ASTM has published method D8192 describing the determination of water hardness by automatic photometric titration in domestic and industrial water samples. The new standard method uses a photometric sensor to detect the titration endpoint with superior reliability. Along with a digital titrator, this provides for always accurate and reproducible results, even in colored ...
The definition of data information by the sender and the receiver needs to follow a common standard. Compared with the CAN bus underlying protocol, which includes the physical layer and the data link layer, CANopen is a high-level protocol including five layers: the network layer, the transport layer, the session layer, the presentation layer, and the application layer....
Dust extraction systems: functionality and applications Dust extraction is a necessary process in many manufacturing companies, especially for the medium and large sized ones that produce, through various processes, a huge amount of dry dust and derived from sanding. Why is the dust extraction process useful, even if not harmful? The answer is simple and takes into con...
I. What is LCD? Quote from Wikipedia “A liquid-crystal display (LCD) is a flat-panel display or another electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly, instead using a backlight or reflector to produce images in color or monochrome.” There are seve...
At Premium PSU, we work with a wide range of communication protocols in order to cover different needs of our customers and improve the lifetime of our solutions. Check this video to guide you in the configuration and parameter monitoring via RS-232 of Premium PSU’s 3ph DC/AC inverters. We used the ODX-3000with 24Vdc Input as an example.
Companies often hesitate between different equipment when choosing sludge thickening equipment, so this article compares two of the most popular sludge dewatering equipment - Decanter centrifuge and Filter Press - on the market for companies to choose from. Sludge Thickening Sludge thickening is a process in which the solids concentration is increased and the total sl...
The aluminum enclosure has high compressive strength and is not easy to be damaged, so that the safety of internal devices and circuit boards is reliably guaranteed, and it is convenient for storage, transportation and use. The processing performance of aluminum enclosure is excellent. Yongu’s processing technology is mature, and the CNC high-precision machining of the ...
Waterproof boxes for electronics are important tools for many industries and professions. Today we'll discuss how an electronic waterproof case can be your best friend, keeping your device safe from rain and other natural disasters! IP68 enclosure is one of the most popular electronics waterproof case. This product has a water resistance rating of 68, which means it can...
The Outdoor World Is Full Of Unexpected Dangers And Water Is One Of Them. To Avoid Having To Deal With These Hazards, Make Sure That You Know How To Make Outdoor Weatherproof Enclosure. Introduction: Waterproof Electrical Boxes Outdoor Are One Of The Best Things You Can Do To Protect Your Home From Water Damage. However, With The Popularity Of Outdoor Living, It Seems ...
What is cloud computing? A simplified definition of cloud computing is computing power provided as an online service. Depending on requirements, hardware (Infrastructure as a Service, IaaS), a platform (Platform as a Service, PaaS) or directly pre-configured software (Software as a Service, SaaS) can be rented from a cloud service provider. These solutions are particular...
Our new Labview user interface built with MQTT framework helps our users to accelerate their development with our WIFI Sensors. All the measurement mode ( Streaming , Low Duty Cycle, Alarm) are available with Labview, source codes are accessible, free of cost and fully documented.
linear motion design Linear motion is an area of motion control encompassing several technologies including linear motors, linear actuators, and linear rolling guides and bearings, among others. Linear motors — an accurate option Traditional linear motors are basically a permanent magnet rotary motor rolled out and laid flat. It’s as if the stator and rotor were cut...
The value of natural cosmetic products depends on the quality of the ingredients. Among the basic ingredients of many natural cosmetic products are high quality oils derived from oil seeds or nuts. A free white paper investigates how a parameter called «induction time» can be used to check the stability (resistance to oxidation) of such high quality natural oils. This he...
Poorly soluble, viscous and often highly contaminated– determining the water content in lubricants, hydraulic oils, and other petrochemical samples can be a messy business. Addressing these challenges, ASTM has revised standard method D6304. The revised standard now includes the Karl Fischer oven technique. This technique enables users to conveniently and accurately dete...
What is dissolved oxygen (DO)? Why is this parameter so relevant, e.g., for water analysis, and which technologies are used to determine it? In a free white paper, Dr. Sabrina Gschwind, Junior Product Manager Titration at Metrohm AG takes a comprehensive look at dissolved oxygen and compares the advantages and disadvantages of the methods commonly used to determine this ...
With the rapid development of enterprise informatization, the demand for servers is also increasing. In the limited space of the computer room, how to plan and implement reasonably, for us, we must pay attention to these problems. Because of the flexible configuration and high computing density, rack-mounted servers have advantages over tower servers in terms of saving e...
Many of the same issues keep coming up, in one form or another. So, we have decided to put together a whitepaper that addresses the most common requests for information and explanation. This is particularly topical because there is a lot of confusion resulting from recent changes in key international standards. The whitepaper starts by explaining what is meant by sol...
We have been designing adequate pulsation dampeners for all uses since 1974, improving them in a continuous effort to meet our customer’s requirements. These are some of the reasons to use our products: ■ We make pulsation dampeners to suppress high frequency pulses (up to 50 Hz, tested by our customers), eliminating all kinds of noise. ■ We make effective and t...
What is an Off Load Tap changer? Tap changers are devices used in order to maintain a constant voltage in a transformer or to maintain within the prescribed limits. An Off-load tap changer allows regulation of output voltage and through changes of taps in the transformer thanks to a control head. As the name suggest this type of changer requires that no load is connect...
What Is The Difference Between A Hydraulic Bolt Tensioner And A Hydraulic Wrench? Hydraulic tensioners and hydraulic wrenches are both important tools for pre- tightening and disassembling bolts. They are widely used in construction, maintenance, and emergency repairs in shipping, petrochemical, construction, electric power, mining, metallurgy and other industries. They ...
Earthing is a fundamental step in any electrical system installation. Its proper installation also depends on the proper functioning and safety of equipment and people, as it protects against potential differences that can be dangerous in both cases. Why it is so vital, how to set up a project correctly and what regulations must be followed to install the earthing system...
Motors produce torque and rotation through the interaction of magnetic fields in the rotor and the stator. In an ideal motor — with mechanical components that are perfectly machined and assembled and electrical fields that build and decay instantaneously — torque output would be perfectly smooth, with no variations. But in the real world, there are a variety of factors t...
Speaking of aluminum alloys, everyone is not unfamiliar, and it can be seen everywhere in life; but aluminum enclosure may be heard less often, so what are aluminum alloy case? Today we will talk about it. What's Aluminum alloy Aluminum alloy is an alloy based on aluminum with a certain amount of other alloying elements added. It is one of the light metal materials. In ...
If you’re building a rack mount server, there are SO MANY options… and it can be very difficult to decide which case is right for you. This guide will help you sort through all the choices and make a decision that is going to be right for your needs… and give your budget a much-needed boost. Your aluminum case is one of the most important parts of your server. It protec...
Backlash: The enemy of linear systems Backlash is caused by clearance, or play, between mating parts, which introduces a dead band when the direction of travel is reversed. In the dead band, no movement occurs until the clearance between mating parts is eliminated. Components that typically experience backlash include ball screws, lead screws, belt and pulley systems, ...
Electrical hazards can cause electrification (or electrocution) as well as burns with serious injuries or even amputations. Working on electrical installations exposes you to the risk of an electric arc. The thermal impact of an arc depends not only on the voltage level (LV/HV) but also on the incident electrical energy (cal/cm²). Effective and appropriate personal prote...
The presence of uncontrolled quantities of air in water systems can seriously affect their performance, causing inefficient filling and draining procedures and flow reduction, while increasing energy costs. It also disrupts the operation of some of the system’s components. On the other hand, air is essential in dealing with vacuum conditions and pressure surges. Effecti...
In August of 1933, R.O. Monroe and L.D. Goff, in conjunction with a local mill, designed and built the first rotary joint. It was a device that eliminated the problems associated with stuffing boxes and packing glands and allowed the water or steam to be introduced in a much more economical method
Fiber Collimators of Daheng Optics Facing the ever-increasing market demand, Daheng New Epoch Technology Inc. (“Daheng Optics”) has developed a series of high-precision fiber collimators and fiber couplers of enhanced collimation performance, filling the blank of integrated coupling lenses in earlier days. Here is a brief introduction of the products. GCX-L series tripl...
<< Comprehensive surface topography of both surface flatness and roughness without contact with TopMap from Polytec >> Conventional machining processes generate three main components of surface topography, which are classified according to their causes. The first component is “roughness and irregularities”, that are inherent in production processes, left by machining (e...
Lithium battery, I think we should be more rigorous. It should be called lithium-ion secondary battery. Li is the smallest diameter and most active metal on the element periodic table. If you are not sure, you can look at the periodic table “Lithium hydrogen helium beryllium boron, carbon nitrogen, oxygen, fluorine and neon…”. Because Li has these characteristics, it is ...
In 2017, the Sewage Association Sebnitz in Eastern Germany replaced an old Strate pumping station with modern machine technology. Using the one-stage Egger Turo® Vortex pump type T 61-80 V2 30 m3/h raw sewage at 76 m each. This Egger vortex hydraulic is optimized for solids with fibres and has an 80 mm free passage. This offers a very high operational reliability. The pu...
After strict preview and final review (total five days), Tianan passed the SA8000 system certification on January 4, 2019. So far, the company has succeeded in obtaining another passport to enter European and American countries.
Scientific methods allow us to understand and quantify our perception of visible light and color. Learn the language of light, including visual definitions of luminance, illuminance, luminous intensity, and luminous flux. Understand the anatomy of the CIE chromaticity diagram, including spectral locus, Planckian locus, dominant wavelength, and purity. Derive color values...
The Stratasys J735 and J750 deliver unrivaled aesthetics to your brightest ideas and boldest ambitions with true, full-color capability, texture mapping and color gradients. 3D print prototypes that look, feel and operate like the finished products in multiple materials and colors without sacrificing time for intricacy and complexity. Better communicate designs with vivi...
The Jablonski diagram is widely used in fluorescence spectroscopy to illustrate the excited states of a molecule and the radiative and non-radiative transitions that can occur between them.
