Application of Fiber Bragg Grating Sensing Technology - Application of FBG Sensor - Application of FBG-Application of FBG Demodulator - Application of FBG Sensing in Industry
FBG Sensing Technology for Monitoring the Force Status of Robot Joints:
Robotics has revolutionized the way we work in various industries by automating various tasks. However, robots require precise control to ensure optimal performance and safety. One of the most critical factors for robot control is the measurement of forces and torques at robot joints. The measurement of these parameters is essential to ensure that the robot operates correctly, and its joints are not overstressed. Fiber grating sensing technology has emerged as a promising solution to monitor the force status on robot joints. In this article, we will discuss the problems that fiber grating sensing technology can solve, and how Beijing Dacheng Yongsheng Technology Co., Ltd.(short for DCYS ) can help to monitor the force status on robot joints in the robotics.
Fiber Bragg Grating Sensing Principle：
Fiber Bragg gratings (FBGs) are periodic structures that are inscribed in the core of an optical fiber. These structures reflect a specific wavelength of light that is determined by the periodicity of the grating. When the grating is subjected to mechanical or thermal strain, the reflected wavelength changes in a predictable manner. By monitoring the reflected wavelength, changes in strain, temperature, and other parameters can be detected. FBG sensors can be used to monitor a wide range of parameters, including strain, stress, temperature, and vibration.
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Demand Analysis for Monitoring the Force Status of Robot Joints:
The measurement of forces and torques at robot joints is essential for several applications, including motion control, trajectory planning, and safety. For example, in industrial robots, excessive force or torque at a joint can cause damage to the robot or the surrounding environment. In collaborative robots, monitoring the force status of robot joints is crucial for ensuring safety around humans. Additionally, in medical robotics, monitoring the force status of robot joints is necessary to ensure that the robot does not cause injury to the patient.
Why Monitoring the Force Status of Robot Joints is Needed:
The measurement of forces and torques at robot joints is critical for maintaining optimal performance and safety. By monitoring the force status of robot joints, we can detect anomalies and potential failures before they occur, thereby preventing damage to the robot and surrounding environment. Additionally, the measurement of forces and torques at robot joints is necessary for precise control and trajectory planning.
Difficulties in Monitoring the Force Status of Robot Joints:
The measurement of forces and torques at robot joints presents several challenges, including sensor placement, calibration, and interference from external sources. Conventional sensing technologies, such as strain gauges or load cells, require physical attachment to the robot's surface, making them susceptible to external vibrations and electromagnetic interference. Additionally, calibration of these sensors can be time-consuming and complex.
What Problems can be Solved by FBG Sensing Technology:
Fiber grating sensing technology provides several advantages over conventional sensing technologies. FBG sensors can be embedded in the robot's structure, making them less susceptible to external vibrations and electromagnetic interference. Additionally, FBG sensors require no external power source, making them ideal for remote and harsh environments. Furthermore, FBG sensors can measure multiple parameters, including strain, temperature, and force, making them versatile and cost-effective.
Recommended fiber grating strain sensors:
This product is a high-range fiber bragg grating strain sensor (FBG strain gauge) used for strain measurement. It can be used in a single-ended structure, where it is inserted into the object to be measured for strain measurement. It can also be used in a double-ended structure, where it is fixed with a fixture or bonded directly to the surface for strain measurement, enabling multi-point strain measurement when connected in series. The structure of this product is the same as that of fiber bragg grating stress sensors.
Product Overview:
The OFSCN® high-range fiber bragg grating strain sensor (FBG strain gauge) consists of fiber connectors (FC, SC, LC, ST, etc.), high elastic materials, and single-point FBG encapsulation. Depending on the materials used, it can work at room temperature or a maximum high temperature of 120 degrees Celsius (customizable upon request).
This product is characterized by its small size, light weight, high tensile and compressive strength, waterproof and moisture-proof properties, and full sealing. By utilizing the strain characteristics of FBG, this sensor can be inserted, welded, bonded, or adhered to the internal or surface of the test structure for strain detection and monitoring.
1500με Fiber Bragg Grating Strain Sensor - FBG Strain Gauge - Metal Encapsulation - High Temperature FBG Strain SensorThe product is a fiber Bragg grating strain sensor (FBG strain gauge) encapsulated in seamless steel tube, used for strain measurement. In most cases, it is a single-point single-ended structure, or it can be produced as a multi-point single-ended structure. In a few cases, it can also be a double-ended structure. The deployment method of the product depends on the supporting fixtures, which can be directly inserted into the test object, or installed by surface welding with corresponding fixtures, bolted with drilled holes for fixation, adhesive surface mounting, tied with straps for fixation, or fixed with clamps, among various installation methods. This product is a basic structural product, which can be calibrated as a FBG displacement sensor, or used as a FBG stress sensor.
Product Summary:
The OFSCN® Capillary Seamless Steel Tube Fiber Bragg Grating Strain Sensor (FBG strain gauge) is composed of fiber optic connectors (FC, SC, LC, ST, etc.), stainless steel seamless tubes, and single-point FBG encapsulation.
It can also be customized as a high-temperature resistant fiber Bragg grating strain sensor.
This product features a small size, lightweight, high tensile and compressive strength, waterproof, moisture-proof, and fully sealed characteristics. By utilizing the strain characteristics of the FBG, this sensor can be inserted, clamped, surface-mounted, glued, or embedded into the measured structure to perform strain detection and monitoring.
Fiber Bragg Grating Stress Sensor - FBG Stress Gauge - Bolt and Anchor Rod Stress DetectionThis product is a FBG stress sensor (FBG stress gauge) that is encapsulated in seamless steel tubes or polymer materials for stress measurement. It can be designed as a single-ended structure for insertion into the tested object for stress measurement, or as a double-ended structure for immersion or surface attachment to enable multiple-point stress measurement in series. The structure of this product is the same as various fiber optic grating strain sensors.
Principle of FBG Stress Sensor:
The FBG stress sensor is a derivative application of the OFSCN® FBG Strain Sensor. The relationship between them is as follows: Stress of the tested object = Elastic modulus of the tested object × Strain. Therefore, the structure of the FBG stress sensor is the same as the OFSCN® FBG Strain Sensor. However, since the tested materials may vary for customers who purchase FBG stress sensors, the calibration formula is given in terms of micro-strain and corresponding wavelength.
Beijing Dacheng Yongsheng Technology Co., Ltd.:
Beijing Dacheng Yongsheng Technology Co., Ltd.(short for DCYS) is a professional manufacturer of fiber grating sensors, fiber grating demodulators and system software. Specializing in the production of various fiber grating sensors, including temperature, strain, stress, displacement, vibration, shape sensors, etc. DCYS also produces fiber grating demodulators, and can customize and develop related application software.
Recommended fiber grating demodulator:
This product is produced by DCYS, and it is a high-speed high-frequency fiber Bragg grating demodulator(Interrogator). The fiber grating demodulator is compatible with various specifications and models of OFSCN® fiber bragg grating sensors (temperature, strain, stress FBG sensors, etc.). It features adjustable port density (4, 8, 12, 16 channels) and high-speed high-refresh rate capabilities.
DCYS Helps to Monitor the Force Status of Robot Joints:
DCYS can help solve some problems in robotics for monitoring the force status of robot joints by providing high-quality fiber grating sensors and solutions.
Other Points Need to Be Clarified:
In conclusion, fiber grating sensing technology provides a promising solution for monitoring the force status on robot joints in the field of robotics. By utilizing the unique properties of fiber Bragg gratings, it is possible to accurately measure the deformation of robot joint structures under various conditions. The ability to monitor the force status of robot joints can not only improve the overall performance of robotic systems but also enhance their safety and reliability. Although there are still some challenges in implementing fiber grating sensing technology in robotics, the potential benefits it offers make it a worthwhile investment for the development of advanced robot systems. As a professional manufacturer of fiber grating sensors and related solutions, Beijing Dacheng Yongsheng Technology Co., Ltd. is well-positioned to support the integration of fiber grating sensing technology into various applications in the field of robotics. With ongoing innovation and advancements, the future of fiber grating sensing technology in robotics looks promising.