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This paper introduces a kind of multi-channel parallel testing system. This system could provide five kinds of different interface and produce 145 channels parallel driving source. Concurrently the system could acquire a channel of PCM code and monitor the code in real time. AD5628 DAC and OPA4234 operational amplifier is used to realize output voltage in the range of 0∼31V.And the Export accuracy...
The testing system for parameters of high-current Thermoprotector uses PLC as its core equipped with touch display screen and micro-printer. It also employs constant-current electronic load to supply constant high-current (100A), and utilizes hall element to convert current signal to voltage signal fed backed to PLC, which record the trip time or recovery time of thermoprotector. It can test whether...
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