Metrology

• Metrology

  Everything metrology & Calibration related. This is where the Voltnuts hang out.

• Topics

• Contact surface metal coating article with data PDF

  Started by Overspeed on 09 Feb, 2025 07:55
  Last post by Overspeed on 09 Feb, 2025 20:37

  Views: 2134, Replies: 6

• Data Logger for Legacy HP Instruments

  Started by Bud on 17 Feb, 2017 08:55
  Last post by Vertamps on 09 Feb, 2025 06:01

  Views: 10027, Replies: 14

• DIY Nano ampere current meter

  Started by fracton on 30 Nov, 2024 11:15
  Last post by BD1QMP on 09 Feb, 2025 02:06

  Views: 7868, Replies: 24

• Expected behavior for LBE-1420 GPSDO?

  Started by BrianL on 04 Feb, 2025 03:27
  Last post by BrianL on 07 Feb, 2025 20:41

  Views: 2490, Replies: 7

• LCR Quadtech/Genrad/IET Digibridge 1689 - use different calibration resistors

  Started by rodpp on 26 Jan, 2025 23:35
  Last post by RolandK on 06 Feb, 2025 15:29

  Views: 6426, Replies: 27

• Need DIY method for RF calibration

  Started by Conrad Hoffman on 14 Dec, 2024 22:38
  Last post by ingkarlgauss on 05 Feb, 2025 11:23

  Views: 3914, Replies: 10

• 3458A short

  Started by drhex on 03 Feb, 2025 15:20
  Last post by CalibrationGuy on 04 Feb, 2025 23:22

  Views: 2672, Replies: 9

• Error propagation formula and components tolerance (questions)

  Started by NightMoth on 04 Feb, 2025 11:23
  Last post by Conrad Hoffman on 04 Feb, 2025 13:47

  Views: 1730, Replies: 2

• ADI ADMX3652 - 6½ Digit, ±20 V DVM

  Started by Jendas on 15 Oct, 2023 21:10
  Last post by MadTux on 04 Feb, 2025 13:42

  Views: 8241, Replies: 13

• Source for unplated copper fork lugs?

  Started by TERRA Operative on 02 Feb, 2025 11:14
  Last post by Simmed on 03 Feb, 2025 19:02

  Views: 3305, Replies: 15

• 4737-A20, Leeds & Northrup Manual?

  Started by r6502 on 22 Jan, 2024 12:29
  Last post by F4 on 02 Feb, 2025 14:32

  Views: 1916, Replies: 1

• Leeds & Northrup 4737-A20 tear down

  Started by r6502 on 29 Jan, 2024 21:32
  Last post by F4 on 02 Feb, 2025 11:27

  Views: 19711, Replies: 22

• HP 3456A vs. 3457A

  Started by benj38 on 28 Jan, 2025 20:33
  Last post by MadTux on 01 Feb, 2025 16:26

  Views: 4168, Replies: 10

• How to create VNA calibration coefficients (delay, C0..C3) by measuring devices?

  Started by wb0gaz on 22 Jan, 2025 21:44
  Last post by wb0gaz on 31 Jan, 2025 03:23

  Views: 5039, Replies: 11

• Datron 1271 Replacement right side display

  Started by View[+]Finder on 29 Jan, 2025 20:50
  Last post by View[+]Finder on 30 Jan, 2025 22:36

  Views: 1251, Replies: 1

• IES ISW8000

  Started by lionelkjh on 27 Jan, 2025 16:44
  Last post by lionelkjh on 28 Jan, 2025 11:38

  Views: 1456, Replies: 2

• Equipment from the past

  Started by munorc on 23 Jan, 2025 16:38
  Last post by Vgkid on 27 Jan, 2025 20:50

  Views: 5217, Replies: 24

• the simPLEX for Spirent STR4500, where can download?

  Started by testpoint1 on 27 Jan, 2025 19:38

  Views: 1086, Replies: 0

• Shoud we ask the Cal Lab to adjust the multimeter to 24h specs?

  Started by rodpp on 19 Jan, 2025 12:12
  Last post by rodpp on 26 Jan, 2025 23:13

  Views: 4045, Replies: 17

• HP 3245A Universal Source - 1.5ppm jump in output

  Started by IanJ on 12 Jan, 2025 12:50
  Last post by Kleinstein on 25 Jan, 2025 16:19

  Views: 7414, Replies: 32

• Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??

  Started by Overspeed on 23 Jan, 2025 15:10
  Last post by factory on 24 Jan, 2025 20:23

  Views: 3231, Replies: 10

• Solartron 7081 - Reference Circuit

  Started by unseenninja on 20 Jul, 2024 00:37
  Last post by ch_scr on 23 Jan, 2025 07:30

  Views: 16414, Replies: 31

• Fluke 742 resistor hardware clone ? any interest ?

  Started by Overspeed on 07 Dec, 2024 10:53
  Last post by Overspeed on 22 Jan, 2025 16:52

  Views: 12474, Replies: 32

• Precsion Voltage Source from EDN article

  Started by munorc on 20 Jan, 2025 15:33
  Last post by Gyro on 22 Jan, 2025 12:56

  Views: 2974, Replies: 10

• DAC1220 REF Schemtaic +-10V

  Started by derZockerMP on 16 Jan, 2025 17:09
  Last post by Kleinstein on 20 Jan, 2025 14:24

  Views: 2294, Replies: 4

• Measuring Ripple

  Started by moosebiscuit on 17 Jan, 2025 20:59
  Last post by Conrad Hoffman on 19 Jan, 2025 04:55

  Views: 1772, Replies: 2

• When to use 24 hour or 90 day specs?

  Started by danielw22 on 17 Jan, 2025 05:11
  Last post by Overspeed on 17 Jan, 2025 14:14

  Views: 1602, Replies: 3

• 3458A differencies after calibration

  Started by Drirr on 18 Dec, 2024 05:47
  Last post by CalibrationGuy on 17 Jan, 2025 01:56

  Views: 6569, Replies: 22

• Half bridge circuit for pulse current measurement / calibration question

  Started by Overspeed on 15 Jan, 2025 20:02

  Views: 1108, Replies: 0

• Cheap GPSDO Buying Help 2024?

  Started by NT0Z on 10 Mar, 2024 20:39
  Last post by Leo Bodnar on 15 Jan, 2025 15:25

  Views: 66355, Replies: 65

• Looking for a high voltage SMU (1kV)

  Started by owiecc on 15 Jan, 2025 07:51

  Views: 1484, Replies: 0

• Analog Device article low noise 5V 5 Amp base on LT6658 but ???

  Started by Overspeed on 12 Jan, 2025 12:53
  Last post by Overspeed on 14 Jan, 2025 07:30

  Views: 2807, Replies: 12

• Power Designs 2K100P high voltage calibrated power source

  Started by Cyclotron on 08 Jan, 2025 18:02
  Last post by Cyclotron on 14 Jan, 2025 01:06

  Views: 5725, Replies: 15

• Copper Tellurium , perhaps not the best

  Started by Overspeed on 08 Jan, 2025 19:00
  Last post by Overspeed on 11 Jan, 2025 13:04

  Views: 8757, Replies: 18

• DC-accurate Low-pass-filter

  Started by Roehrenonkel on 11 Jul, 2024 17:49
  Last post by EC8010 on 10 Jan, 2025 10:41

  Views: 23128, Replies: 64

• How to _simply_ compare DC voltage performance of multimeters

  Started by Swake on 09 Jan, 2025 09:39
  Last post by Kleinstein on 09 Jan, 2025 19:31

  Views: 1369, Replies: 1

• Solartron 7151 Test and Calibration software for AR488- early Release

  Started by PascalNE on 09 Jan, 2025 16:18

  Views: 1119, Replies: 0

• How do DSO calculate the base and top amplitude?

  Started by michael2 on 09 Jan, 2025 00:27
  Last post by 2N3055 on 09 Jan, 2025 07:33

  Views: 1354, Replies: 2

• Oven controlled resistor article

  Started by Overspeed on 03 Jan, 2025 13:27
  Last post by mendip_discovery on 07 Jan, 2025 21:53

  Views: 2503, Replies: 8

• Symmetricom S300 WWVB antenna

  Started by lamune on 06 Jan, 2025 03:21

  Views: 1070, Replies: 0