最近有很多热心网友都十分关心什么是测量物体质量的精密仪器这个问题。还有一部分人想了解实验室中用什么测量物体的质量。对此，快播百科小编「来不及放下你」收集了相关的教程，希望能给你带来帮助。

什么是测量物体质量的精密仪器

天平是测量物体质量的精密仪器。天平是一种衡器，由支点（轴）在梁的中心支着天平梁而形成两个臂，每个臂上挂着一个盘，其中一个盘里放着已知质量的物体，另一个盘里放待测物体，固定在梁上的指针在不摆动且指向正中刻度时的偏转，就指示出待测物体的质量。

天平的组成：

普通标牌天平主要由立柱、横梁、吊挂系统、底座和制动装置组成。立柱垂直固定在底座上，用以支撑横梁。立柱下部装有分度牌，顶部装有托架，在天平不工作时支托横梁。在横梁中部装有一把中刀。天平工作时，中刀搁置在与升降杆顶端连接的刀承上，作为支点。中刀两边装有两把边刀，分别作为重点和力点，起承受和传递载荷的作用。中刀下横梁底面装有指针，指针上固定有可上下移动以调节横梁重心位置的重心砣，它起调整天平灵敏度的作用。

【英文介绍/For English】：

A balance is a precision instrument for measuring the mass of an object. A balance is a weighing instrument with a fulcrum (shaft) supporting a balance beam in the center of the beam to form two arms, each arm is hung with a disc, one of which is placed with an object of known mass, and the other is placed For the object to be measured, the deflection of the pointer fixed on the beam when it does not swing and points to the middle scale indicates the mass of the object to be measured.

The composition of the balance:

Ordinary sign balance is mainly composed of upright column, beam, hanging system, base and braking device. The column is fixed vertically on the base to support the beam. The lower part of the column is equipped with an indexing card, and the top is equipped with a bracket to support the beam when the balance is not working. There is a middle knife in the middle of the beam. When the balance is working, the middle knife rests on the knife bearing connected with the top of the lifting rod as a fulcrum. There are two side knives on both sides of the middle knife, which are used as the key point and the force point respectively, and play the role of bearing and transmitting the load. The bottom surface of the beam under the middle knife is equipped with a pointer, and the pointer is fixed with a center of gravity mass that can move up and down to adjust the center of gravity of the beam, which plays the role of adjusting the sensitivity of the balance.

实验室中用什么测量物体的质量

精密零件的生产需要高精度的测量仪器进行检测。以下是常用的几种测量仪器：

1.光学投影仪：光学投影仪可以对零件进行三维测量和检测，可以检测出零件的尺寸、形状和位置等信息。

2.三坐标测量机：三坐标测量机可以检测零件的三维尺寸和位置，在精密零件的生产中应用广泛。

3.高精度数字显示千分尺：数字显示千分尺是一种直接读数的测量仪器，可以精确地测量零件的长度和宽度等尺寸参数。

4.形状测量仪：形状测量仪可以检测零件的形状参数，包括外形、直径、圆度等。

5.石英仪：石英仪可以用来检测硬度、膨胀系数、线膨胀系数等物理参数。

6.扫描仪：扫描仪可以对零件进行三维模型重建，提高检测效率和精度，是一种比较新的测量技术。

以上是常用的几种测量仪器，在精密零件的生产中，需要根据具体的要求和需求选择合适的测量仪器，以保证零件的高精度和高质量。