Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Adjusting a Traverse

Adjusting a Traverse

In the site survey of a four-sided traverse, internal angles are essential to ensure geometric accuracy. The survey revealed that the sum of the measured internal angles was 359 degrees and 48 minutes, which is 12 minutes less than the expected 360 degrees. This discrepancy signals an error likely arising from measurement inaccuracies during the fieldwork.To rectify this error, the adjustment process involved distributing the 12-minute shortfall equally across the four internal angles. By...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

CsHB5-CsWRKY22 coordinates chlorophyll degradation and reactive oxygen species homeostasis to control leaf senescence in Camellia sinensis.

Plant physiology and biochemistry : PPB·2026

Same author

Noise-robust, deep learning-enhanced dual-wavelength holography for 3D dynamic monitoring of thermosensitive hydrogel kinetics.

Optics express·2026

Same author

Coupling coordination and driving mechanism between tourism development, ecological conservation and digital economy: insights from Chinese 278 cities.

Scientific reports·2025

Same author

Data correction of temperature and water vapor measurements using the combined lateral scanning Raman scattering lidar and backward Raman scattering lidar.

Optics express·2025

Same author

Radiative transfer modeling and experimental validation of the multiple-scattering lidar signal propagation within the inhomogeneous liquid cloud layer.

Applied optics·2025

Same author

Roll angle measurement method based on a double-sided optical wedge.

Applied optics·2025

Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026

Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026

Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026

Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026

Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026

Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 25, 2025

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

Published on: March 2, 2021

Autocollimation-Based Roll Angle Sensor Using a Modified Right-Angle Prism for Large Range Measurements.

Yan Guo¹, Yu Zhang¹, Jiali Ji¹

¹School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China.

Sensors (Basel, Switzerland)

|February 26, 2025

Summary

This summary is machine-generated.

This study introduces a novel roll angle sensor utilizing autocollimation, overcoming the limitations of traditional autocollimators. The sensor achieves high accuracy over a 360° range, enabling precise roll angle measurements.

Keywords:

autocollimation large range measurements right-angle prism roll angle

More Related Videos

Three-dimensional Optical-resolution Photoacoustic Microscopy

Three-dimensional Optical-resolution Photoacoustic Microscopy

Published on: May 3, 2011

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Published on: December 1, 2023

Related Experiment Videos

Last Updated: May 25, 2025

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

Published on: March 2, 2021

Three-dimensional Optical-resolution Photoacoustic Microscopy

Three-dimensional Optical-resolution Photoacoustic Microscopy

Published on: May 3, 2011

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Published on: December 1, 2023

Area of Science:

Optical metrology
Mechanical engineering
Sensor technology

Background:

Autocollimators are widely used for angle measurement but cannot measure roll angles.
Existing methods for roll angle measurement often have limited ranges or complexity.

Purpose of the Study:

To propose and validate a novel roll angle sensor with a large measuring range.
To leverage the autocollimation principle for accurate roll angle determination.

Main Methods:

A modified right-angle prism (MRP) was employed as a key optical component.
The sensor analyzes the movement of two light spots on a photodetector to calculate the roll angle.
A detailed mathematical model was developed to describe the sensor's operation.

Main Results:

The proposed sensor demonstrated a measuring accuracy of ±13.85 arcsec.
The sensor successfully operated over a full 360° measuring range.
Experimental results confirmed the sensor's feasibility and performance.

Conclusions:

The novel sensor effectively measures roll angles over a large range.
The developed system offers a viable solution for applications requiring precise 360° roll angle measurement.
This technology advances optical metrology for angular sensing.