when can we say that a given micrometer screw has some errors
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Explanation:
ʜᴏᴡ ᴡᴏᴜʟᴅ ʏᴏᴜ ᴅᴇᴛᴇʀᴍɪɴᴇ ᴛʜᴇ ᴘᴏsɪᴛɪᴠᴇ ᴀɴᴅ ɴᴇɢᴀᴛɪᴠᴇ ᴇʀʀᴏʀs ᴏғ ᴀ ᴍɪᴄʀᴏᴍᴇᴛᴇʀ sᴄʀᴇᴡ?
ᴢᴇʀᴏ ᴇʀʀᴏʀ ɪs ᴀʟᴡᴀʏs ᴀʟɢᴇʙʀᴀɪᴄᴀʟʟʏ sᴜʙᴛʀᴀᴄᴛᴇᴅ ғʀᴏᴍ ᴛʜᴇ ᴍᴇᴀsᴜʀᴇᴅ ʟᴇɴɢᴛʜ. ɪғ ᴛʜᴇ ᴢᴇʀᴏ ᴏғ ᴛʜᴇ ᴠᴇʀɴɪᴇʀ sᴄᴀʟᴇ ʟɪᴇs ᴛᴏ ᴛʜᴇ ʀɪɢʜᴛ ᴏғ ᴛʜᴇ ᴍᴀɪɴ sᴄᴀʟᴇ ᴛʜᴇ ᴢᴇʀᴏ ᴇʀʀᴏʀ ɪs ᴘᴏsɪᴛɪᴠᴇ ᴀɴᴅ ɪғ ɪᴛ ʟɪᴇs ᴛᴏ ᴛʜᴇ ʟᴇғᴛ ᴏғ ᴛʜᴇ ᴍᴀɪɴ sᴄᴀʟᴇ ᴛʜᴇɴ ɪᴛ ɪs ɴᴇɢᴀᴛɪᴠᴇ.
ʜᴏᴡ ᴅᴏ ʏᴏᴜ ᴄʜᴇᴄᴋ ғᴏʀ ᴍɪᴄʀᴏᴍᴇᴛᴇʀ ᴇʀʀᴏʀs?
ʜᴏᴡ ᴅᴏ ʏᴏᴜ ᴄʜᴇᴄᴋ ғᴏʀ ᴍɪᴄʀᴏᴍᴇᴛᴇʀ ᴇʀʀᴏʀs?ɪɴsᴛʀᴜᴄᴛɪᴏɴs ᴏɴ ᴜsᴇ
ᴛʜᴇ ᴍɪᴄʀᴏᴍᴇᴛᴇʀ ɪs ᴀɴ ᴇxᴛʀᴇᴍᴇʟʏ ᴘʀᴇᴄɪsᴇ ᴍᴇᴀsᴜʀɪɴɢ ɪɴsᴛʀᴜᴍᴇɴᴛ; ᴛʜᴇ ʀᴇᴀᴅɪɴɢ ᴇʀʀᴏʀ ɪs 1/200ᴍᴍ = 0.005ᴍᴍ.
ᴜsᴇ ᴛʜᴇ ʀᴀᴄʜᴇᴛ ᴋɴᴏʙ (ᴀᴛ ᴛʜᴇ ғᴀʀ ʀɪɢʜᴛ ɪɴ ᴛʜᴇ ᴘɪᴄᴛᴜʀᴇ ᴀʙᴏᴠᴇ) ᴛᴏ ᴄʟᴏsᴇ ᴛʜᴇ ᴊᴀᴡs ʟɪɢʜᴛʟʏ ᴏɴ ᴛʜᴇ ᴏʙᴊᴇᴄᴛ ᴛᴏ ʙᴇ ᴍᴇᴀsᴜʀᴇᴅ.
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when can we say that a given micrometer screw has some errors?
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