Heng Ode text for your analytical density meter
Heng Ode text for your analytical density meter
Definition: The density meter, also known as the density meter, is a combination of a weighing system, a calculation software program for density, and accessories for density measurement. The Archimedes principle can be used to easily and quickly perform equipment for testing solids and liquid densities.
General: To determine the density of a substance, the buoyancy method or the underwater displacement method and the pycnometer method can be applied according to the Archimedes principle. When the object is completely submerged by the liquid, the volume of the object is required to be equal to the volume of the replacement liquid.
Densitometer classification
Densitometers can be divided into benchtop densitometers and portable densitometers, depending on the application of the densitometer.
Density meters can be classified into solid density meters, liquid density meters, and gas density meters depending on the type of material being measured.
According to different working principles, the density meter can be classified into static pressure type, vibration type, float type and radioisotope type.
Densitometer application
Based on the hydrostatic weighing method: the density meter can be divided into the following eight items according to the testing field of the material:
Densitometer for testing powder and microparticles.
Solid density meter
Solid density meter
Densitometer for non-absorbent materials and product solids testing. Densitometer for water-absorbent materials and product solids testing. Densitometer for the field of true solution testing. (Clear liquid) A densitometer for the field of dispersion solution testing. (suspension, emulsion) for density meters in the field of medium and high viscosity liquid testing. Densitometer for the field of precious metal purity testing. Densitometer for the field of gold K number testing. Test method classification:
To sort out the above eight test areas, the density meter's test method is nothing more than:
Buoyancy method II, underwater replacement method
Liquid density meter
Liquid density meter
Third, the specific gravity bottle method
Fourth, gamma ball dipping method
Five, saturated water method
Sixth, surface coating method
principle
1. The dual-energy X-ray absorptiometry obtains two kinds of energy, namely low-energy and high-energy photon peaks, through a certain device through an X-ray tube. After the photon peak penetrates the body, the scanning system sends the received signal to a computer for data processing to obtain the bone mineral content. The instrument can measure the bone volume of any part of the body, with high precision and less harm to the human body. The radiation dose of one part is equal to 1/30 of a chest radiograph and 1% of QCT. There is no problem of radioactive source decay, which has been gradually carried out in major cities in China, and the prospects are promising.
The measured data is accurate and provides a basis for patient treatment at home and abroad. The scanning method is different, the test time is different, the pen beam scanning mode is slower, the cone scanning mode is faster, and the test time is generally A part can vary from a few seconds to a few minutes.
2. Ultrasound bone density meter
Because of its sensitivity to radiation-free and diagnostic fractures, the use of acoustic conduction velocity (SOS) and amplitude attenuation (BUA) can reflect the bone mineral content and bone structure and bone strength, and has a good correlation with DEXA. The method is simple, safe, and inexpensive, and the instrument used is an ultrasonic bone densitometer.
It is mainly used for the bone density census of various people. The test time is generally in a range of 10 seconds to 1 minute. In terms of price, the ultrasound is cheaper, and the dual-energy X-ray bone density is more expensive.
Characteristics
1, measuring the forearm, calcaneus
- Presenting high correctness and reproducibility
—— Very short inspection time (5 seconds)
—— Optional child growth forecasting software
2, innovative digital X-ray technology, automatic measurement of the region of interest, automatic analysis of patient test sites, providing repeated detection, with very high precision and accuracy.
3, high precision and accuracy, accurate bone density measurement speed is only 5 seconds, 50 times faster than ordinary bone density
4, multi-point measurement method - can measure the forearm's tibia and ulna
5, using the most advanced digital image and X-ray cone imaging technology
6. In line with the latest guidelines of the International Society for Clinical Bone Density Measurement (ISCD)
7. Adopting the bone density assessment standard established by the International Health Organization (WHO)
8, the calculation unit uses g / cm2, bone density gold standard
9, portable operation, fracture risk prediction
10, ultra-low radiation dose, provide more assurance for medical care and patients
11, can extend children's bone density, predict children's height
12. Low radiation dose:
According to the UK regulations, the amount of radiation received by any part of the staff should be less than 150,000 uSv/year.
National security requirements: less than 500,000uSv/year
According to the radiation dose test result is 0.01mGy / h (= 10uGy / h)
After calculation: 10uGy / h × 6h / day × 260 days / year = 15,600 uGy / year
Conclusion: Fully in line with national and UK safety requirements.
13. Safety and security: no special room and special protection are required, no radio technicians are required to operate;
The company's main stainless steel water collector, tank bottom weld vacuum test box, reading instrument, eight-stage air microbial sampler, relay comprehensive tester, dual-wavelength scanner, coating thickness gauge, soil mill, tempered glass surface Flatness tester, sound sensor, portable electric water level gauge, network mouth flow meter, corrosion rate meter, portable scratch tester, freezing point tester, water quality tester, online ammonia tester, coating thickness gauge, coating Thickness gauge, soil pulverizer, digital thermometer, gas sampling pump, ceramic impact tester, automatic crystallization point tester, drug freezing point tester, reed switch tester, constant temperature water bath, gasoline root turn, gas Sampling pump, tempered glass tester, water quality tester, PM2.5 tester, inhalable particulate matter detector, high frequency heat sealing machine, strain control triaxial instrument, milk somatic cell detector, helium gas concentration detector, soil moisture conductance Rate tester, field strength meter, collection box, color ratio tester, capillary water absorption time measuring instrument, redox potentiometer vibrometer, carbon monoxide carbon dioxide detection , CO2 analyzer, oscillopolarograph, slime content tester, car starter power supply, automatic potentiometric titrator, portable thermometer, zirconia analyzer, reed switch tester, precision conductivity meter, TOC water quality analysis Instrument, microcomputer plasticity tester, wind direction station, automatic spotting instrument, soil oxidation reduction potentiometer, digital thermometer, portable total phosphorus tester, corrosion rate meter, constant temperature water bath, residual chlorine detector, free expansion rate meter , centrifuge cup, concrete saturated vapor pressure device, particle strength tester, Gauss meter, automatic film coating machine, safety valve grinding tool, weather station, kinesthetic orientation instrument, dark adaptation instrument, smell collector, rain gauge, four in one Gas analyzer, emulsion concentration meter, dissolved oxygen meter, temperature measuring instrument, thin layer planking device, temperature recorder, aging meter, noise detector, constant temperature and humidity chamber, split resistivity tester, initial viscosity and holding viscosity Tester, infrared carbon dioxide analyzer, hydrogen lamp, kinesthetic orientation instrument, constant temperature animal operating table, cooling fan, grease acid value detector, viscosity meter, colony counter, Weather station, rain gauge, Kjeldahl nitrogen analyzer, fluorescent whitening agent, the company adhering to the "customer first, forge ahead" business philosophy, adhere to the "customer first" principle to provide our clients with quality services. Welcome patrons!
600W 800W 1500W 2000W 2400W Full body Red Light Therapy panels are most hot selling products in our company.They are widely used for commercial based,such as Gym,Spa,medical center,Sauna room.Also very popular for home use.Red and near infrared light works by stimulating the mitochondria in our cells to produce more energy.When our cells have more energy to function,we look,feel,and perform our best.
Medical Treatment Machine Infrared Light,Infrared Light Therapy Factory Wholesale,660nm 850nm Red Light Therapy Panels
Shenzhen Bonliter Optoelectronic Co., Ltd. , https://www.bonliters.com