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Ultraviolet light meter detects the intensity of ultraviolet radiation, and is used to measure the intensity of ultraviolet radiation in the fields of photochemistry, flaw detection, ultraviolet light source, plant cultivation, large-scale integrated circuit lithography, and polymer material aging.

Ultraviolet light is ultraviolet radiation, which is electromagnetic radiation with a wavelength of 100-400nm. It refers to the intensity of ultraviolet radiation per unit area. The instrument commonly used to detect the intensity of ultraviolet radiation is called an ultraviolet radiometer, also called an ultraviolet illuminance meter. Although it is called an illuminance meter, it has nothing to do with illuminance. Illumination studies the visible light that the human eye can see. The ultraviolet light meter measures ultraviolet light, which is invisible to the human eye, so it is related to the irradiance.

Irradiance is called radiant flux density and it is the integral of radiance to the solid angle. The area of the irradiance is integrated to obtain the power of the radiation.

Definition 1: Radiated energy projected onto a unit area per unit time.

Definition 2: The radiant energy received by an object on a unit time and unit surface. The unit is W / m2.

Definition 3: The radiant flux on an infinitely small bin containing the point divides the area of the bin.

Definition 4: Radiated energy projected onto a unit area per unit time. Irradiance (Ee, E) is a physical parameter, which is the amount of radiant energy received per unit area on a given surface. Unit: Watt / square meter.

The wavelengths measured by the UV radiometer are divided into UVA (320nm-380nm), UVB (280nm-320nm), and UVC(200nm-280nm). ShenZhen Xinzhibang UV Radiometer LS125 can detect UVC, UVB, UVA various wavelengths. It is widely used in sterilization, curing, pharmaceutical factory testing, sewage treatment, disease control center, non-destructive testing, welding arc testing, ultraviolet aging experiment testing and other industries.

Shenzhen XZBELEC Inst. & Eqpt. Co., Ltd company is established in 2011, Shenzhen xinzhibang Inst. & Eqpt. Co., Ltd is a professional enterprise of instruments and meters.

Rebar bending machine is one of the necessary equipment for rebar processing. It is mainly used in the bending of rebar in all kinds of construction projects. Portable rebar bending machine is usually used with the cutting machine. Its application is very extensive. With the effect of the national investment, especially the country vigorously develops the high-speed rail, the production and sales of CNC rebar bending machine are increasing rapidly. Similar to other rebar cutting machines, bending hoops and straightening and cutting machines, the production base of this kind of machinery has been formed. Most of the products made in China can meet the needs of users, but the quality of some products cannot meet the requirements of the national standard.

The construction of the machinery industry in China has been developing rapidly in recent years. On the one hand, it is a reason to improve the quality of its own products and the low cost of domestic labor by introducing foreign advanced technology. On the other hand, the implementation of active fiscal policy for many years in the country is the fundamental cause of the growth of the industry.

The structure of rebar bending machine of each manufacturer is basically the same. The transmission scheme of rebar bending machine has the following 2 kinds: "a worm gear with one or two gears and a worm gear drive" and "13 gear transmission". The transmission efficiency of rebar bending machine with worm drive is not as good as the bending machine of the gear transmission. That is to say, the bending machine of the gear transmission is more relaxed with the diameter of the rebar under the same driving motor power condition. But the self-locking characteristic of the worm wheel and worm drive makes the positioning accuracy of the bending in the work much higher. At present, the production and application of rebar bending machine with "one or two grade gear and worm gear drive" are more common and the market share is high.

If you want to buy rebar bending machine,please contact us,we provide rebar bending machine for sale.

Many consumers are confused about the brightness parameters of the mini hd led projector when purchasing a projector. Perhaps in the eyes of laymen, evaluating the brightness of a projector can only be judged by the value. And as people gradually increase their expectations for high brightness and high resolution, many manufacturers will choose to use the concept of stealth to change the parameters in order to attract attention.

However, in fact, there is not an absolute positive relationship between the effect shown on the screen and the number of lumens marked. Not a projector with a higher lumen is better. So what exactly does a projector lumen do? Let's take a look at the mystery of lumens and learn to say no to false parameters.

Generally speaking, the lumen of a projector is divided into several units. There are only two of them in our daily life, one is the brightness of the light source, and the other is ANSI lumens.

The brightness of the light source refers to the "most original light-emitting brightness level" provided by the laser, light bulb, and LED light in the projector. In simple terms, the brightness of the light source is the brightness that has not been cut by the lens or other factors.

Another type, ANSI lumens is the international standard unit of 2500 lumens projector recognized by the world.

ANSI lumens is the brightness after layer after layer of reduction. Use the sun as a metaphor. The sun itself is the brightness of the light source, and the sunlight shining on us is the brightness that the projector projects on the wall after being cut. The brightness projected onto the wall is ANSI lumens.

According to relevant calculations, the light source brightness of 3500 is approximately equal to 1000-1200 ANSI lumens. Therefore, be sure to look for ANSI lumens when choosing a projector.

There may be consumers wondering what is the relationship between the level of lumens and the size and clarity of the picture?

As the brightness of the projector (lumens is the unit of brightness) increases, the picture projected at the same screen size will become brighter. So it looks clearer, but the resolution does not change; the increase in lumen has nothing to do with the screen size, but the brightness will change as the screen size changes. For example, the screen size is larger and the brightness is lower.

According to the size of the indoor space, in the space of 15-30 square meters, 100-800 ANSI lumens is recommended. In the space of 35-50㎡, it is recommended to be between 1500-2000 ANSI lumens. In the space of 60-100㎡, it is recommended to be between 3000-4000 ANSI lumens. In the space of 120-200 square meters, 4000 ANSI lumens or more is recommended. The two are well understood, because the lumen is proportional to the area of the house.

Overview

Based on FTIR technology, FT-2000P portable gas analyzer can continuously monitor various kinds of components in the emission, such as SO2, NOx(NO, NO2),CH4, NH3, HCl, HF, CO, CO2, O2, H2O. According to actual measuring need, it can be extended to measure other components, like SO3, N2O and etc. This portable system mainly comprises FTIR analyzer and sampling probe. It has features of high measurement accuracy, wide dynamic range and low detection limit.

Feature Of FT-2000P Portable FTIR Gas Analyzer

Warming up is no required for the analyzer to realize fast measurement;

Applicable for high humidity and dust occasion;

Optical length up to 13m, extremely low detection limit, high range dynamics, satisfy the monitoring of small emission limit;

By applying OLS and PLS techniques and selecting, interference from H2O or others can be effectively eliminated;

Quick site sampling, analysis and easy operation.

Application Of FT-2000P Portable FTIR Gas Analyzer

Apply to dust and noise online monitoring in construction sites, roads, residential, factory sector, tourism, waste incineration plants and other construction sites and production situations.

Specification Of FT-2000P Portable FTIR Gas Analyzer

Hangzhou Zetian Technology is committed to the integrity, strength and quality of our products. If you want to know more details or want a quotation, just feel free to contact us!

Overview

WDet-5000UVI is the first full-spectrum (200-800nm) immersion UV water analyzer at home. With features of the delicate and convenient structure, plug and play, auto cleaning function, it can be widely applied to measure indexes including COD, BOD, and turbidity in surface water, underground water, and municipal sewage.

Technical Principle Of WDet-5000UVI Immersion UV Water Analyzer

The portable water quality analyser adopts a pulse xenon lamp as the light source and ultraviolet spectrometer as a detector, which can collect the absorption spectrum of water pollution between 200nm and 800nm in real time. The water pollutant content can be analyzed in real time through the chemometrics algorithm technology. The optical path is shown as the following figure.

The spectral probe can record a complete spectrum between 200nm to 800nm (UV-visible light) and distinguish the spectrum into 256 wavelengths to obtain "Spectral fingerprint". It can monitor multiple parameters simultaneously through the information contained in spectral fingerprint and compensate those parameters aiming at possible cross-sensitivity. The relevance between measuring result and laboratory result achieves high quality that simple optical instrument can never obtain before.

Features Of WDet-5000UVI Immersion UV Water Analyzer

Adopt a full spectrum (200-800nm) (UV-visible light) measurement technology and chemometrics algorithm. Compared with dual wavelength background deduction technology, it can measure more parameters and be less affected by composition change of sewage.

Use high-pressure gas to clean probe automatically, or employ immersion electrical brush to clean.

Not required for reagent preparation; save operating cost and no secondary pollution.

Fast response time(about 2s), applied to occasions with high requirements for real-time.

Without interference by chloride.

Technical Specification Of WDet-5000UVI Immersion UV Water Analyzer

Are you looking for air analyzer equipment？

Overview

AM-5100 SO2 air pollution analyzer adopts ultraviolet fluorescence technique and combines advanced micro processing technology, which could provide accurate and reliable SO2 detection at low level ppb~ppm, So we can also call it portable so2 analyzer. This analyzer can be applied to atmospheric monitoring and dilution-based CEMS system.

Features Of AM-5100 SO2 Analyzer

Measurement range 0~500ppb to 0~20ppm, user selectable;

High efficiency hydrocarbon remover and unique optical design, strong anti-interference ability;

Dark current compensation at fixed time, high stability;

Self checking function of light intensity attenuation;

Adaptive signal filtering technology to optimize response time;

Large capacity memory, automatic storage of historical data.

Application Of AM-5100 SO2 Analyzer

Atmospheric monitoring

Specification Of AM-5100 SO2 Analyzer

Features
1. CPU: Octa-core RK3368H. RAM: 1GB/2GB
2. Memory: 8GB/16GB. oS: Android 7.1
3. Display: 7" touchscreen 1920x1200.
4. Camera: 5M pixels. Wi-Fi: 2.4G
5. Bluetooth: BT 4.2
6. Microphone: 2 Mics array
7. Speaker: 4W(1.5")x2+psssive radiatorx1(stereo)
8. I/O: DC-IN/USB/HDMI/SD.
9. Power supply: 12V1.5A. Al: Alexa or Google
10. System: Amazon Alexa or Google

1. Smart Screen good quality portable bluetooth speakers combine leading voice wireless technology, with superior sound performance to create the smartest device possible.
2. Use YouTube, Hulu, Netflix, etc like DirecTV now even stream from the audio store. You can stay connected with family and friends and preserve memories.
3. Play music, see movies, set alarm, check the weather, etc only by your voice. With eight microphones and far-field technology, Alexa can hear you even when music is playing.
4. Easy to install, the holder can enhance stability and protection for your home speaker everywhere you like.
5. Smart home Technology AI Speaker, vertical to the ground.
6. Your new kitchen companion—watch recipe videos, set timers, and alarms, and add items to your shopping list.
7. not only can you stream your favorite music but also your favorite Amazon Prime programming.
8. Ask Alexa to see lyrics and album art with Amazon Music. See weather forecasts, calendars, to-do lists, and your favorite playlists.
9. Make video calls to anyone with Skype, the Alexa app, an Echo Spot, or Echo Show.
10. With eight microphones and far-field technology, Alexa can hear you even when the music is playing.
11. Alexa is always getting smarter. Skills are like apps and let you do more with Alexa.
12. Watch award-winning movies and shows from Prime Video, music videos from Vevo, or live TV and sports with a Hulu subscription.
13. Horizontal or vertical image inversion function options to meet different angles installation mode.

Application scenario:
Home security monitor
Family companion supplies

Features of JH-335 Rechargeable ITE Portable Hearing Aid Hearing Amplifier

1. Mini-size ITE amplifier: mini sized ITE hearing amplifier is the power unit with noise reduction feature, perfect for those who want precise sound amplification, it is so small that others will hardly notice
2. Light and comfortable: the device is extremely light, it can be comfortably worn in either ear It can fit in all sizes of ears
3. Rechargeable mini ITE hearing aid, reusable and eco-friendly, long time service which good for travel.12-14 hours continuous use with a full charge

Precautions of JH-335 Rechargeable ITE Portable Hearing Aid Hearing Amplifier

1. Mini-size amplifier: mini sized ITE portable hearing aid amplifier is the power unit with noise reduction feature, perfect for those who want precise sound amplification, it is so small that others will hardly notice
2. Light and comfortable: the device is extremely light, it can be comfortably worn in either ear It can fit in all sizes of ears.
3. Rechargeable mini ITE hearing aid, reusable and eco-friendly, long time service which good for travel.12-14 hours continuous use with a full charge.
4. Portable hearing aid kit, when you go outside with JH-335, you don't need to worry about the power problem, you can charge by the AA battery if you forget to take the adapter, you also can make sure the hearing aid full of electricity.

Huizhou Jinghao Medical Technology CO., LTD. is the sole listed hearing aids/ hearing amplifier manufacturer in China, be famous for provide good quality and good price hearing aids/hearing amplifier. Jinghao electronics passed BSCI, ISO13485, ISO9001, C-TPAT, SQP ,CVS HEALTH  etc audit ,and all products with CE, RoHS, FDA certificates.