How long could the cable be? Starting at the 10,000 Hz location on the x-axis, move up the y-axis to the 4 mA line. Typically, when you use long cable lengths for your vibrating wire measurements, you experience a weaker signal with a greater chance of interference. At Campbell Scientific, our vibrating wire. Distributed Fiber Optic Vibration Sensing (DVS) is an advanced optical sensing technology that uses single-mode optical fiber (SMF, G652 recommended) as both the sensing medium and signal transmission carrier. Unlike traditional point-type vibration sensors, DVS realizes continuous, real-time. There are many reasons why it may be necessary to incur long wiring distances between a monitor and its connected sensors. For example, harsh conditions at the sensor location may not allow the monitoring system to be co-located due to temperature, humidity, steam, dust, moisture, or aggressive. Fiber optic infrastructure is essential in the transmission of data of all kinds, both for the long haul and shorter distances in cities. Optical fibers are also preferred for data infrastructures inside buildings, especially in highly secured organizations and government facilities. Wilcoxon's downloadable Excel Accelerometer Maximum Cable Length Calculator will.