High performance mini digital fiber optic gyro, ultra-small size: Φ24.2*50mm, widely used in UAVs, borehole survey, miniature gimbals, robotics, etc.

  • High Performance Mini Digital Fiber Optic Gyro
  • Ultra small size: Φ24.2*50mm
  • Higher Accuracy, Lower Noise and Greater Efficiency
  • Zero Bias Stability ≤ 3 °/h
  • Measuring Range: -500°/s~+500°/s
  • Scale Factor Non-linearity ≤100ppm
  • Bandwidth ≥200Hz
  • Working Temperature: -40~+60ºC

Brief Introduction

FOG25 Digital Fiber Optic Gyroscope enjoys the smallest size (Φ24.2*50mm), which features short startup time, light weight, wide bandwidth, low power consumption, competitive price and excellent magnetic shielding advantages. FOG25 Fiber Optic Gyroscope adopts advanced integrated optics and closed-loop Digital Signal Processing (DSP), which has been widely used in UAVs, Borehole Survey, Miniature Gimbals, Robotics, etc.


Technical Specifications

NameValueFiber Optic Gyro Value

Fiber Optic Gyro System Performance
Zero Bias Stability ≤3°/h (10 smoothing,  1σ)
Zero Bias Repeatability ≤3°/h (10 smoothing,  1σ)
Bandwidth ≥200Hz
Startup Time ≤5s (from power on to output data)
Measuring Range  -500°/s~+500°/s
Scale Factor (50000±50)sp/°/s
Scale Factor  Non-linearity ≤100ppm
Threshold Value /Resolution ≤2°/h
Communication Interface RS422
Data Refreshing Frequency 400Hz (default)
Physical Specs
Demension Φ24.2*50mm
Weight 200g
Power Supply Voltage  +5.0V±0.05V,-5.0V±0.15V
Working Temperature  -40~+60℃
Storage Temperature  -55~+85℃

Typical Application

FOG25 Fiber Optic Gyro features miniature thumb-sized design combined with high accuracy, super reliability, fast start-up and low power consumption. And it is features miniature thumb-sized design combined with instant start-up and low power consumption. It is easy to be integrated into different systems, it is very suitable for industrial applications, which has been widely applied in the following fields:


–Borehole Survey

–Miniature Gimbals


FOG25 fiber optic gyro has been widely used in UAVs

Industrial UAVs are widely applied in power inspection, smart agriculture and precise camera carrier, which require relative high accuracy and affordable navigation system. The fiber optic gyro is solid state and has obviously hardly any signs of wear, it has a high reliability and a forceful, robust design, it can be used in UAVs and helicopters.

SkyMEMS is dedicated in the design and manufacture of fiber optic gyro systems, and its fiber gyros adopt closed-loop structure, enjoy high performance and stability, FOG25 is the one of the smallest fiber optic gyro with competitive price, it has been widely used in different types of unmanned aircraft vehicles..

FOG25 fiber optic gyro has been widely used in Borehole Survey

Borehole surveying has a long history of mainly steady development due largely to the demands of the upstream oil and gas industry. The borehole survey system can utilize the cable length signal aiding fiber optic gyroscope system. And because of fiber optic gyroscope’s excellent capabilities of long life time, ruggedness, compactness, low cost and high environment insensitivity, and FOG will not have any error in magnetic fields, and it is able to have more accuracy than MEMS gyro, so fiber optic gyros are widely used in borehole survey.

SkyMEMS FOG25 fiber optic gyro enjoys ultra-miniature size with good accuracy, which have been widely integrated into small borehole surveying system.

FOG25 fiber optic gyro has been widely used in miniature gimbals

SkyMEMS fiber optic gyro sensors provide precision motion and orientation measurement in rugged, compact casing. FOG25 FOG sensor is an idea solution for miniature gimbals and image stabilization.

Product Advantages

Why Selecting FOG25 fiber optic gyro?

FOG25 fiber optic gyro is a ultra-miniature FOG module (size: Φ24.2*50mm) with good accuracy (Zero Bias Stability ≤ 3 °/h, 1σ), cause its compact size and competitive price, which is easy to be integrated into different systems, it has the main following advantages:

  1. High Accuracy, High Performance and Powerful Functions

FOG25 fiber optic gyro is one of the smallest miniature fiber optic gyros, which is designed and produced by SkyMEMS, it enjoys excellent technical advantages:

– Ultra small size: Φ24.2*50mm

– Zero Bias Stability ≤ 3 °/h

– Measuring Range: -500°/s~+500°/s

– Scale Factor Non-linearity ≤100ppm

– Bandwidth ≥200Hz

– Working Temperature: -40~+60ºC

FOG25 fiber optic gyro adopts big brand components, advanced production craft, fully calibrated, advanced SkyMEMS algorithm, which assured that our products have real actual precise and perfect performance.

  1. Aerospace Level Reliability, 12-step Strictest Quality Control

We have advanced product test team and measurement equipment, and we cherish the quality as the life of the company, all our products must pass the strictest quality control procedures, our unique 12-step quality control assures our products enjoy top level quality.

  1. Competitive Price, ODM supported

With strict cost control and massive production, we can provide the most competitive cost effective prices, and we have abundant ODM service experience for customers around the world, the customer-oriented service  includes providing special specification parameters, size, shape, interface, etc. which make it convenient for customers to optimize their system performance,   that is why we can build up long term win-win cooperation with our customers.

  1. Successful Applications in 10+ Fields, 100+ Customers are Using

We are continuously focusing on inertial technologies, fiber optic gyros is one of our important products, we have developed the most advanced and reliable fiber optic gyro series. and FOG25 optic gyro is a tiny thumb-sized FOG sensor with middle-low accuracy, which has been widely used in industrial applications, such as UAVs, borehole survey, miniature gimbals, and robotics, etc. and now more than 100 customers are using our fiber optic gyros around the world.

  1. World-class Production Line, Fast Delivery

We have the world class production line to assure that the production procedures are scientific, precise and normative, which also can assure our products to be fast delivered.

  1. Service with Heart, Professional Technical Support

We have the professional technical support engineer team, which can provide 24-hour technical support and excellent after-sale service.

Serving customers with heart is the principle of SkyMEMS, Customer demand is the fundamental driving force of our development.

We treat our customers with heart, customers’ satisfaction is the direction and  target of SkyMEMS. Through continuously technology innovation and service upgrading, we will realize win-win cooperation with customers.


Q: What preparation work should do when testing our fiber optic module?

A: During tests and using, it is better to add one metal base or heat dissipation

Power supply: it is better to use laboratory power supply (which can display the current) during tests, then can judge the module’s status easily, when integrating the module into the system, DCDC power module can be selected, and the DCDC module select the one that has filter, if the dcdc module doesn’t have the filter, then please add one filter.

When use laptop or PC to collect the data from our fiber optic module, please select the right data collecting card, the data collecting card should has photoelectric isolation ability. For more details, please contact with our sales.

Q: What data type of the SkyMEMS fiber optic gyro?

A: it is integer data, this raw data divide by scale factor, the result is the angular rate (degree/s). the scale factor will be provided in the test report, every fiber optic gyro’s scale factor is different.

Q: Whether the fiber optic gyro lose data when outputting data at higher frequency?

A: please let us know what frequency you will use in your application, according to the frequency, and select the right baud rate, the fiber optic gyro will not lose data, and we also can provide solution based on your actual applications.

Q: How to calculate the temperature?

A: the actual temperature is the temperature data outputted by FOG divide by 16.

Q: Whether each FOG’s scale factor is different?

A: yes, right. Each FOG’s scale factor is different, but it is close for standard model, for the ODM FOG, the scale factor will change much.

Q: whether the connector and cable length can be selected?

A: yes, no problem, please let us know the connector type and cable length you want, then we can do it, and also different color cable can be selected.

Q: How about the delivery time?

A: for our standard model, if we have them in stock, only need 2~3days to re-test before shipping, if it is out of stock, then need around 2 weeks to arrange the production and tests. For the ODM FOG product, if needing to modify the structure, it will need around 3 weeks to arrange the production and tests.

Q: How to arrange the payment?

A: about the payment, please pay to our company account, the beneficiary’s name: NANJING SKY MEMS TECHNOLOGY CO., LTD.  And our email is only to contact with u formally. To notice this to avoid the loss.