It is supposed that the relation between the analog current and the summation of the digital current value of picture element is equal.
根据显象管阴极电流模拟值等于整幅图象的电流数字值之和的原理，可推出各象素的发射电流密度。
Abstrct: the electrical parameters Tester through AT89C51 SCM as a core element of control by the analog switch HCF4051 constitute a range digital multimeter.
本电参数测试仪通过AT 89 C51单片机作为核心的控制元件，由模拟开关hcf 4051构成自动量程数字万用表。
Each memory element can store data represented in analog or digital form.
每个存储器元件可存储以模拟或数字形式表示的数据。
The second selected element selects one of the second groups of voltage references as an output analog voltage according to N-M least significant bits of the N-bit digital signal.
第 二选择单元依据N位数字信号的N-M个最低位，选择第二组参考电压之一作为输出模拟电压。
The second selected element selects one of the second groups of voltage references as an output analog voltage according to N-M least significant bits of the N-bit digital signal.
第 二选择单元依据N位数字信号的N-M个最低位，选择第二组参考电压之一作为输出模拟电压。
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