CN206293162U - Magnetic head instrument - Google Patents

Abstract

Magnetic head instrument includes thermally insulating housing, heat-insulated lid, type part, temperature part, valve member, conveying member, induction pieces, survey part and dominant control；Heat-insulated lid is installed on the front door of thermally insulating housing, and the collecting cavity of a closed heat insulation is constituted between heat-insulated lid and thermally insulating housing；Temperature part, type part and survey part are electrically connected with dominant control；Temperature part is used to detect the temperature value housed in cavity, and temperature value is sent into dominant control；Type part is used to be worked with different capacity respectively within multiple time periods under the control of dominant control, to adjust the temperature housed in cavity, so that survey part detects the data reading speed for housing the magnetic head in cavity at different temperatures, and data reading speed at each temperature is sent to dominant control.The utility model can at different temperatures detect the data reading speed for housing the magnetic head in cavity so that magnetism-head detection effect is more objective effective.

Description

Magnetic head instrument

Technical field

The utility model is related to a kind of magnetic head instrument.

Background technology

At present, magnetic head instrument is typically tentatively vented by valve member to the air in seal cavity, then by conveying member pair Helium please be filled in cavity, while discharging remaining air, inflation be stopped after the concentrations of helium in cavity reaches 95%, started Part is surveyed, with the data reading speed of the magnetic head in test chamber；After the completion of detection, then helium is discharged by valve member, and filled Air, so that staff opens chamber door, takes out magnetic head.

Existing magnetic head instrument can only detect under constant temperature to magnetic head, and magnetic head is at different temperatures in practice Data reading speed is different, in this way, will be unable to comprehensively and objectively detect magnetic head.

Utility model content

In view of the shortcomings of the prior art, the utility model is intended to provide a kind of magnetic head for solving above-mentioned technical problem Instrument.

To achieve the above object, the utility model is adopted the following technical scheme that：

A kind of magnetic head instrument, it includes thermally insulating housing, heat-insulated lid, type part, temperature part, valve member, conveying member, induction pieces, survey Part and dominant control；

Heat-insulated lid is installed on the front door of thermally insulating housing, and the receipts of a closed heat insulation are constituted between heat-insulated lid and thermally insulating housing Hold cavity；Type part is installed on the upper end in thermally insulating housing, and temperature part, induction pieces and survey part are mounted on housing in cavity, master control Part is located at outside thermally insulating housing；Valve member connects collecting cavity with conveying member；Temperature part, valve member, type part, conveying member, induction pieces and Survey part and be electrically connected with dominant control；Temperature part is used to detect the temperature value housed in cavity, and temperature value is sent into dominant control； Type part is used to be worked with different capacity respectively within multiple time periods under the control of dominant control, to adjust the temperature housed in cavity Degree so that survey part and detect the data reading speed for housing the magnetic head in cavity at different temperatures, and by data at each temperature Reading speed is sent to dominant control.

The type part is the heating tube that rear end is extended to from the front end of thermally insulating housing.

Thermally insulating housing includes housing, five fixed plates, five vacuum insulation panels and five sealing rings, and five vacuum insulation panels are embedded respectively In on five faces of housing, five fixed plates are packaged in outside five vacuum insulation panels respectively, and one is provided between each fixed plate and housing Sealing ring.

Heat-insulated lid is assembled from inside to outside successively by inner panel, vacuum insulation panel and outside plate.

The beneficial effects of the utility model are at least as follows：

The utility model can at different temperatures detect the data reading speed for housing the magnetic head in cavity so that magnetic head is examined Survey effect more objective effective.

Brief description of the drawings

Fig. 1 is the stereogram of the better embodiment of the utility model magnetic head instrument.

Fig. 2 is the stereogram of another view of the magnetic head instrument of Fig. 1.

Fig. 3 is the installation diagram of the subelement of the magnetic head instrument of Fig. 1.

Specific embodiment

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further：

Refer to Fig. 1 to Fig. 3, the utility model is related to a kind of magnetic head instrument, its better embodiment include thermally insulating housing 10, Heat-insulated lid 20, type part 40, temperature part 50, valve member 31, conveying member 32, induction pieces, survey part and dominant control.

Heat-insulated lid 20 is installed on the front door of thermally insulating housing 10, one is constituted between heat-insulated lid 20 and thermally insulating housing 10 closed Heat-insulated collecting cavity 15；Type part 40 is installed on the upper end in thermally insulating housing 10, and temperature part 50, induction pieces and survey part are mounted on House in cavity 15, dominant control is located at outside thermally insulating housing 10；Valve member 31 connects collecting cavity 15 with conveying member 32；Temperature part 50th, valve member 31, type part 40, conveying member 32, induction pieces and survey part are electrically connected with dominant control.

Temperature part 50 is used to detect the temperature value housed in cavity 15, and temperature value is sent into dominant control；

Type part 40 is used to be worked with different capacity respectively within multiple time periods under the control of dominant control, to adjust collecting Temperature in cavity 15 so that survey part and detect the data reading speed for housing the magnetic head in cavity 15 at different temperatures, and will Data reading speed at each temperature is sent to dominant control.

The operation principle of conveying member 32, induction pieces and valve member 31 would know that by prior art, repeat no more.

When using, heat-insulated lid is opened, magnetic head is put into heat insulation shell, closing heat-insulated lid；Dominant control according to The detected value control valve member of induction pieces extracts the air housed in cavity out, then controls conveying member to house helium to cavity is housed, Concentrations of helium stops inflation after reaching preset value, starts and surveys part and type part, and adjustment type part is worked in respectively within multiple time periods Default different capacity, to adjust the temperature housed in cavity so that survey part and detect the magnetic housed in cavity at different temperatures The data reading speed of head, and data reading speed at each temperature is sent to dominant control；After detection is finished, taken out by valve member Go out helium, and be filled with air, staff can open heat-insulated lid, take out magnetic head.

The utility model can at different temperatures detect the data reading speed for housing the magnetic head in cavity 15 so that magnetic head Detection results are more objective effective.

Preferably, the type part 40 is the heating tube that rear end is extended to from the front end of thermally insulating housing 10, so as to improve temperature tune Section efficiency.

In the present embodiment, thermally insulating housing 10 includes housing 11, five fixed plates, five vacuum insulation panels and five sealing rings, and five is true Empty thermal insulation board is embedded on five faces of housing 11 respectively, and five fixed plates are packaged in outside five vacuum insulation panels respectively, each fixation A sealing ring is provided between plate and housing 11.

In this way, may be such that the heat that type part 40 is produced is remained in collecting cavity 15 to greatest extent, temperature adjustment is improved Efficiency.

Preferably, heat-insulated lid 20 is assembled from inside to outside successively by inner panel, vacuum insulation panel and outside plate, is further carried High-temperature adjusts efficiency.

" electric connection " being related in the utility model is there is electric signal transmission between finger element, is not limited to physically Be directly connected to, for example, it may be being indirectly connected with by wire, it is also possible to carried out indirectly by other elements such as resistance, electric capacity Connect, or directly by scolding tin or inserting connection.

For a person skilled in the art, technical scheme that can be as described above and design, make other each Plant corresponding change and deform, and all these changes and deforms the guarantor that should all belong to the utility model claim Within the scope of shield.

Claims (1)

1. a kind of magnetic head instrument, it is characterised in that：It include thermally insulating housing, heat-insulated lid, type part, temperature part, valve member, conveying member, Induction pieces, survey part and dominant control；

Heat-insulated lid is installed on the front door of thermally insulating housing, and the collecting that a closed heat insulation is constituted between heat-insulated lid and thermally insulating housing is empty Chamber；Type part is installed on the upper end in thermally insulating housing, and temperature part, induction pieces and survey part are mounted on housing in cavity, dominant control position In outside thermally insulating housing；Valve member connects collecting cavity with conveying member；Temperature part, valve member, type part, conveying member, induction pieces and survey part It is electrically connected with dominant control；Temperature part is used to detect the temperature value housed in cavity, and temperature value is sent into dominant control；Type part For being worked with different capacity respectively within multiple time periods under the control of dominant control, to adjust the temperature housed in cavity, So that survey part detects the data reading speed for housing the magnetic head in cavity at different temperatures, and by digital independent at each temperature Speed is sent to dominant control,

The type part is the heating tube that rear end is extended to from the front end of thermally insulating housing,

Thermally insulating housing includes housing, five fixed plates, five vacuum insulation panels and five sealing rings, and five vacuum insulation panels are embedded at shell respectively On five faces of body, five fixed plates are packaged in outside five vacuum insulation panels respectively, and a sealing is provided between each fixed plate and housing Circle,

Heat-insulated lid is assembled from inside to outside successively by inner panel, vacuum insulation panel and outside plate.