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191 results about "Test types" patented technology

There are five primary types of drug tests: urine, blood, hair, saliva, and sweat. Most common is the urine test which has the benefit of being inexpensive and less intrusive than the blood test.

Radio frequency automatic test system for wireless communication base station

The invention provides a base-station radio-frequency automatic test system which comprises a radio-frequency analyzer, a network analyzer, a signal source, a power meter, a severer equipped with automatic test software and a radio-frequency unit comprising coaxial radio-frequency switches as well as filters and attenuators of different specifications. The base-station radio-frequency automatic test system is arranged inside a large-size test cabinet. The operation of the system is under the centralized control of a high-performance workstation. The test software is designed to complete various base-station test items specified in the standard according to user's needs. The base-station radio-frequency automatic test system covers the whole range of the test of various radio-frequency parameters of base station of various communication systems, and maximizes the degree of test automation. Additionally, the base-station radio-frequency automatic test system has the advantages of wide coverage, full test types, high automation degree, easy operation, friendly interface, flexible configuration, convenience for updating along with the modification of the standard, automatic correction function, high test accuracy, and capability of networking several scattered labs via a local area network (LAN) and achieving the effect of test data sharing.
Owner:TELECOMM METROLOGY CENT OF MINIST OF IND & INFORMATION TECH

Quantitative evaluation system and method of crude oil emulsion stability

InactiveCN105158212ARapid quantitative demulsification and dehydration effectEase of evaluationScattering properties measurementsParticle size analysisWater bathsEmulsion test
The invention discloses a quantitative evaluation system and method of a crude oil emulsion stability. The system comprises a signal generator, an oscilloscope, a voltage amplifier, a bottle-test type demulsification dehydrator, a constant-temperature water bath, an emulsion test bottle, a kinetic stability analyzer and a computer, wherein the signal generator generates electric signals with a specific waveform, voltage and frequency, signal amplification is performed through the voltage amplifier, and then an asymmetric high-intensity electric field is applied to crude oil emulsion in the bottle-test type demulsification dehydrator to enable water particles therein to produce electrostatic coalescence and further to accelerate gravity settlement; or under the situation that no electric field is applied, a demulsification agent is directly added into the crude oil emulsion in the bottle-test type demulsification dehydrator to perform chemical demulsification; quantitative analysis and evaluation are performed on the demulsification effect by calculating emulsion dehydration rate or by using the kinetic stability analyzer. The evaluation system and method are convenient, quick, accurate and reliable to use, and can provide convenience for evaluation work of the emulsion demulsification effect under various conditions in laboratories and engineering fields.
Owner:BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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