The Ci raise

A, the Ci measure instrument, equipmentsThe in common use Ci measures instrument to have:The Ci account, especially the Si pull to account(be called Gauss to account again) and the Ci measure an instrument.The Ci accounts to used for measuring Ci to respond a flux, especially the Si pull to account to used for measuring strength or the spirit Xi magnetic field strength of the surface magnetic field, the Ci measures an instrument to use Wu diagraph comprehensive magnetism ability.Before all instruments use in response to careful reading manual, prepare according to the request of manual hot, prepare hot after according to manual of the request carry on an operation. Two, application especially the Si pull to account(the Gauss account) to measureEspecially Si's pulling to account generally can used for the surface magnetic field which measures magnetism material strength, concrete but the speech be the field which measures surface center part strong. Before measure should according to manual of the request carry on prepare hot, then check, adjust zero:00, make to measure not under the appearance of show to be worth to"0".Notice:In the process of use in generally shouldn't adjust the electric current of Huo Er.Replace to stretch forward should according to stretch forward of the elucidation adjusts Huo Er electric current under the instrument hot Tai, and at appropriate of the electric current parameter of the part marking Huo Er value.Can usually check an electric current value, in response to is a prescriptive number. The method which measures a form field can't be accurate to acquire overall Ci parameter(if remain Ci, the dint of Jiao Wan, Ci can accumulate) and usually above descend a limit mark the center field data of the kind Be a reference to carry on a qualified discretion.The this kind method can use to the N, M series and want to differ to the H above series accurate degree some.Generally speaking can say the center field of different size(cylinder or circle slice) of the formula calculation according to the bottom: H=Br*K/√ (1+ be 5.28* Ks*K)(Gs) type in:The Br-mark calls to remain CiK-cylinder, circle the long path of the slice ratio or square piece magnetize direction and another two directions in shorter side long of ratio.Differ bigger product K to the Wu long breadth=take toward the length/SQR(long*breadth)More accurate calculation formula: H=Br*K/√ (1+(4+32/L)*K*K)(Gs)L-square piece magnetize the length of the direction32-the test coefficient stretch forward parameter(0.5*64)Especially the Si pulls to account to stretch forward a slice the assurance of the position inside the Huo Er:Generally speaking, the slice of Huo Er the area which only have about 1* 1~2* 3 or so sizes, the thickness is about 0.3~0.5 millimeters, and don't be stretch forward of forefront, sometimes need to make sure the position of the slice of Huo Er, can be adopt as follows of method to judge the position of the slice of Huo Er:Will stretch forward in the surface of the product of Chong Ci, at this time especially the Si pull to account to show a value not to zero, stretch forward always outwardly side extension to explore and be Si especially pull to account to show a value is at zero:00 is the front department of the slice of Huo Er, follow a product with pencil or mark pen of outside boundary line marking mark;Will stretch forward to mutually opposite side extension(at this time stretch forward only have one small part contact on the Ci body), be Si to pull to account to show value especially in order to be do mark at zero:00, the medium position of two marks is the actual position of the slice of Huo Er.Certain Huo Er slice position apply diameter more than 10~15 millimeters products. Especially the Si pulls to account of advantage's being size, small cylinder or circle slice of the form field that can test a generous piece different position be two magnetic field sizes which carry noodles and make sure the consistency of a cake of() product magnetism ability. A, application Ci account diagraphCi's account is the Ci that the generally direct diagraph stretches forward coil to respond a flux and use go together with is more with the Huo Mu Hertz coil, this kind method mostly carry on a comparison with standard sample, then carry on the qualified of product to judge. Must carry on prepare according to the request before Ci account usage hot, use medium want to adjust a good integral calculus drift, make drift the quantity is rule of scope inside.Want to be heavy to settle before measure each time pure zero, release electric charge or drift integral calculus electric charge of the remain of integral calculus electric capacity. When the Ci road of Ci body shuts to match, can use a Ci to account diagraph and compute to remain Ci, concrete calculation method BE: Br=Φ /N/SIn the type: Φ -Ci fluxThe N-coil full circle countS-Ci body horizontal piece areaThe qualified sex examination which account to carry on a product of the applied Ci, being measured the opposite position of sample and coil must be with"standard sample of with the opposite position of coil" homology.If the function scope of product contains strict request, should keep the product of upper limit function, descend the product of limit function to settle by carrying on an examination a mark, examine. Two, the application Ci measure instrument diagraphThe Ci measures the magnetics data of instrument diagraph more whole opposite, can measure, record to back Ci curve, acquire more well-found magnetics parameter.Invite manual of according to the equipments in detail, please forgive here don't do to give unnecessary details. The diagraph of abnormal shape product, sometimes need to create special work to pack, to carry on a special calculation while measure, avoid result in to measure a mistake.Concretely according to the elucidation or the data concerning magnetics that the Ci measures an instrument. Three, have a dissimilarity usage temperature to request a product of measureWhen the product contains the customer whom the usage temperature request, there is Ci measuring an instrument of can adopt first saturated Chong Ci, is rule again of the temperature cooks under the baking or water, the oil cook, then direct test, record to back Ci curve.When the parameter requests to be more can be provided a product test the curve by the supplier or pass the third square carry on a test to obtain concerning the parameter, don't suggest that the customer purchases "temperature characteristic the Ci measure an instrument".(because its price is higher and also usually use impossibly) Four, the Ci measure of relevant specially explain(1),Because the Nyu iron Peng magnetism material properly can't go against losing existence, the result which repeats a test generally wants to compare to test for the very first time of the function may be a little bit low; (2),After finished product test can hardly use infliction anti- thoroughly back Ci toward the method of magnetic field, for some products but speech, Chong Ci after may bring to the gearing of product inconvenience; (3),Being measured sample can't adopt the way of magnetic field to back Ci, can carry on time limited efficacy to back Ci, other methods of hot back Ci may bring bad influence to material;Hot back Ci to also have extremely harmful influence to Tu2 Ceng2; (4),Plate the product of Nie, because the Nie is an iron magnetism material, have already lowered a function to the outside function of original product, please customer at Tu2 Ceng2 of the product choose, function choice take in to consider. (5),Regardless the Ci account, especially Si's pulling to account can't acquire a complete magnetism ability parameter; (6),Sample and environment temperature while test should in 23~25 ℃ scopes, and the test report the environment temperature that should note to test a hour. (7),Generally speaking whether thinner product regardless electroplates or not all more difficult directly measure each magnetism an ability parameter, but can adopt front the introductive method accounts to measure to diagraph to remain Ci with the Ci, match especially the Si pull to account diagraph center a field and can more and dependablely judge N, the M series function of the product.

Five, concerning Chong Ci
At under the circumstance of the Ci body length close coil of Chong Ci Chong Ci, the perpendicular center position of Ci body should be heavy with the perpendicular center position of the coil of Chong Ci to match, so then can promise the strength equality of the Ci body both ends magnetic field, the symmetry which promises Chong Ci lets up to result in to°from the reason of the Wu Chong Ci method the Ci body magnetic field strength of the both ends surface equal. The theories proves that the Chong Ci magnetic field strength of the coil both ends is the magnetic field strength of the central point of coil yes 1/2, at the length of the Ci body close coil of Chong Ci, for the product of H, SH above series probably can't saturated Chong Ci, when be the magnetic field strength isn't enough big, even hour the product of the M, N series can't also saturated Chong Ci.Under the general condition, the length of the Chong Ci Ci body had better be small at the coil of Chong Ci of 2/3. Six, the easy magnetize direction(mindset direction) concerning Ci body judgeAll exist an identify of mindset(easy magnetize direction) problem toward the cylinders of mindset to the square piece, perpendicular stalk of the Wu exact square, can adopt the product of Chong Ci already or use instrument to carry on identify, concrete method as follows: 1), use the product of Chong Ci have already carried on identify:To the Wu exact square square piece, because of material of each to the opposite sex, Ci's raise is to press the mindset direction alignment, as a result the mindset direction is easy to magnetize and magnetize different mutually absorb a vacuum force very much bigger after, rather than mindset direction of the vacuum force then is small and identify to judge a mindset direction with the time;The magnetic iron that the examination use should be slightly a little bit big and lead a Ci body the vacuum force size difference doesn't easily distinguish for hour;To the Wu perpendicular stalk is to the cylinder of mindset, general can use the Ci body of Chong Ci have already carried on an examination:Absorb cylinder surface with the magnetic iron, start to absorb a cylinder, perpendicular with ground of the direction is the mindset Chong Ci direction; 2), make use of a Ci to account to carry on identify:Can absorb a piece of magnetic iron on the exact square material, direction and Ci coil of magnetic iron is perpendicular, Ci one noodles with opposite and bigger value is mindset noodles, with this noodles perpendicular of direction is mindset direction.