Climatic Chamber Testbench 160503 Climatic Chamber Testbench Sophie
Climatic Chamber & Testbench 16/05/03 Climatic Chamber & Testbench - Sophie Baron 1
Climatic Chamber & Testbench Project history • Why a Climatic Chamber? • Previous facility • Present needs New project description • Principles • Testbench • Climatic Chamber o Upgrade the old one… o Or buy a new one 16/05/03 Climatic Chamber & Testbench - Sophie Baron 2
Why? 3 Climatic chambers in the group since 1976 All the materials rented by the pool have been tested in temperature: components, power supplies, modules (Fastbus, Camac, Nim, Vme) • • 16/05/03 Ageing (fast temperature variations) – often for components Burn-in (high temperature tests) Performance evolution with temperature – ex: ADCs linearity Integrated in the climatic chamber by the group: voltage variation for VME and Fastbus modules on custom backplanes Climatic Chamber & Testbench - Sophie Baron 3
Previous facility Climatic Chamber (Heraeus 1986) Crate VME 6 U With custom backplane Temperature control panel (manual) Voltage control panel (manual) Fastbus crate with custom backplane camac nim VME 6 U Power Supplies 16/05/03 Climatic Chamber & Testbench - Sophie Baron 4
Present needs Climatic Chamber • • New custom boards created for LHC to be tested New form factor 9 U VME 64 x Temperature & voltage remote control needed Refrigerant to be changed Testbench • New remote power supply crates • Better understand the dynamic behavior of custom VME boards (HARP) 16/05/03 Climatic Chamber & Testbench - Sophie Baron 5
New project principles Provide a general facility available TO ALL: Development groups, users, … And for ALL TYPES of equipment: Components, electronic boards, power supplies, … 16/05/03 Climatic Chamber & Testbench - Sophie Baron 6
New project principles Complete rack, equipped with CAMAC, NIM, remote power supply, PC and terminal 9 U 64 x VME temperature tests for all Crate with cut power supply lines electronics VME module tests in varying Temperature variation conditions zone Temperature variations Power supply variation zone (Climatic Chamber) Power supply voltage Fixed power supplies zones variation (Climatic Chamber) Current variations on the backplane Climatic Chamber -Temperature tests Measurement of static and dynamic current of a VME crate/ -Power supply variation tests module 16/05/03 CAMAC Crate NIM Crate Oscilloscope VME 9 U 64 x Crate with remote power supply PC with ethernet PCI-MXI interface Windows/unix Labview Visual C++ PC or/& Terminal Canbus & 6 U VME Crate Rack -dynamic & static current measurement of the crate and of individual vme modules -current variations generation on the backplane Climatic Chamber & Testbench - Sophie Baron profibus controller Control - Climatic Chamber control -VME & Camac control -results analysis 7
New testbench camac nim Oscilloscope with GPIB interface to read back the current measurement results Interface load-backplane to generate current variations (simulate modules activity) 9 U VME Crate 64 x with remote power supply oscillo Current probes measuring dynamic & static current used by the crate Power supply remotely mounted 16/05/03 Climatic Chamber & Testbench - Sophie Baron 8
Chamber modification keep the old one… Change the refrigerant Remove the Fastbus crate Replace the old 6 U crate by a VME 9 U 64 x custom crate Add DAC modules to control remotely the temperature Remove the voltage control panel Change power supplies with new Wiener power supplies (with canbus) 16/05/03 Climatic Chamber & Testbench - Sophie Baron 9
Chamber modification …or buy a new one add a VME 9 U 64 x custom crate add Wiener power supplies (with canbus) 16/05/03 Climatic Chamber & Testbench - Sophie Baron 10
Chamber modification Upgrade the current one 16/05/03 Buy a new one Change refrigerant (ext. company) 3500 chf New climatic chamber 28000 chf Insert new backplane (home made) 500 chf +manpower Insert new backplane (home made with advices from the company) 500 chf +manpower Remote control of the temperature 4000 chf +manpower Remote control of the temperature - Remote control of the power supplies 2000 chf +manpower TOTAL 10000 chf +manpower TOTAL 30500 chf +manpower Climatic Chamber & Testbench - Sophie Baron 11
Chamber modification Upgrade the old one • Material 20 years old • Remote interface for temperature control => ESS • Refrigerant change => external company • Investment: 10000 chf + manpower • Useful volume: 660 x 630 x 600 =>VME modules and small components only 16/05/03 Buy a new one • New material • Remote interface for temperature control integrated • Refrigerant ok • Investment: 30500 chf + manpower • Useful volume: 710 x 590 x 1250 =>VME & all other modules allowed Climatic Chamber & Testbench - Sophie Baron 12
Conclusion Environmental testing facilities must be provided to designers What type of electronics do you need to test? Þ Which type of chamber do you need? or 16/05/03 Climatic Chamber & Testbench - Sophie Baron ? 13
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