摘要
测量了声速测量仪的空程及空程差的大小。实验结果表明,空程的出现会产生很大的误差,使学生认识到实验操作过程中避免空程的必要性。
This paper measured the backlash through the sound velocity measuring apparatus. The Backlash is close to the Instrument Error. So that the students can understand that the sound velocity measuring apparatus must not be reversed in measuring.
出处
《齐齐哈尔大学学报（自然科学版）》
2012年第6期80-82,共3页
Journal of Qiqihar University(Natural Science Edition)
关键词
声速测量
空程差
不确定度
仪器误差
sound velocity measurement
backlash
uncertainty
instrument error
