自动门
自动门:测量方法及其分类
发布时间:2015/4/12
自动门讯:
测量方法及其分类
测量方法的正确与否是十分重要的,它直接关系到测量工作是否能正常进行,能否符合规定的技术要求。因此,必须根据不同的测量任务要求,进行认真的分析,找出切实可行的测量方法,然后根据测量方法选择合适的测量工具,组成测量装置,进行实际测量,如果测量方法不合理,即使有高级精密的测量仪器或设备,也不能得到理想的测量效果。
测量方法分类形式有多种多样,根据在测量过程中,被测量是否随时间变化而分为静态测量和动态测量;根据测量数据是否通过对基本量的测量而求得,可分为绝对测量和相对测量;根据测量每件可分为等精度测量和非等精度测量;按测量手段分类可分为:直接测量、间接测量和组合测量;按测量方式分类可分为:偏差式测量法、零位式测量法和微差式测量法等。除了上述分类外,近来还出现另外一些分类方法,例如按测量敏感元件是否与被测价质接触,可分为接触式测量与非接触式测量;按测量系统是否向被测对象施加能量,可为为主动式测量和被动式测量等。
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