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Calibration method of pulse current

A technology of pulse current and calibration method, which is applied in the direction of pulse characteristic measurement, etc.

Inactive Publication Date: 2013-05-22
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Problems solved by technology

However, there is no calibration method specifically for pulsed current in the prior art

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  • Calibration method of pulse current

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Embodiment Construction

[0014] The content of the invention of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] The calibration device used in the calibration method of the pulse current provided in this embodiment includes an attenuator 2, an oscilloscope 3 and a matching resistor 4, such as figure 1 shown. One end of the pulse current source 1 is electrically connected to the attenuator 2 and the oscilloscope 3 in sequence, and the other end of the pulse current source 1 is electrically connected to the matching resistor 4 . Both the oscilloscope 3 and the matching resistor 4 are grounded. Pulse current source 1, attenuator 2, oscilloscope 3, matching resistor 4 and ground form a closed loop. Attenuator 2 is used to attenuate the voltage. The ratio of the output voltage of the attenuator 2 to its input voltage is defined as the attenuation ratio of the attenuator 2 . In this embodiment, the attenuation ratio of the att...

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Abstract

The invention discloses calibration method of pulse currents. The calibration method includes following steps: the pulse currents output by a pulse current source (1) pass through an attenuator (2), an oscilloscope (3), the ground and a matched resistor (4) to form a closed current circuit; by the attenuator (2), input voltage of the oscilloscope (3) is attenuated; and characteristic parameters of the pulse currents are obtained by the corresponding relation between a wave shape displayed by the oscilloscope (3) and the pulse currents. The corresponding relation between the wave shape displayed by the oscilloscope (3) and the pulse current can be adjusted by adjustment of the attenuation ratio of the attenuator (2). The calibration method can calibrate the pulse currents generated by the pulse current source, and the characteristic parameters of pulse height, pulse rise time, pulse fall time, pulse width and the like of the pulse current are obtained.

Description

technical field [0001] The invention relates to the technical field of pulse signal calibration, in particular to a pulse current calibration method. Background technique [0002] Pulse has the meaning of pulsation and impact, and pulse signal usually refers to a voltage or current signal with a short duration and special changing rules. Common pulse signal waveforms are rectangular, ladder-shaped, bell-shaped, damped sinusoidal, etc., among which the most basic pulse signal waveform is rectangular. The main parameters that characterize the pulse signal are: pulse amplitude, pulse rise time, pulse fall time and pulse width. [0003] In applications, it is often necessary to obtain characteristic parameters such as the pulse amplitude, pulse rise time, pulse fall time, and pulse width of the pulse current output by the pulse signal generator. However, there is no calibration method dedicated to pulse current in the prior art. Contents of the invention [0004] The purpos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/02
Inventor 杨金涛马蔚宇齐万泉吴红森康宁刘阳袁岩兴
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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