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I’ve a linear sensor array (broadside). The array is 10m long and it contains 20 sensors. There’s a limit on the number of wires. I can have a handful of wires running the length of the array, b...

1 answer · posted 9d ago by misk94555‭ · last activity 8d ago by Olin Lathrop‭

Question Analog opamp

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misk94555‭ · 2024-12-09T20:07:51Z (9 days ago)

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Summing op-amp 10 meters long

I’ve a linear sensor array (broadside).  The array is 10m long and it contains 20 sensors.  There’s a limit on the number of wires.  I can have a handful of wires running the length of the array, but can’t have an individual wire going to each sensor.

I need to sum the signals form the sensors.  For the purposes of this question, I’d like to sum in analog.  Could a summing op-amp with a 10m long summing node work for this purpose?

The bandwidth of the signal is under 1 kHz, if that matters.

![diagram](https://electrical.codidact.com/uploads/cjtvpr1arrcc995wn9lsxm80rlna)

Analog opamp

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