Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

APD module used in DTS distributed temperature measurement system

A distributed and drive module technology, applied in control/regulation systems, thermometers, temperature control, etc., can solve problems such as cumbersome process, unfavorable productization, and high APD module price

Pending Publication Date: 2021-05-18
WUXI KEY SENSOR PHOTONICS TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above is the solution of the traditional APD module, which needs to test the Vbr of each APD optical device at different temperatures. reason

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • APD module used in DTS distributed temperature measurement system
  • APD module used in DTS distributed temperature measurement system
  • APD module used in DTS distributed temperature measurement system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] The APD module used in the DTS distributed temperature measurement system of the present invention is such as Figure 4 As shown, it includes an APD optical device, a TEC drive module, a temperature sensor and a semiconductor refrigeration chip. The temperature sensor is used to measure the temperature of the APD optical device in real time, and feed back the temperature to the TEC drive module, according to the difference between the target temperature and the actual temperature. value, the TEC drive module controls the semiconductor refrigeration chip APD optical device to heat or cool.

[0019] The TEC drive module includes a PID unit, an MCU control module and a PWM output control module, the PWM output control module and a semiconductor refrigeration chip. The temperature sensor is a thermistor, which is connected with the MCU c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an APD module used in a DTS distributed temperature measurement system. The APD module comprises an APD optical device, a TEC driving module, a temperature sensor and a semiconductor chilling plate. The temperature sensor is used for measuring the temperature of the APD optical device in real time and feeding back the temperature to the TEC driving module, and according to the difference value between the target temperature and the actual temperature, the TEC driving module controls the semiconductor chilling plate APD optical device to heat or refrigerate. The ambient temperature of the APD optical device is always 25 DEG C, so that the Vbr of the APD optical device at different temperatures does not need to be tested, and a special single-chip microcomputer program does not need to be written.

Description

technical field [0001] The invention relates to the technical field of optical fiber detection, in particular to an APD module used in a DTS distributed temperature measurement system. Background technique [0002] In the field of optical fiber sensing, DTS, the distributed optical fiber temperature measurement system, is the earliest and most mature product, which is maturely used in the field of thermal pipeline leak detection. On the entire construction site, only one optical cable needs to be laid along the heat pipe (no power supply required), and then the optical cable is connected to the DTS equipment in the monitoring room. In this way, managers can check the temperature of the entire optical cable in the monitoring room, and determine whether the pipeline leaks and the location of the leak according to the temperature. Moreover, by configuring DTS equipment, real-time information can also be transmitted to the cloud, so that the relevant personnel with authority ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01K11/00G05D23/24
CPCG01K11/00G05D23/24
Inventor 王一川郑利军
Owner WUXI KEY SENSOR PHOTONICS TECH
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com