Please Note: GEOKON will be closed Thursday, November 28 and Friday, November 29 for the Thanksgiving Holiday. Normal business hours resume on Monday, December 2.
The Model 4300 Vibrating Wire Borehole Stressmeters are designed to measure stress changes in rock and can be installed in boreholes up to 100 feet deep. The Stressmeter consists of a high strength steel proving ring wedged tightly across one diameter inside a borehole and a vibrating wire tensioned across the other diameter inside the stressmeter. Changes in rock stress cause a related change in the resonant frequency of vibration of the tensioned wire providing output which is read by the compatible Readouts and Dataloggers shown below.
¹Depends on rock modulus.
²High temperature versions (up to 200°C) available on request.
Please Note: GEOKON maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice. Various instruments are discontinued over time and replaced with new, updated models.