SGTR FBG INTERROGATOR

Desktop Interrogator for Channel Multiplexed Strain & Temperature Sensing

SGTR FBG Interrogator: Overview

SGTR FBG Interrogator – Full solid state, multi-channel, fiber sensing versatility, fitting into a miniature turnkey solution.

The SGTR FBG Desktop Interrogator demonstrates great versatility, providing channel multiplexing up to 8 channels with 8 sensors per fiber, high-resolution sensing, high sampling speeds per channel and programmable multiplexing profiles.

SGTR FBG Interrogator Description

The SGTR demonstrates great versatility, providing fast channel multiplexing, high resolution sensing and high sampling speeds per channel. With its unique set of features, its reduced size, weight, and power specifications, the SGTR provides an excellent FBG interrogator solution.

The standard USB interface is supported by operating systems as Windows, MacOS, Linux and
Android. The SGTR supports great application versatility through many markets.

With its small dimensions, low weight, and low power consumption, the SGTR is by far the smallest footprint multi-channel FBG interrogator currently available.

SGTR FBG INTERROGATOR: FEATURES

8 Optical Channels
8 FBG sensors per channel
Up to 19.2kHz sampling speed
1515 – 1585nm wavelength range
USB 2.0

SGTR FBG INTERROGATOR: BENEFITS

SGTR FBG Interrogator System’s benefits are:

Suitable for sensing applications in all markets.
Small size, low weight, and low power consumption.

SGTR FBG INTERROGATOR: SPECIFICATIONS

PROPERTY	SPECIFICATION
Performance properties
Number of optical channels	8
Max number of FBG per channel	8
Channel sampling type	Sequential or continuous
Sampling rate	1kHz, 5kHz, 10kHz, default at 19.23kHz
Wavelength measurement range A	1516 nm ... 1583 nm
Wavelength output resolution	< 1 pm/bit, ≈ 0.275 pm/bit typical
Wavelength repeatability B	< 5 pm nominal
Wavelength precision	σ < 2 pm (over 1000 samples at 19.23 kHz)
Power consumption
Communication properties
Data protocol, Communication Interface	USB2.0, USB-B
Data timestamp	Internal free running clock
Data storage format	CSV
Output data rate (max)	6,461,280 bits per second @19.230kHz sample rate
Output data unit B	Centre of Gravity value
Optical connector	FC/APC, SMF
Physical properties
Dimensions C	110 mm x 130 mm x 47 mm
Weight	540 grams
Power input (DC) E	9VDC...36VDC
Power adapter input (AC)	80 VAC ... 264 VAC (47Hz – 63Hz)
Environmental properties
Operating temperature range	0°C ... 45°C
Storage temperature range	-20°C ... 75°C
Degree of protection	IP20
Sensor array properties
Max number of FBG per channel	8
Minimum sensor spacing D	5.1 nm

A – Wavelength range guaranteed for all SGTR1002 devices, typical range 1515 nm … 1585 nm.
B – Repeatability defined as the nominal average wavelength drift over a period of 20 minutes, in a steady state environment. Maximum allowed wavelength drift <30pm. Contact PhotonFirst for extensive repeatability and reproducibility information.
C – Including FC/APC connector casings and rubber feet.
D – Typical minimum spacing 4.8 nm. [Refer to FBG definition]
E – Warranty conditions change when another power supply as the one delivered with the product is used