Vibrating Wire Sensor unit Stimulating unit — Volkswagen K 70

19 Янв 2015 | Author: | Комментарии к записи Vibrating Wire Sensor unit Stimulating unit — Volkswagen K 70 отключены
Volkswagen K 70

Sensor unit, Stimulating

Sensor unit

Strain measuring method vibrating for application by spot welding (see also products)

The strain gage will be (welded) directly on the part cell, concrete embedment gage, steel girder) to be Thereby changes the strain its length in common with the to be monitored. Together with the gage changes the containing wire its length and therewith its frequency. After stimulating the to vibrate it attunes itself to its frequency. The frequency can be picked up by a sensor (see below). The resolution of such a strain is defined below one micrometer

If the out of the measured frequency deduced at a started monitoring is deducted by the measured frequency, it is possible to out the change of length. By the known proportions of the monitored part might be known normally) you can the change of the power which effect to that part, to the load of anchors or stilts in special foundation construction or to the force to bridge buildings for

Technical specification

measuring max. 2500 µstrain

length 60,2 mm

temperature 10,8 В· 10 -6 / K

length x width x height of sensor unit 70,5 x 7,8 x 1,7 mm

approx. 1,1 g

Stimulating unit

The unit strums the wire by its system and stimulates the wire to The vibrating wire induces its own frequency (natural frequency) the inductors of the stimulating unit, can be picked up and displayed by an appropriate instrument (see also

Furthermore the stimulating unit a sensor for temperature, which can be out and evaluated by our VW-Indicator manually or via the card (see products) by our measuring system. Thus by temperature can be considered at the evaluation of the results.

The stimulating units be delivered with ready cables, the length is according to request. They could be in raw state too (see right so you can finish them yourselves at own requirements.

For assembly of the stimulation unit are fixation clips available. will be also fixed our spot welding device, so is only one tool kit necessary for the vibrating wire and stimulating

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