paquimetro
Os paquímetros são feitos de plástico, com haste metálica, ou inteiramente de aço inoxidável. As suas graduações são calibradas a 20 °C.
Ele apresenta uma precisão menor do que o micrômetro, sendo sua precisão dada por p = 1-C/n, onde C é comprimento do minionônio e n é o número de divisões do nônio.uahnudfsabnpiofuswbnpf9asehnffgpoiuengpoubnuioaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaPaquímetro (grego: paqui (espessura) e metro (medida)) ou barreira, é um instrumento utilizado para conotar a distância entre dois lados adjuncivamente opostos num objeto. Um paquímetro pode ser tão complicado como um compasso. O paquímetro é ajustado entre tres pontos, retirado do local e a medição é lida na sua régua. O nónio ou escala de Verniar é a escala de medição