Difference between revisions of "TestEquipment"
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==Specific Equipment== | ==Specific Equipment== | ||
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| + | Don't buy one without GPIB/USB/Serial. Useless for documentation. | ||
===DVM=== | ===DVM=== | ||
Density = Mass over Volume. Are you dumb? | Density = Mass over Volume. Are you dumb? | ||
* https://www.eevblog.com/forum/projects/ppmgeek!-5-5-digit-dvm-volt-ref-cal-(for-arduino-or-any-uc-w-spi)/ - DIY 5.5 DVM. I haven't dug through this yet. | * https://www.eevblog.com/forum/projects/ppmgeek!-5-5-digit-dvm-volt-ref-cal-(for-arduino-or-any-uc-w-spi)/ - DIY 5.5 DVM. I haven't dug through this yet. | ||
| + | ===Oscilloscoops=== | ||
===Vector Network Analyzers=== | ===Vector Network Analyzers=== | ||
* https://theamphour.com/533-microwave-measurement-with-joel-dunsmore/ Amp Hour 533 "Cables are Dogs". Dogs, and VNAs huh...? ... There is a book written by this fellow that would be worth reading if you are working with a VNA (Handbook of Microwave Component Measurements). As noted in the podcast, the first couple chapters are theory, the second section of the book is solving practical problems, and gives specific steps for a given scenario. | * https://theamphour.com/533-microwave-measurement-with-joel-dunsmore/ Amp Hour 533 "Cables are Dogs". Dogs, and VNAs huh...? ... There is a book written by this fellow that would be worth reading if you are working with a VNA (Handbook of Microwave Component Measurements). As noted in the podcast, the first couple chapters are theory, the second section of the book is solving practical problems, and gives specific steps for a given scenario. | ||
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* https://www.eevblog.com/forum/rf-microwave/how-to-measure-vswr-of-tiny-antennas-how-to-eliminate-effect-of-vna-cables/ - calibrating with antennas | * https://www.eevblog.com/forum/rf-microwave/how-to-measure-vswr-of-tiny-antennas-how-to-eliminate-effect-of-vna-cables/ - calibrating with antennas | ||
* https://www.eevblog.com/forum/testgear/banggood-50-ohm-bnc-feed-through-terminator-a-quick-review/50/ - 50 ohm terminator deep dive. Considering parasitic effects (i.e. when a component's package inherent capacitance or inductance starts to affect the circuit at high frequency). | * https://www.eevblog.com/forum/testgear/banggood-50-ohm-bnc-feed-through-terminator-a-quick-review/50/ - 50 ohm terminator deep dive. Considering parasitic effects (i.e. when a component's package inherent capacitance or inductance starts to affect the circuit at high frequency). | ||
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==Tips/Techniques== | ==Tips/Techniques== | ||
Revision as of 17:00, 23 April 2024
The goal is not to have all of the test equipment, or none, but to have the right test equipment.
Footprint is important. You will want to spend some time thinking about Storage. Try to get equipment that has a digital interface, so that you can automate your setup.
Specific Equipment
Curve Tracer
Don't buy one without GPIB/USB/Serial. Useless for documentation.
DVM
Density = Mass over Volume. Are you dumb?
- https://www.eevblog.com/forum/projects/ppmgeek!-5-5-digit-dvm-volt-ref-cal-(for-arduino-or-any-uc-w-spi)/ - DIY 5.5 DVM. I haven't dug through this yet.
Oscilloscoops
Vector Network Analyzers
- https://theamphour.com/533-microwave-measurement-with-joel-dunsmore/ Amp Hour 533 "Cables are Dogs". Dogs, and VNAs huh...? ... There is a book written by this fellow that would be worth reading if you are working with a VNA (Handbook of Microwave Component Measurements). As noted in the podcast, the first couple chapters are theory, the second section of the book is solving practical problems, and gives specific steps for a given scenario.
- https://www.eevblog.com/forum/rf-microwave/inexpensive-cal-standards/ - Notes on cals for VNAs.
- https://www.eevblog.com/forum/rf-microwave/how-to-measure-vswr-of-tiny-antennas-how-to-eliminate-effect-of-vna-cables/ - calibrating with antennas
- https://www.eevblog.com/forum/testgear/banggood-50-ohm-bnc-feed-through-terminator-a-quick-review/50/ - 50 ohm terminator deep dive. Considering parasitic effects (i.e. when a component's package inherent capacitance or inductance starts to affect the circuit at high frequency).
Tips/Techniques
Consider Digital Interfaces for All Equipment
If you want to get serious work done, you are probably going to want to script or automate your setup. So beware of old Bench DMMs, function gens, and other equipment that doesn't have at least a GPIB interface.
Output of equipment at 0 Volts
- https://www.eevblog.com/forum/testgear/itech-it6121-precision-power-supply-always-display-a-tiny-reading/msg5424086/#msg5424086 Equipment is not guaranteed to output 0 volts, unless specified.
Try to Support Local Businesses
If there is a vendor of a tool or TE near you, then buy from them.
External Links
- https://w140.com/tekwiki/wiki/Main_Page The Tek Wiki, is actually quite well done.
