Vibrating Wire Surface-Mounted Strain Gauge (High Precision for Steel & Concrete Monitoring)

Product Description

Product Introduction

The YTVA02A Surface-Mounted Strain Gauge System is a high-precision instrument designed to measure surface strain variations on structures including steel surfaces, concrete surfaces, and hard rock strata. As a vibrating wire sensor engineered for long-term stability, it is suitable for geotechnical, hydraulic structures, and structural safety monitoring projects. Primarily deployed in dams, bridges, foundation pits, and slopes, it monitors internal strain within concrete structures.

Product Features

Imported Steel String: High durability.

Press Riveting + Laser Welding: Ensures reliable fixation of the steel string.

304 Stainless Steel Structure: Provides strong protection.

Specification

Parameter Name	Specification
Measurement Gauge Length	150mm
Measurement Range	±1500 μ ε
Accuracy	0.1% F.S.
Temperature Measurement Range	-40 to +80℃
Temperature Measurement Accuracy	0.5℃
Electrical Connection	Hydraulic Observation Cable
Insulation Resistance	≥50 MΩ
Operating Temperature	-40℃ to 80℃
Operating Humidity	5% - 95%
Main Material	304 Stainless Steel
Instrument Length	165mm
Protection Grade	IP68

Product Structure

The instrument is constructed of 304 stainless steel. Its overall length is 165mm. The sealed end blocks at both ends have an outer diameter of 12mm and a length of 16mm; the protection tube (strain rod) has an outer diameter of 8mm and a length of 133mm; and the coil protective casing has an outer diameter of 22mm and a length of 45mm. The default extended length of the instrument cable at factory shipment is 3m. The outer casing adopts a grounded double protective sheath and a twisted shielded polyurethane cable, featuring resistance to mechanical wear and interference.

Working Principle

Based on the vibrating wire principle, a vibrating wire sensor consists of a force-bearing elastic deformation housing, a steel string, left and right fixed ends (clamps for securing both ends of the steel string), an excitation component (to impart a specific form and magnitude of vibration to the steel string for frequency monitoring), and a receiving coil (a coil refers to a wire winding arranged in a circular configuration), among other components. The frequency of the vibrating wire is related to the magnitude of string tension (the internal force between parts of an object exerted by stretched flexible objects such as steel strings or ropes). Once the geometric dimensions of the vibrating wire (i.e., the structure and dimensions of the product) are determined, the variation in the vibration frequency of the vibrating wire can characterize the strain magnitude generated by the deformation of the measured structure.

Application Fields

Vibrating wire strain gauges are used for strain monitoring on concrete surfaces and steel structure surfaces in projects such as reservoirs, dams, high-rise buildings, foundations, tunnels, bridges, and slopes.

Application:Reservoirs, Dams, High Formwork, Foundations, Bridges, Slopes

Packing & Delivery

Company Profile

Xiamen Xinde loT Technology Co., Ltd.

Xiamen Xinde IoT Technology Co., Ltd. specializes in applied research of ultrasonic measurement technology. Its self-developed non-contact ultrasonic oil level monitoring products, exported globally, lead internationally in the field. With nationwide distributors, they're favored by high-end overseas clients. Holding multiple patents, the firm holds titles like "Technology Giant" and "National High-Tech Enterprise". Over 60% of staff focus on R&D, with core members boasting a decade+ industry experience—bolstering strong innovation capabilities.Trusted by users worldwide, it stands out for superior product quality and comprehensive technical services.

FAQ

Q1: What is your company's core business?

A: THINKSONIC TECHNOLOGY CO., LTD. specializes in R&D and manufacturing of precision sensors and IoT solutions. Our product lines cover:

- Automotive IoT: Ultrasonic level sensors, Vehicle Telematics Units, Active Safety Video Terminals

- Structural Monitoring: Settlement/inclination sensors, Hydrostatic level gauges, Strain/pressure gauges, Data loggers with wireless transmission.

Q2: Are you a manufacturer or trading company?

A: We are a manufacturer with in-house R&D center and production facilities in Xiamen, China. All products are independently designed and strictly quality-controlled.

Q3: What is your minimum order quantity (MOQ)?

A: Standard products start from 10 units. MOQ for customized items varies by project complexity - contact us for evaluation.

Q4: How long is your lead time?

A:Standard products: 15-30days after order confirmation. , a bit longer for customized products. But we are very flexible on the lead time, it will depend on the specific orders.

Q5:Can you customize products?

A:Yes. We offer: Logo printing; Packaging redesign; Technical parameter adjustments; Private labeling

Q6:Can I get samples?

A:We have to charge both samples and freight cost, and when you place orders, we'll refund your sample cost.

Q7:How to handle after-sales issues?

A:Our support includes: (1)Online troubleshooting (2)Technical documentation & video guides

Q8:How to visit your factory?

A: Welcome to schedule an audit: (1) Submit visit request via "Contact Supplier"  (2) We'll send official invitation letter within 48h   (3)Virtual factory tour available via video call