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

Photocell actinometer digital sensor

A technology of digital sensors and photocells, applied in photoelectric measurement sensors, bus transmission, and electronic control fields, can solve the problems of measuring insolation, large temperature drift of photocells, spectral sensitivity, etc., and achieve the effect of meeting the requirements of insolation measurement

Active Publication Date: 2016-02-24
NAT INST OF NATURAL HAZARDS MINISTRY OF EMERGENCY MANAGEMENT OF CHINA
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, photocells drift greatly with temperature, and photocells of different materials are sensitive to different spectra, so it is impossible to measure the insolation of the full spectrum

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
  • Photocell actinometer digital sensor
  • Photocell actinometer digital sensor
  • Photocell actinometer digital sensor

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0013] Photocell pyranometer digital sensor of the present invention, its preferred embodiment is:

[0014] Including a variety of photocell sensors, AD chips, digital thermometers, MCU single-chip microcomputers, and RS485 bus chips. The photocell sensors are connected to the AD chips through a current-voltage conversion circuit. connect.

[0015] The various photocell sensors include selenium photocell sensors, silicon photocell sensors, and germanium photocell sensors.

[0016] The multiple photocell sensors transmit their short-circuit current electrical signals to the AD chip;

[0017] The MCU single-chip microcomputer controls the AD chip to collect current signals, and simultaneously reads the temperature value output by the digital thermometer and performs temperature compensation;

[0018] The MCU single-chip microcomputer obtains the insolation value according to the weighted summation of the output values ​​of the various photocell sensors, and performs bus data t...

specific Embodiment

[0021] figure 1 It is the temperature characteristic curve of the silicon photovoltaic cell. figure 2 It is the spectral characteristic curve of silicon photovoltaic cell, germanium photovoltaic cell and selenium photovoltaic cell. Depend on figure 2 It can be seen that the incident wavelengths corresponding to the maximum sensitivity peaks of photocells of different materials are different. The spectral response peak of silicon photocells is around 0.8 μm, with a wavelength range of 0.4 to 1.2 μm, and the spectral response peak of selenium photocells is around 0.5 μm, with a wavelength range of 0.38 to 0.75 μm. .

[0022] Such as image 3 As shown, in order to try to overcome the defects of large temperature drift of photocells and the inability to feel the full spectrum of sunlight, a temperature sensor 6 is added to the measurement system to perform temperature compensation for the measurement, and multiple different types of silicon 1, selenium 2, and germanium 3 are ...

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 a photocell actinometer digital sensor which comprises a photocell sensor made of selenium, silicon, germanium and the like, an AD chip, a digital thermometer, an MCU singlechip and an RS485 bus chip, wherein the photocell sensors are connected with the AD chip by virtue of a current-voltage conversion circuit; and the MCU singlechip is respectively connected with the AD chip, the digital thermometer and the RS485 bus chip. The photocell made of multiple materials such as selenium, silicon and germanium is simultaneously connected to a microcontroller system, complete spectrum solar insolation is calculated according to response of different spectrums on the photocell made of multiple materials, the microcontroller is combined with a bus system, the photocell actinometer digital sensor has the characteristics of digital output, bus control, intelligent acquisition and the like and can be conveniently connected to various automatic program control systems, and the requirements of different industrial control environments and agriculture control on measurement of solar insolation are met.

Description

technical field [0001] The invention relates to a photoelectric measuring sensor, electronic control and bus transmission technology, in particular to a photoelectric pyranometer digital sensor. Background technique [0002] Insolation measurement plays an important role in agricultural production, meteorology and space technology research. Traditional high-precision pyranometers use two metal plates with high absorptivity as receivers. One receives sunlight; the other is shielded and equipped with an electric heating device. A thermocouple is placed on each sheet to measure the temperature of the metal sheet. When the temperature difference between the two is zero, the power of the shielding sheet heating current is the amount of solar radiation received per unit time. Most of its receivers are black and white or black disc-shaped thermopiles placed horizontally, and are protected by a hemispherical glass shell to prevent external interference, and at the same time form a...

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): G01J1/42
CPCG01J1/42G01J2001/4285
Inventor 熊玉珍陈征喻建军董云开李涛吴立恒李宏
Owner NAT INST OF NATURAL HAZARDS MINISTRY OF EMERGENCY MANAGEMENT OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com