BCA +V R2 R1 C2 C1 LN R2 C2 C1 LN

2500. 2600. 2700. 2800. 503. 517. 531. 545. 559. 573. 587. 14.208 mH. 13.934 mH. 14.058 mH. 13.498 mH. 13.187 mH. 14.339 mH amplitude. (a.u.) period (µs).
1MB taille 2 téléchargements 404 vues
+V

g replacements

PSfrag replacements

L N R1

A

C

C1 B C2

R1

C L

A C1

R2

C2

R2

B

1

N

ments

-60

L=12.147 mH L=13.792 mH L=14.073 mH L=14.339 mH L=15.067 mH

amplitude (dBm)

-70 -80 -90

-100 -110 -120 -130

0

50

100

150

200

250

300

frequency (a.u.)

2

350

400

R2 PSfrag replacements

L

C2

C1 N

3

=

N

0.1µ F

UA741

=

+

50kΩ



+15V



UA741

L

DS1669−50

+

30kΩ

470Ω

46kΩ

46.2kΩ 1N4003x2

46.2kΩ

3.3 Ω

315Ω

10kΩ

10kΩ

4

10kΩ

−15V

850Ω

P

DS1669−10

−15V +15V

470Ω

1240Ω

3240Ω

3240Ω

315Ω

=

P

follower

non−inverting comparator with hysteresis (datasheet p.6)

analog switch

amplitude detector

non−inverting amplifier

offset and amplification frequency

24 bits counter 14.31818 MHz quartz (ref)

1/4 7408 // port + 1M ref. level 1/2 OP213 signal

+

10k

− +5V

// port 3.3k

10k

AA119 1/4 4066

LM393

1uF

−12

+ −

5

− +

100k pot // port

1/4 4066



+12 +

1/2 OP213

& S

EPLD based freq. counter

− 1/2 TL074

ADC

6

nts

4000 3500

amplitude (a.u.)

3000 2500 2000 1500 1000 500 0 12.5

13

13.5

14

parameter L (mH)

7

14.5

15

nts

riod (µs)

Allan deviation slope

0 -0.2 -0.4 -0.6 -0.8

12.5 Allan deviation slope

PSfrag replacements

-1

13

13.5

14

14.5

15

14.5

15

parameter L (mH)

573 559 545

period (µs)

531 517 503 489 475 461 447 12.5

13

13.5

14

parameter L (mH)

8

nts

587

14.208 mH 13.934 mH 14.058 mH 13.498 mH 13.187 mH 14.339 mH

period fn+1 (µs)

573 559 545 531 517 503 503

517

531

545

559

period fn (µs)

9

573

587

nts

2800

14.208 mH 13.934 mH 14.058 mH 13.498 mH 13.187 mH 14.339 mH

2700

amplitude (a.u.)

2600 2500 2400 2300 2200 2100 503

517

531

545

559

period (µs)

10

573

587

nts

2800

14.010 mH 14.415 mH

amplitude an+1 (a.u.)

2700 2600 2500 2400 2300 2200

2100 2100 2200 2300 2400 2500 2600 2700 2800

amplitude an (arbitrary units)

11

amplitude(n+2)

2700 2600 2500 2400 2300

ampl

amplitude(n+2)

2784

2200

amp

litu

de(n

2700

2400

2300

2200

2100

(n) plitude

2500

2600 2500 2400 2300 2200 2100 2700 2600 2500 2400 2300 2200 2100 2100

YZ

am

+1)

2400

2300

2200

X

2784 2700 2600 2500 2400 2300 2200 2100

Z

2700

2600

amplitud X

2500

2400

2300

2700 2600 2500 2400 2300 2200 2100

)

e(n

2200

e(n+1)

Y

12

2100

2500

2600

2700

amplitude(n)

Y

amplitude(n+2)

X

2600

2700

(n+1) itude

2100 2100 2200 2300 2400 2500 2600 2700 Z

2784

am

p

d litu