deviceOr calledequipmentThe word has many meanings.deviceIt can be:MechanicsA name for;toolA name for;equipmentA name for;instrumentA name for;Measuring instrument, used to conduct various tests to obtain relevantdataTools;appliances, various tools used in daily life.
MechanicsIs created byMechanical structure（mechanism）Composition,Mechanical structureByMechanical elements（Machine parts）Composition, yesMechanical EngineeringA basic concept of.Machinery is a tool device that can help people save work difficulty or labor.Some machines simply change the magnitude or (and) direction of the force, and are called simple machines.Complex machinery is composed of two or more simple machines.
Machinery is a combination of artificial physical components, and each component must achieve mutual, single and specifiedRigid body motionTo transform the applied energy into the most useful form, or into effective mechanical work.
Machines are mechanisms and machinesGeneric term。Besides the characteristics of mechanism, a machine must also have a third feature: it can replace human labor to complete useful mechanical work or convert mechanical energy, so a machine is a mechanism that can convert mechanical energy or complete useful mechanical work.The machine is a mechanism with a driving device.[1]
tool
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toolorequipment、equipmentIt refers to the equipment that can facilitate people to complete work. Its benefits can be mechanical or intelligent.Most tools are simple machines;For example, an iron bar can be used as a lever. The farther the force point is away from the fulcrum, the greater the force transmitted by the lever.
Philosophers once thought that onlyhuman beingsWill use tools, so willpeopleIt is defined as an animal that knows how to use tools.But observation shows thatchimpanzeeAnd othersanimal, especiallyprimatesAnimals, and somebirds(such as ravens) andsea otterCan use tools.Later, philosophers believed that only humans had the ability to make tools, until zoologists observed that some birds and monkeys could also make tools.grossanthropologistBelieve that the use of tools isHuman evolutionAn important step in history;Humans have developedthumbTo grasp tools, and the progress of intelligence can help human beings use tools properly.Some studies show that the brain regards tools as an extension of the body.
Most tools can be used asarmsFor examplehammer, knife;Similarly, people can alsoexplosiveSuch weapons are used as tools.[2]
equipment
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equipmentUsually, it is a group of medium and large machines and tools, which cannot be operated by hand, but must have a fixed pedestal, use power, etcpowerOperation rather thanhuman resources。
Generally, equipment is placed in exclusive rooms, such as machine rooms, workshops and workshops, because noise or waste gas will be generated during operation, exceptInformation equipmentIn addition to the intangibles of input and output, many equipment need to input and output tangible materials, so it needs a specially designed place to operate smoothly.[3]
Instruments
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instrument(English: Instrument) andmeter(English: Instrumentation) Usually refers to thescienceResearch ortechnologyMeasuring, generally speaking, equipment or devices dedicated to one purpose.Generally speaking, the instrument is complex and composed of multiple parts.Instruments are generally not very large, and can often be operated directly in the hand. Larger instruments are rarely larger than one room (larger ones are generally called devices).Most instruments are used for certain operation processes, but some are only used for measurement.Generally in scientific researchlaboratoryIn, inMedical researchAnd in practice, instruments are indispensable.[3]
It can refer to:
Measuring instrumentEquipment used to obtain relevant physical quantities in engineering and physics.
Measuring instrument(English: Measuring instrument, also known asMeasuring instrument、InstrumentationorMeasuring instruments）It is used to obtain relevant data for various tests.As we all know, in thephysics、engineering, andQuality assuranceOn the other hand, it is necessary to obtain correlation through measurementphysical quantityOf.The use of measuring instruments is a standardized means of measurement.However, due to various reasons such as the production process of the instrument and measurement errors, the physical quantities obtained by measuring the instrument existUncertainty。[3]
appliances
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appliancesIt is defined as a simple tool. It usually refers to a one-piece molding tool without movable parts, or a combination of two or three small parts, which can be operated by hand. It is also usually without power source or highscience and technologyIngredients, completely manual or simpleLever principle、MechanicsPrinciple.[3]
