Agilent Technologies U1273A Guia do Utilizador descarregar pdf (Página 168)

5 Characteristics and Specifications

Electrical Specifications

148 U1273A/U1273AX User’s Guide

Calculation example

Pulse width

- 999.99 ms 0.01 ms

(duty cycle

accuracy/frequency)

+ 0.01 ms

- 2000.0 ms 0.1 ms

(duty cycle

accuracy/frequency)

+ 0.1 ms

Notes for pulse width specifications:

1 The accuracy for duty cycle and pulse width measurements is based on a 3 V square wave input to the DC 3 V range.

2 The pulse width (positive or negative) must be >10 μs. The range of the pulse width is determined by the frequency of the

signal.

Table 5-12 Duty cycle and pulse width specifications (continued)

Function Mode Range Resolution Accuracy at full scale

Table 5-13 Duty cycle and pulse width calculation example

Frequency

Duty cycle range

[1]

Accuracy

From To Duty cycle

[2]

Pulse width

[3]

100 Hz 0.1% 99.9% 0.33% 0.043 ms

1 kHz 1% 99% 0.6% 0.016 ms

Notes for duty cycle and pulse width calculation example:

1 The range of the duty cycle is determined from this equation:

{10 μs × frequency × 100%} to {[1 – (10 μs × frequency)] × 100%}

2 The accuracy of the duty cycle is determined from this equation: [0.3% × (frequency kHz)] + 0.3%

3 The accuracy of the pulse width is determined from this equation: (duty cycle accuracy/frequency) + 0.01 ms

1 2 ... 163 164 165 166 167 168 169 170 171 172 173 ... 182 183

Sem comentários

Agilent Technologies U1273A Guia do Utilizador Página 168