近年来，数字式的无纸记录仪似有代替模拟记录仪的趋势。

In recent years, the analog recorder trends to be replaced by the paperless recorder which belongs to the digital instrument.

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然后根据水下冲击波的特征，分析了水下爆炸冲击波数据记录仪的测试原理，介绍了两种模拟实际水下爆炸冲击波信号的测试方法。

Then, on the basis of the characterization of shock wave and measuring principles of the data recorder, two measuring methods for simulating actual shock wave are introduced in the pa - per.

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介绍一种集模拟显示仪表和数字显示记录仪表优点的新型带指针指示的数字式显示记录仪。

A new digital display recorder with indicator which integrates the advantage of analog display instrument and digital display instrument is introduced.

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