k – differential change in the size of the stimulus
dB – experimentally determined proportionality coefficient.
This notation of the law means that the change in the reaction of a biological system is proportional to the relative change of the stimulus.
See also
Follow us on Instagram
Office / Showroom
Production / Warehouse
Let's do something together
Use the form - we will respond as soon as possible!



