Space-saving for the small camera workshop: Multimeter and oscilloscope in one device

[Andreas Thaler]

Andreas start introducing the oscilloscope. (for me) It is necessary to check quickly and validate functionnality. Basic or advance it depend of your skills, methodology. Long discussion.

This isn't my first oscilloscope. I've had several Hamegs and a Siemens 4-channel oscilloscope with 100 MHz bandwidth. It's an impressive piece of furniture

And then there's a tiny one from China, which doesn't have autotrigger and is controlled via the circuit board. The new one is much more convenient.

All of these measuring devices don't do anything on their own. If you don't know what to measure, how, and why, and then interpret it, nothing useful will come of it.

 

[Nimbus62]

For sure

This isn't my first oscilloscope. I've had several Hamegs and a Siemens 4-channel oscilloscope with 100 MHz bandwidth. It's an impressive piece of furniture

And then there's a tiny one from China, which doesn't have autotrigger and is controlled via the circuit board. The new one is much more convenient.

All of these measuring devices don't do anything on their own. If you don't know what to measure, how, and why, and then interpret it, nothing useful will come of it.

For sure, need skills especially for advance usage. But simply, just looking a signal a basic one is very very usefull otherwise you are blind man..
Time / freq measurement is nice to have to avoid the usage of an external time/counter.

"All of these measuring devices don't do anything on their own"
For sure. You have to developp external interface to facilitate investigation. Ex I developp a test box for Minolta XM and I integrate different stages to be able to trig on different signals:
- X sync signal (+5V 4,7K pull-up)
- Curtain sync (light cell)
- etc..

Example for the curtain speed I developp only the cell interface and use the scope math capability to do time measurement, statistics on several cycle and also isolate min and max value to validate it is in side manufacturer spec (many time average is OK but you have some time a bad exposure time due to... electric ou mecanical failure, age of the mecanic, critical adjustment somewhere).

One tool alone is not sufficient. Need to associate several one.
What is plaisant is to imagine a bench chaining different equipmeent to replace existing one you cannot get.? (High cost or do not exist anymore : ex Minotal XM test box).

 

[Andreas Thaler]

The PeakTech had its first use today to troubleshoot a Minolta 7000 AF and was successful.

Link to the report follows

 

[Andreas Thaler]

View attachment 394185

The PeakTech had its first use today to troubleshoot a Minolta 7000 AF and was successful.

Link to the report follows

Post in thread 'Copal S(quare) Shutter: Testing when removed?'
https://www.photrio.com/forum/threads/copal-s-quare-shutter-testing-when-removed.212393/post-2881195

 

[4season]

I suppose that a person could go a step further with this:

 

[Andreas Thaler]

For sure


For sure, need skills especially for advance usage. But simply, just looking a signal a basic one is very very usefull otherwise you are blind man..
Time / freq measurement is nice to have to avoid the usage of an external time/counter.

"All of these measuring devices don't do anything on their own"
For sure. You have to developp external interface to facilitate investigation. Ex I developp a test box for Minolta XM and I integrate different stages to be able to trig on different signals:
- X sync signal (+5V 4,7K pull-up)
- Curtain sync (light cell)
- etc..

Example for the curtain speed I developp only the cell interface and use the scope math capability to do time measurement, statistics on several cycle and also isolate min and max value to validate it is in side manufacturer spec (many time average is OK but you have some time a bad exposure time due to... electric ou mecanical failure, age of the mecanic, critical adjustment somewhere).

One tool alone is not sufficient. Need to associate several one.
What is plaisant is to imagine a bench chaining different equipmeent to replace existing one you cannot get.? (High cost or do not exist anymore : ex Minotal XM test box).

With such work, day and night fly by, and you find yourself exhausted in a tangle of cables, tools, and electronic components. It takes the same amount of time to tidy everything up as it did for the project - at least

 

[Andreas Thaler]

I suppose that a person could go a step further with this:

Good thing I don't have a budget anymore, that's the only temptation there!

Digilent – Start Smart, Build Brilliant.

Shop now for USB test and measurement devices, FPGA development boards, programming solutions and educational products.

digilent.com

 

[Andreas Thaler]

For sure


For sure, need skills especially for advance usage. But simply, just looking a signal a basic one is very very usefull otherwise you are blind man..
Time / freq measurement is nice to have to avoid the usage of an external time/counter.

My use of the oscilloscope is very simple, but I'm glad I'm not involved in frequency engineering, which involves analyzing and measuring curves in detail.

But you can delve into any topic to that extent; it's a source of endless entertainment, and that's fascinating