DIY Selfcal AC Voltage Standard

iddqd2001 · 发表于 2016-3-19 14:54:58

本帖最后由 iddqd2001 于 2016-3-19 14:56 编辑

1 uV - 10 V RMS voltage output.
100 Hz - 1 MHz frequency range.

suny-hyb · 发表于 2016-3-19 15:23:36

Welcome foreign electronics enthusiasts

彭星 · 发表于 2016-3-19 15:49:26

感谢分享！

官修2 · 发表于 2016-3-19 16:05:14

看不懂英语，不错谢谢分享

qw66 · 发表于 2016-3-19 16:08:34

thank you

scoopydoo · 发表于 2016-3-19 16:49:48

Good job, man!

张文松 · 发表于 2016-3-19 16:56:53

俄罗斯的朋友又来放毒了

。。。我竟然看到了胜利的9808了

fghlw · 发表于 2016-3-19 17:32:00

wonderful

lilith · 发表于 2016-3-19 17:54:48

1、how to adjust the output sine amplitude?
2、how to transmit(convert) the sine voltage to dc voltage?

hgjdwx · 发表于 2016-3-19 18:04:06

我也说句英语：qiang ren

lxox · 发表于 2016-3-19 18:44:41

英语应该不管用，这位是俄罗斯的朋友！

longshort · 发表于 2016-3-19 19:03:00

100Hz对应最低位，1MHz对应最大输出？输出滤波器一定是个机密性很强的部分。

leglg · 发表于 2016-3-19 19:51:19

 работает  хорошо,  спасибо  ! 

树叶的门 · 发表于 2016-3-19 20:06:08

NTC compared with PN juntion, which one will be more precise for oven? I'm working on a simple oven using 10K NTC, SCH was referenced from a TCXO.

suny-hyb · 发表于 2016-3-19 20:09:53

Can you tell us:
How to achieve closed-loop control, how to achieve a stable AC to DC conversion

suny-hyb · 发表于 2016-3-19 20:36:36

FLUKE5200

---FLUKE5200

lilith · 发表于 2016-3-19 21:12:45

本帖最后由 lilith 于 2016-3-19 21:15 编辑

My fixed frequency closeloop sineware source, output AC voltage calibrate to the DC Voltage reference(V1)

hu_lin · 发表于 2016-3-19 22:01:29

前面的还没研究完，你又出新成果了

iddqd2001 · 发表于 2016-3-19 22:21:47

lilith 发表于 2016-3-19 17:54
1、how to adjust the output sine amplitude?
2、how to transmit(convert) the sine voltage to dc volt ...

1. This is the "lite" version without the amplitude adjustment.
2. This is the well-known calculable type of voltage reference.
Digitally Generated AC Reference Source

The Solutions: Calculable AC Voltage Reference

Guildline Model 7410 AC Voltage Reference

lilith · 发表于 2016-3-20 18:05:18

iddqd2001 发表于 2016-3-19 22:21
1. This is the "lite" version without the amplitude adjustment.
2. This is the well-known calcula ...

I konw you mean,but its not a AC self-calibration source,because
1、the calibration point is not at amplifier(1V/10V) output, the error introduced by amp(temperature,frequency,and so on ) could not be corrected.
2、the AC Voltage isnot building a close-loop by your DC Standard, its open loop. I think the self-calibration is a close loop design?

iddqd2001 · 发表于 2016-3-20 21:19:19

It's a simple prototype board, made over the weekend. The full one is mach more complex.

iddqd2001 · 发表于 2016-3-20 21:19:35

It's a simple prototype board, made over the weekend. The full one is mach more complex.

hepingmail · 发表于 2016-3-22 20:36:38

一直不知道AC基准的原理，现在终于有机会来好像研究了！

feiguohai517 · 发表于 2017-8-1 16:54:45

好东西，学习了！

feiguohai517 · 发表于 2017-8-1 18:56:04

学习了！

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