portable data recorder

The functions of portable data recorder for adjusting test of safety valves are introduced, the testing data are collected, treated and typed in time, and then the sampling differentiation conditions of safety valve set and reseat pressures are discussed, the optimum programm is determined.

介绍便携式安全阀调整试验用数据记录仪的功能，对试验数据进行实时采集、处理和打印试验记录等，并对安全阀起跳压力和回座压力采样的判别条件进行了讨论，确定了最佳方案。

The research and development of the portable flight data trans-recorder system based on embedded computer PC 104 is described in this paper.

本文主要介绍了基于嵌入式计算机PC104的便携式飞机飞行参数转录系统的研制工作。

The Exploitation and Application of Matrix LCD in Portable Data Recorder

点阵式液晶显示器在便携式查表器中的开发与应用

Portable Data Recorder for Vibration Waveform

便携式振动波形数据记录器

Development of Portable Data Recorder for Adjusting Test of Safety Valves

便携式安全阀调整试验数据记录仪的研制