脊柱推拿时咔哒声响的测量技术分析与设计

目的 为研究脊住推拿时所发出咔哒声响，提供一套可采集、定位和分析的检测仪器。方法 在回顾咔哒声响测量技术现状的基础上，分析研究了实现声响测量的技术路线，设计了由时钟脉冲发生器、发送／接收接口、校准波发生器、复合传感器、计算机、测定分析软件以及输出部件等组成的声响测量系统。结果 经初步试验，在40cm的距离上测到了关节发出的咔哒声响，说明技术上基本可行。结论 本仪器可以作为脊柱推拿所致咔哒声响的采集、定位和分析系统使用。

Measurement technique for the cracking sounds during spinal manipulation]

OBJECTIVE: To design a set of equipment to collect, locate and analyze the cracking sounds during spinal manipulation. METHODS: On the basis of reviewing the current techniques for cracking sound measurement, we designed a cracking measurement system consisting of a pulse generator, transmission/reception interface, calibrating wave generator, compound sensors, computer, analytical software, and output components. RESULTS: Preliminary experiments demonstrated that the cracking sounds could be detected at a distance of 40 cm, suggesting that this system was technically feasible with some improvements to be made. CONCLUSION: This device can be used for collecting, locating and analyzing the cracking sounds during spinal manipulation.