Embedded Strain Gauge System for Long-Term Internal Monitoring of Concrete, Geotech & Structures

• Customization: Available
• Gauge Length: 150mm
• Measurement Range: ±1500με
• Model NO.: YTVA01A
• Accuracy: 0.1%F.S
• Temp. Range: -40~+80ºC
• Protection Rating: IP68
• Length: 154mm
• Material: 304 Stainless Steel
• Transport Package: Airplane Box
• Specification: standard configuration
• Trademark: ThinkSonic
• Origin: China

Product Description

Product Introduction

The embedded strain gauge system is a high-precision measuring instrument used to measure internal strain changes in concrete structures. It is a string-type sensor suitable for long-term and stable monitoring in geotechnical, hydraulic structure, and structural safety monitoring projects. It is primarily applied for monitoring internal concrete strain in projects such as dams, bridges, foundations, and slopes.

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
Gauge Length	150mm
Measurement Range	±1500 μ ε
Accuracy	0.1%F.S
Temperature Measurement Range	-40~+80℃
Temperature Accuracy	0.5℃
Electrical Connection	Hydrological Observation Cable
Insulation Resistance	≥50MΩ
Operating Temperature	-40℃~80℃
Operating Humidity	5%–95%
Main Material	304 Stainless Steel
Instrument Length	154mm
Protection Grade	IP68

Accuracy: Refers to the verification accuracy of a single instrument under the factory calibration environment.

Resolution: Refers to the minimum change value of the measured object that the sensor can detect and distinguish within the measurement range. 

Working Principle

The YTVA01A vibrating wire strain gauge is constructed from 304 stainless steel. The total length of the instrument is 154mm. The sealed end blocks at both ends have an outer diameter of 20mm and a length of 3.5mm; the protection tube (strain rod) has an outer diameter of 8mm and a length of 145mm; the coil protective shell has an outer diameter of 22mm and a length of 45mm. The default extended length of the instrument cable at the factory is 3m. The cable features a grounded double-protective-sheath, twisted-pair shielded polyurethane design, with resistance to mechanical wear and interference.

Working Principle

Based on the vibrating wire principle, the vibrating wire sensor is composed of a force - bearing elastic deformation housing, a steel wire, left and right fixed ends (clamps that fix both ends of the steel wire), excitation (to make the steel wire obtain a certain form and magnitude of vibration for frequency monitoring), a receiving coil (the coil refers to a wire winding wrapped in a ring shape), and other components. The frequency of the vibrating wire is related to the magnitude of string tension (the force between internal parts of an object exerted by stretched flexible objects such as steel wires and ropes). After the geometric dimensions of the vibrating wire (the structure and size of the product) are determined, the variation in the vibration frequency of the vibrating wire can characterize the magnitude of strain after deformation of the measured structure. 

Application Fields

The embedded strain gauge is used for strain monitoring in concrete structures of projects such as reservoirs, dams, high-rise buildings, foundations, tunnels, bridges, and 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