Fizoptika FU40-300-D1ES Fiber Optic Gyroscope Instruction Manual

Fizoptika FU40-300-D1ES Fiber Optic Gyroscope

Specifications

• Product Name: BS-FU40-300-D1ES Fiber Optic Gyroscope
• Weight: 40g
• Operating Temperature: -40°C to +65°C
• Storage Temperature: -55°C to +85°C
• Random Vibration Level: 20g, Frequency Range: 20Hz to 2000Hz
• Scale Factor: 300 LSB/o/s
• Scale Factor Nonlinearity: 0.5 ppm
• 3dB Bandwidth: 400 Hz
• Power Supply: +5V ±0.15V, Power Consumption: 1.5W
• Dimension: 40mm x 20.5mm

Product Usage Instructions

Product Overview:
The BS-FU40-300-D1ES fiber optic gyroscope is an angular rate sensor that integrates optics, mechanics, and electronics based on the Sagnac effect.

Composition:
The product consists of an optical path assembly, detection and control signal circuit board, and optical fiber ring skeleton.

Appearance and Dimension:
The product has a simple structure with a weight of 40g and dimensions of 40mm x 20.5mm.

Operating Instructions:

• Mechanical Interface: Mount the product using the bottom surface with 3 M3 threads for external mechanical connection.
• Power Requirements: Use an external power supply with +5V voltage within the range of 4.85V to 5.15V and a ripple electric current of 20mV at 0.25A.
• Electrical Interface: Connect the gyroscope to external devices using the bonding pad with defined nodes.
• Communication Protocol: Use RS422 serial communication with specific configurations for baud rate, data length, check, start bit, stop bit, data update rate, and packet structure.

FAQ:

• Q: What is the weight of the BS-FU40-300-D1ES Fiber Optic Gyroscope?
  A: The weight of the gyroscope is 40g.

• Q: What is the operating temperature range of the gyroscope?
  A: The operating temperature range is from -40°C to +65°C.

Scope

This document specifies the requirements and methods for the use and maintenance of BS-FU40-300-D1ES micro-nano fiber optic gyroscope (product for short).

References and Standards
GJB1649-1993 ESD Control Program for Electronic Products

Definitions
None.

Product introduction

Product Overview

• BS-FU40-300-D1ES micro-nano fiber optic gyroscope (hereinafter referred to as this product) is an angular rate sensor integrating optics, mechanics and electronics. It is based on the Sagnac effect, integrates a variety of micro-nano fiber devices, and realizes the detection process by detecting, processing and feeding back the phase difference generated by two beams of light propagating in opposite directions.
• This product is mainly composed of optical path components, circuit components and structural components. It has the characteristics of simple structure, no moving parts, no wear parts, fast start, small size, light weight and so on. And can be apply to that attitude control and measurement of the carrier.

Composition
The product is mainly composed of the following components:

• A) an optical path assembly;
• B) Detection and control signal circuit board;
• C) Optical fiber ring skeleton, shell and other structural parts;

Appearance and dimension

The product is cylindrical, with overall dimensions of φ40 mm × 20.5mm, and 3 M3 threads on the bottom are connected to the outside.

Fig. 1 Outline drawing of BS-FU40-300-D1ES micro-nano fiber optic gyroscope

Weight

• ≤40g。

Operating temperature

• -40℃~+65℃。

Storage temperature

• -55℃~+85℃。

Random vibration
Random vibration level: 20g, frequency range: 20Hz ~ 2000Hz.

Main performance parameters
Table 1 Main Performance Parameters

Mechanical and electrical interfaces

Mechanical interface
The bottom surface of the product is the mounting surface, with 3 M3 threads and external mechanical connection.

Power Requirements
The external power supply to the product has two circuits, and the requirements are shown in Table 2:

Table 2 External Power Supply Requirements

Electric

current

|

0.25A

Electrical interface
The BS-FU40-300-D1ES micro-nano fiber optic gyroscope is electrically connected to the outside through the bonding pad, as shown in the figure. See Table 3 for the definition of the bonding pad.

Table 3 Node Definition

Take anti-static measures every time you connect or touch the plug terminal of the product.

Communication protocol
RS422 serial communication

• Baud rate: 921 600
• Data length: 8 bits
• Check: even check
• Start bit: 1b it
• Stop bit: 1 bit
• Data update rate: 2000 Hz
• Each packet contains 10 bytes
• B1, B2 frame header (0x80, 0x80).
• B3 to B6 are gyro outputs, 28 bits in total, represented by 2’s complement, the first bit of each byte is 0, and D27-D21/D20-D14/D13-D7/D6-D0 are stored in B3/B4/B5/B6 bytes respectively.
• B7 and B8 are temperature signals, 14 bits in total, represented by twos complement, and the first bit of each byte is 0. D13-D7/D6-D0 are stored in B7 and B8 respectively.
• Temperature = yard value (0.0625
• B9 reserved bytes.
• B10 checksum, equal to the sum of B3-B9 bytes.

Installation of the product

Installation requirements
The user shall be responsible for the installation and disassembly of the product. During this process, the product shall not be impacted, and the outer surface of the product shall not be machined.

Inspection before installation

• A) Check the appearance of the product for physical damage such as collision;

Inspection after installation

• Check whether each mounting screw is secure.

Product maintenance

• A) Before the product is loaded into the carrier, it is required to electrify the product at least once a year for 3600s, and it is  not required to detect the electrical parameters of the product when electrifying;
• B) After the product is loaded into the carrier, it is required to electrify the product at least once a year for 3600 s, and it is not required to detect the electrical parameters of the product when electrifying;

Common fault phenomena and troubleshooting methods

This product is in a fully sealed state, and cannot be repaired on site after any failure of the user, and needs to be returned to the production unit for maintenance. The following only lists some fault phenomena that may occur other than the product itself, see Table 5. If other technical problems occur during the use of the product, please contact the product manufacturer.

Table 5 Common Faults and Troubleshooting

Serial numb

er

|

Fault symptom

|

Cause analysis

|

Exclusion method

---|---|---|---

1

| When the product is powered on, the current indication of the + 5V ammeter is

basically 0

| The product is not supplied with power or the power

supply current is too small

| Check the power supply and power supply circuit, and restore

the power supply of the product

2

| When the product is powered on, the current indication of the + 5V ammeter is normal,  but  the  computer  acquisition

program does not work.

|

Abnormal          acquisition system of test equipment

|

Check the connection cable and equipment power supply

---|---|---|---

3

|

The product is powered on, and the current indication of the + 5V ammeter is abnormal

| There may be a short circuit  inside  the  test

equipment

|

Check the test equipment

Transportation and storage requirements of products

Transportation precautions

• A) Place the product in the direction shown in the packing box;
• B) When the temperature range is -40 ℃ ~ + 65 ℃, it is allowed to transport by road, railway, air and water;
• C) Ensure that the packing case is fastened to the carrier and will not move during transportation.

Storage precautions

• A) The products placed in the packing box shall be stored in the air-conditioned warehouse under the standard atmospheric pressure, and the ambient temperature is 15 ℃ ~ 35 ℃;
• B) The storage life of the product is 15 years.

Unpacking and inspection

Unpacking inspection

• A) Check the appearance of the packing case for physical damage such as collision;
• B) Electrostatic protection shall be carried out when the product is taken out.

Inspection of supporting delivery documents

• A) Product certificate;
• B) Acceptance report of BS-FU40-300-D1ES micro-nano fiber optic gyroscope;
• C) Instructions for use and maintenance of BS-FU40-300-D1ES micro-nano fiber optic gyroscope (one copy for each batch).

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