Disk head detection apparatus for disk
A detection device and magnetic head technology, which is applied in the direction of functional testing of magnetic heads, etc., can solve the problems of inability to fully and objectively detect magnetic heads and different data reading speeds, and achieve objective and effective detection results
Active Publication Date: 2016-07-06
株洲钧诚精密制造有限公司
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The existing hard disk magnetic head detection device can only detect the magnetic head under constant temperature conditions, but in reality the data reading speed of the magnetic head is different at different temperatures, so it will not be possible to fully and objectively detect the magnetic head
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] Below in conjunction with accompanying drawing and specific embodiment, the present invention will be further described:
[0017] See Figure 1 to Figure 3 , the present invention relates to a hard disk magnetic head detection device, the preferred embodiment of which includes a heat insulation shell 10, a heat insulation cover 20, a heating element 40, a temperature sensor 50, a vacuum valve 31, a helium gas transmitter 32, a helium gas concentration sensor , head detector and controller.
[0018] The heat-insulating cover 20 is installed on the front door of the heat-insulating shell 10, and a closed and heat-insulated accommodation cavity 15 is formed between the heat-insulating cover 20 and the heat-insulating shell 10; The temperature sensor 50, the helium gas concentration sensor and the magnetic head detector are all installed in the housing cavity 15, and the controller is located outside the heat insulation shell 10; the vacuum valve 31 and the helium gas conv...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a disk head detection apparatus for a disk. The disk head detection apparatus comprises a heat insulation housing, a heat insulation cover body, a heating body, a temperature sensor, a vacuum valve, a helium transmitter, a helium concentration sensor, a disk head detector and a controller, wherein the heat insulation cover body is mounted at a front door of the heat insulation housing; a sealed heat insulation accommodating cavity is formed between the heat insulation cover body and the heat insulation housing; the temperature sensor, the heating body and the disk head detector are all electrically connected with the controller; the temperature sensor is used for detecting a temperature value in the accommodating cavity and sending the temperature value to the controller; and the heating body is used for working at different frequencies in a plurality of time periods under the control of the controller to adjust the temperature in the accommodating cavity for enabling the disk head detector to detect data reading speeds of a disk head in the accommodating cavity at different temperatures and sending the data reading speeds at the different temperatures to the controller. According to the disk head detection apparatus, the data reading speeds of the disk head in the accommodating cavity at the different temperatures can be detected, so that the disk head detection effect is more objective and effective.
Description
technical field [0001] The invention relates to a hard disk magnetic head detection device. Background technique [0002] At present, the hard disk magnetic head detection device generally exhausts the air in the sealed cavity through the vacuum valve, and then fills the cavity with helium through the helium conveyor, and discharges the remaining air at the same time. When the helium concentration in the cavity reaches 95 After %, stop inflating and start the magnetic head detector to detect the data reading speed of the magnetic head in the cavity; when the detection is completed, the helium is discharged through the vacuum valve and filled with air so that the staff can open the cavity door and take out the magnetic head. [0003] The existing hard disk magnetic head detection device can only detect the magnetic head under the condition of constant temperature, but in reality the data reading speed of the magnetic head is different at different temperatures, so it will not...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/455
CPCG11B5/455
Inventor 王凯
Owner 株洲钧诚精密制造有限公司