Waterproof Vibrating Wire Strain Gauge

The waterproof vibrating-wire strain gauge provides reliable long-term monitoring with a measurement range of 800 με (tension) and 1200 με (compression), featuring ≤1.5% FS comprehensive error. Its fully sealed waterproof structure and corrosion-resistant materials ensure stable, interference-resistant operation even in harsh, humid environments.

SKU: CCHN-SG-VW

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Delivery date: 6-25 days

Overview

Constructed with high-quality corrosion-resistant and wear-resistant materials, this vibrating-wire strain gauge ensures reliable performance unaffected by external moisture, underwater conditions, or corrosive environments. It delivers stable operation in both hydraulic engineering and mining applications. Featuring a total error of ≤1.5% FS and a resolution as high as 0.02% FS, it captures even the slightest structural changes.

Specification

Model		CCHN-JX-YBJ-51(Surface)	CCHN-JY-V400(Embedded）
Dimensions	Gauge Length L	100/150/250mm	—
	Effective Diameter d	23mm	—
	End Diameter D	30mm	—
	Measurement Range	800με(Tension), 1200με(Compression)
Performance Parameters	Temperature Range	-25 ～ +60℃
	Temperature Accuracy	±0.5℃
	Temperature Correction Coefficient b	≈13.5×10⁻⁶/℃	—
	Elastic Modulus Eg	300～500 MPa	—
	Insulation Resistance	≥50 MΩ	—
	Total Error	—	≤1.5% FS
	Resolution	—	≤0.02% FS
	Specification	—	10

Features

Wide Measurement Range: This vibrating wire strain gauge supports 800 με tension and 1200 με compression measurement, making it ideal for structural health monitoring and geotechnical monitoring applications.
High Accuracy: With comprehensive error ≤1.5% FS and resolution ≤0.02% FS, the strain gauge ensures stable frequency output for long-term structural monitoring projects.
Waterproof and Corrosion-Resistant: Featuring a fully sealed waterproof structure and ≥50MΩ insulation resistance, this precision vibrating wire strain gauge delivers reliable performance in concrete structures, bridges, and underground engineering.

Structural Diagram

JX-YBJ-51(0-100mm)

surface vibrating wire strain gauge dimension

Tips: What is a vibrating wire strain gauge?

The vibrating wire strain gauge is a high-precision sensor based on the principle that the vibration frequency of a steel string changes with tension. It is widely used for long-term health monitoring of structures such as bridges, dams, buildings, and pipelines. Its core construction includes mounting blocks at both ends, a tensioned steel string in the middle, and electromagnetic coils for excitation and frequency pickup. When the monitored structure deforms, the relative displacement between the end blocks alters the steel string's tension, thereby changing its natural vibration frequency. By measuring this frequency and applying temperature compensation via an internal thermistor, microstrain can be precisely calculated. Offering significant advantages such as excellent long-term stability, strong interference resistance, and long-distance transmission capability, it reliably reflects stress conditions.