Sensores e transdutores

Universidade de Brasília - Faculdade do Gama - Área Especial 2 Lote 14 Setor Central Gama-DF Cep: 72405-610. Telefone Geral: (55 61) 3484 9719 | (Fax) 3484 9701

Sensores de Força, Torque e Pressão
Sensores e Transdutores

Daniel Canongia Furtado – 10/44184
Graduando em Engenharia Automotiva.
Universidade de Brasília Faculdade Gama, UnB, Brasil.
E-mail: [e-mail]

João Victor S. Oliveira – 10/45733
Graduando em Engenharia Automotiva.
Universidade de Brasília Faculdade Gama, UnB, Brasil.
E-mail: [e-mail]

Roberto Aliandro Varella – 10/47787
Graduando em Engenharia Automotiva.
Universidade de Brasília Faculdade Gama, UnB, Brasil.
E-mail: [e-mail]

Unidade Acadêmica/Departamento:
Faculdade do Gama, UnB/Engenharia Automotiva

Gama - DF
2011

1. Introdução:
2. Sensores de Força:

2.1. Princípio Básico de Funcionamento:
The working scheme of a force sensor consists of the direct measurement of a parameter in the equilibrium system closely correlated with the acting force. As with all sensors, the ideal condition requires that, in addition to the close correlation of the measureable parameter with the acting force, this parameter be almost independent of all influence quantities, mainly environmental conditions (temperature, atmospheric pressure, humidity, vibrations) and spurious components that may be involved in the measurement.
To give an example illustrating the concept of a parameter correlated with the acting force, we can consider the balance, in which the difference in moments with respect to the fulcrum is determined by the angle of rotation of the balance beam, so that the angle of rotation can be taken as the measuring parameter of the forces causing the moments.
Every balance of this type has a graduation of the rotation angle, calibrated in mass divisions (therefore, for the working principle of the instrument, in moment variations). This is possible because a restoring moment is always