IDP6420 distributed optical fiber strain tester can measure strain distribution, loss distribution and Brillouin scattering spectrum at different location of optical fiber simultaneously, and can display 3D traces and multiple distribution parameters. It has the advantages of high strain measurement accuracy, good measurement repeatability, non-destructive measurement via one end, and it has become the indispensable instrument in the field of optical fiber communication and optical fiber sensor (OFS).
IDP6420 is used widely in the fields of health monitoring of bridge building, dam, tunnel, lofty building, oil well platform and oil pipeline, and also in the fields of forecasting of geological hazard, such as mountain landslide, mud-rock flow and earthquake, and the fields of the intelligent structure monitoring of seaborne naval vessels and aviation aerospace.
IDP6420 is also used to measuring the strain distribution of optical fiber loop or subsea optical cable in process of development, production and maintaining of fiber-optic gyroscope (OFG), optical fiber hydrophone and subsea optical cable.
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● Nondestructive measurement through single-end
● Distribution measurement of Brillouin scattering spectrum width
● Distribution measurement of optical fiber strain
● Distribution measurement of optical fiber loss
● Measurement of Brillouin scattering spectrum
● Display multiple distribution traces simultaneously
● 3D display of loss distribution
● Large screen color LCD display, touch screen operation
● Built-in visual fault locator
● System software on-line updating, no need to return to factory
Optical fiber type
Maximum dynamic range
Strain distance resolution
±(0.2+2*sample resolution+2*10-5*measurement distance)(m)
Strain measurement accuracy
Strain measurement repeatability
Strain measurement range
Average time setting
Refractive index setting
Measurement frequency span
Measurement frequency range
10.4-inch TFT,1024*768 resolution
Simplified Chinese /English
FC/APC(conveniently replaced by SC or ST connector)
AC power:100 ~ 242VAC(1.5A),50/60Hz
Maximum power dissipation
Humidity:5%-90%, no condensation
1. Pulse width 200ns, average times 216, frequency sweep range 200MHz, frequency sweep span 5MHz;
2. Average times 216,frequency sweep range 200MHz, frequency sweep span 5MHz.
Product certificate of conformity
USB interface mouse
optical transfer jumper(FC/APC to FC/UPC)
a. Experiment of repeatability of strain measurement
Optical fiber strain due to the stretching can be found obviously at the location of0.3157km, and the strain is about 4992.6με .
The right figure shows the successive 10 times strain measurementresults using IDP6420, from which we can conclude the repeatability of strain measured by IDP6420 is excellent.
b. Distributed strain of optical fiber ring In the process of developing and producing of FOG, IDP6421BOTDR can be used to measuring the distributed strain of optical fiber ring of FOG.
c. The calibration experiment of the temperature coefficient of optical fiber under test
The relation curve between Brillouin frequence shift and Temperature:
The optical fiber under test was G.652 SM. In the upper figures, the left figure shows the measurement trace of temperature range from 30℃ to 50℃with the span of 1℃, and the right figure shows the trace of temperature range from 50℃ to 90℃ with the span of 1℃(below 50℃) and 5℃(over 50℃). According to the left figure, it can be found out the temperature resolution of AV6419 can be 0.5℃ actually.