Unified Disk Drive Test Apparatus with Direct Temperature Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for testing disk drives require separate apparatus for environment and interface testing, which is inconvenient and time-consuming due to the need to transfer disk drives between two different testing setups, and rely on indirect temperature monitoring using air flow measurements, leading to large, vibration-inducing fans and inaccurate temperature control.
Innovation Solution
A unified disk drive test apparatus with interchangeable environment and interface test cards, direct temperature sensing, and a non-contact sealing arrangement to minimize vibrations and improve temperature control, allowing for efficient and accurate testing of disk drives in a single setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate apparatus are used for environment testing and interface testing, then each testing function can be performed with dedicated equipment, but the need to transfer disk drives between two apparatus makes the process inconvenient and time-consuming
Solution Approach 1:
The patent combines environment testing and interface testing functions into a single integrated testing apparatus. The testing device includes a unified housing that accommodates disk drives and provides both environmental control capabilities and interface testing capabilities, eliminating the need to transfer disk drives between separate apparatus and thereby reducing time loss and improving operational convenience.
Solution Approach 2:
The testing apparatus is designed as a universal device that can perform multiple testing functions simultaneously. The apparatus includes both environment testing capabilities (for temperature, humidity, vibration) and interface testing capabilities (for data transfer performance) within a single system, allowing comprehensive testing of disk drives without requiring multiple separate apparatus.
2Measurement precision
If indirect temperature monitoring using air flow measurements is used, then temperature can be monitored without direct contact, but high speed and high volume air flow is required which demands large, high power fans that increase apparatus size and vibrations
Solution Approach 1:
The patent replaces the mechanical air flow-based temperature monitoring system with a direct temperature sensing system. Instead of using large fans to create air flow for indirect temperature measurement, the system employs temperature sensors that can directly measure the temperature of the disk drive and surrounding environment without requiring high volume air flow, thereby eliminating the need for large fans and reducing apparatus size and vibrations.
3Measurement precision
If high speed and high volume air flow is used for temperature monitoring, then temperature measurement accuracy is improved, but vibrations arising in the apparatus increase making it more difficult to minimise the effect of vibrations on disk drives
Solution Approach 1:
The patent eliminates the mechanical air flow system that generates vibrations by substituting it with direct temperature sensing. The temperature sensors directly contact or proximity-sense the disk drive temperature without requiring high speed air flow, thereby removing the source of vibrations while maintaining accurate temperature measurement capability.
Solution Approach 2:
The patent extracts and removes the high power fans and air flow generation components from the testing apparatus. By taking out these vibration-generating elements, the system eliminates the harmful vibrations while maintaining temperature monitoring capability through direct sensing methods.
4Reliability
If the apparatus is designed to damp vibrations from external sources and internal operation, then disk drive performance is protected, but the apparatus complexity increases
Solution Approach 1:
The patent applies vibration damping measures locally at specific critical points within the apparatus rather than implementing a comprehensive complex damping system throughout. The housing and mounting structures incorporate localized damping elements at positions where vibrations are most likely to affect disk drives, providing effective vibration protection with minimal added complexity.
Data Source
AI summary
A disk drive test apparatus has a plurality of bays each for receiving a respective disk drive to be tested. A plurality of card slots are provided each for receiving a test card via which a disk drive can be tested. Each of the test cards is either an environment test card or an interface test card. The card slots and the test cards are arranged such that each card slot (6) can selectively receive an environment test card or an interface test card. Other arrangements for disk drive test apparatus or disk drive mounting apparatus are disclosed.