Theta Sensors Corporation
Product Center
Professional sensing solutions for equipment monitoring—empowering sensor, edge, cloud,
and AI to enhance industrial efficiency and safety
Bolt Preload Acquisition Device DS180
DS180, supports up to 8 probes- Number of Channels8
- Feature DataPreload
- Preload Accuracy1.5%
- Bolt RangeInstallation on threaded end: M30 and above
Installation on hexagonal head: M20 and above
Total length of bolts: 200-6000 mm - Temperature Range-40~85°C
- Temperature Accuracy±1℃
- Data Acquisition RateUp to 1Hz, configurable
- Communication100M Ethernet; RS485 (optional)
- Ingress ProtectionIP67
Product Overview
Technical Specifications
Downloads
Overview
The DS series bolt preload acquisition devices are industrial-grade devices designed to monitor the health of critical bolts in industrial equipment. The devices feature resistance to interference, high accuracy, and durability, making them suitable for long-term operation in harsh industrial environments.
DS180 supports up to 8 probes. The probes feature ultra-thin design and easy installation. The DS series preload acquisition devices are suitable for various applications, including wind turbine foundation anchor bolts, tower bolts, blade bolts, hydroelectric turbine fastening bolts, and steel bridge fastening bolts.
The device uses ultrasonic technology to accurately measure the time of the reflective ultrasonic waves. Additionally, each probe is equipped with a temperature probe to measure the surface temperature of the bolt. By applying a temperature compensation algorithm, the device can measure accurately and reliably the bolt's preload (axial tensile force) at different temperatures.
The sensor data is transmitted to remote monitoring system, allowing users to remotely monitor the bolt preload and receive timely alerts in case of loosening, fatigue, or fracture of the bolt. This allows continuous tracking of the entire process of bolt loosening, ensuring safe equipment operation, preventing unplanned downtime, and reducing maintenance time and costs.
The probe is installed non-intrusively on one end of the bolt. The DS series bolt preload acquisition device emits ultrasonic waves into the bolt's interior, and when the ultrasonic waves reach the other end or a fracture surface of the bolt, they are reflected back and received by the device for processing. Utilizing advanced signal processing technology and temperature compensation algorithms, the device can accurately calculate the preload and further determine the bolt’s condition, such as loosening, fatigue, or fracture.
Submission