Instrument stability and reliability
There are many definitions of instrument stability and reliability in life. Today’s society is an era of science and technology. There are many definitions about some instruments. High-tech, very important for stability. Stability is what we need to know, below is the stability and reliability of the instrument. Instrument Stability and Reliability 1
Stability refers to the ability of the instrument to maintain its error characteristics. It has two indicators. One is measured by the error change of the instrument’s indicated value over a period of time. It is expressed by stability, and the other is the instability of the indicated value caused by changes in the external environment and working conditions of the instrument, which is expressed by the amount of influence. For example, the stability of AT5010 is better than 250KHz/hour.
Instrument stability refers to a certain stable state of instrument elements under external influence. Its meaning generally falls into the following three categories:
(1) External temperature, mechanical and other changes will not have a significant impact on the state of the instrument.
(2) The instrument deviates from the normal state due to some interference. When the interference is eliminated, it can return to its normal state, then the instrument is stable; on the contrary, if the instrument once deviates from its normal state, it can no longer If it returns to the normal state and the deviation becomes larger and larger, the instrument is unstable.
(3) The general tendency of an instrument to occur automatically or easily. If an instrument can automatically tend to a certain state, it can be said that this state is more stable than the original state.
The instrument does not have strict stability indicators
Individual hardware has, such as the continuous failure-free time of the hard disk and the continuous failure-free time of the power supply. This is Hardware stability index
Although the instrument does not have a stability index, it can improve the stability of the instrument. If the stability of the instrument is improved:
The server field has a dedicated server processor, and the server processes The server can work continuously for several years; ECC memory with verification can reduce the possibility of crash as much as possible. Server-level hard disk can work continuously 7*24 hours. Redundant power supplies, server instruments and UPS provide uninterrupted power supply, and even require dedicated computer rooms for moisture-proof treatment.
Household use is relatively loose. When purchasing hardware, try to buy genuine accessories, especially the motherboard (the bridge of the entire device) and the power supply (the core of the instrument’s power), including good heat dissipation and optimized instruments. . can improve the stability of the instrument.
Extended information:
If the instrument is disturbed, no matter how large its initial deviation is, it can return to the initial equilibrium state with sufficient accuracy. , this kind of instrument is called an asymptotically stable instrument in a large range.
If the instrument is disturbed, it can only return to the initial equilibrium state after the disturbance is canceled when its initial deviation is less than a certain value. When its initial deviation is greater than the limit value, it cannot return to the initial equilibrium state. This kind of instrument is called a stable instrument within a small range. Instrument Stability and Reliability 2
Instrument and Equipment Management Rules<. /p>
In order to strengthen the maintenance of laboratory instruments and equipment, give full play to the experimental functions of the instruments and equipment, improve operating efficiency, extend service life, and better serve scientific research, this system is specially formulated.
Article 1: The director of the key laboratory is responsible for the macro management, and the specific management is carried out according to the room-based management and open use system.
Article 2: Instruments and equipment. The laboratory property manager is responsible for the use registration, account management, scrapping, etc. .
Article 3 If it falls within the scope of large-scale instruments and equipment, it shall be managed in accordance with the management rules of large-scale instruments and equipment.
Article 4 If laboratory personnel need to receive instruments and equipment, they must truthfully register the collection and return information.
Article 5 Laboratory personnel should take good care of instruments and equipment, maintain public hygiene, and ensure the normal operation of equipment. The equipment management personnel must be notified of the instruments and equipment that need to be purchased and scrapped. To purchase instruments and equipment, fill in the purchase form first, and the laboratory director can review and approve it before purchasing.
Article 6. Laboratory personnel must carefully read the equipment operating instructions and precautions before operation. If any problems with the equipment are found, they must immediately report to the equipment administrator. If the standard operating procedures are not followed and the equipment is damaged or an accident occurs, the damage will be dealt with accordingly according to the extent and circumstances of the damage. If the standard operating procedures are strictly followed but the failure is caused by other unpredictable factors or force majeure factors, the equipment will be exempted from the exemption. Penalties must be imposed, but must be reported immediately to the equipment manager for timely repairs; those who cause accidents shall be held accountable. Anyone has the right to stop operations that violate regulations.
Article 7 Establish a regular inspection and maintenance system. Equipment managers regularly check instrument usage records and maintain contact with instrument and equipment maintenance stations to ensure the smooth progress of instrument and equipment maintenance, keep instruments in optimal condition, and prevent accidents. When serious malfunctions occur in instruments and equipment, a damage and repair report shall be submitted in a timely manner.
Article 8 No one may lend instruments and equipment to persons other than those in the department for use without permission. If it is necessary for work, you must ask the management staff in advance, and you can only borrow it after approval. Experimenters are not allowed to undertake external experimental work without authorization.
Article 9 The software purchased by the laboratory shall comply with the above regulations.
Article 10 This management system is explained by the Key Laboratory of Autonomous Systems and Network Control of the Ministry of Education. Instrument stability and reliability 3
1. Purpose of instrument and equipment management
In order to do a good job in experimental teaching, scientific research and comprehensive utilization, provide material conditions and a good environment, and continuously improve teaching and scientific research Quality and utilization rate of instruments and equipment to achieve the purpose of maximum sharing of resources.
2. Scope of instruments and equipment
All common and valuable instruments currently in the laboratory are included in this scope.
3. Management rules for instruments and equipment
1. The instruments and equipment in the laboratory shall be managed in a unified manner and the principles of hierarchical responsibility shall be followed.
2. Laboratory instruments and equipment adopt a personal responsibility system. Management responsibilities must be assigned to people. The designated responsible person must do a good job in instrument and equipment management and must be responsible for the daily maintenance of the instruments. If there is a malfunction, it must be promptly repaired. After the report was reported and approved by the laboratory director, maintenance was contacted. The person in charge is obliged to answer the problems encountered by the user during use and provide technical guidance.
3. Daily management of instruments and equipment:
(1) Regularly count and check whether the actual number of instruments and equipment is consistent with their accounts and cards, and check it once at the end of each semester.
(2) Regularly maintain, clean, and inspect instruments and equipment to ensure their integrity, once a quarter.
(3) Pay attention to observe the normal operation of instruments and equipment at any time. If problems are found, take measures to deal with them promptly and properly.
(4) Pay attention to daily cleanliness and hygiene. After each experiment, the instruments and equipment must be tidied up and placed in time.
4. Management rules for the use of instruments and equipment
1. The user should use the instrument in accordance with the manual, and the use process must strictly follow the operating specifications, such as If any problems occur due to non-standard use, the user shall bear all responsibilities.
2. The laboratory shall inspect and prepare instruments and equipment (including laboratories and preparation rooms) before experiments as planned for experimental teaching and scientific research to ensure the smooth conduct of experiments.
3. The instruments and equipment in the laboratory preparation room shall be used and maintained jointly by the teachers and technicians responsible for this teaching and scientific research task to ensure their normal operation.
4. Large precision instruments and equipment must be kept by dedicated personnel and all original records must be kept.
5. Borrowing rules for instruments and equipment
1. If other people need to use the equipment, they must make a borrowing request to the responsible person and obey the arrangements of the responsible person. If you have any objection to the arrangement of the responsible person, you can give feedback to the director of the functional room.
2. If the laboratory needs to borrow instruments and equipment from other rooms, formalities must be completed before borrowing.
3. In principle, the instruments and equipment in this laboratory cannot be loaned out. If they need to be loaned out, they must obtain the consent of the laboratory director and go through the formalities before they can be loaned out.
4. Public instruments should abide by the first-come-first-served principle and be used in an orderly manner. If you cancel for any reason, you should explain it to the responsible person in advance. If you break the contract without reason and waste time, you need to register it in the register.
6. Plan management of instruments and equipment
1. Based on the teaching and scientific research tasks and requirements, the laboratory proposes an annual plan for instruments and equipment and reports it to the competent department of the institute.
2. Based on the school’s teaching funding situation and the actual situation of the center, propose a specific instrument and equipment plan and submit it to the Equipment Department for implementation.
3. The laboratory should carefully check the implementation of the plan and contact relevant departments to better complete the planned tasks.
4. If the laboratory temporarily adds instruments and equipment according to changing circumstances, the plan must be submitted to the equipment department. The Equipment Department will consider whether the plan can be adjusted based on the funding situation and agree to implement the temporary increase plan.
5. After the laboratory receives the instruments and equipment, it must check and accept them in a timely manner (including the acceptance of their quantity and quality) and keep records. If any problems are found, they must contact the relevant units in a timely manner so that they can be properly resolved.
6. If a malfunction occurs or is discovered during the use or maintenance of the instrument and equipment, if it can be repaired by itself, it must be repaired in time; if it is not sure or incapable of repairing, it should be sent for repair or technical personnel should be contacted. Come for repairs.
When upgrading instruments and equipment, we should not only be forward-thinking, but also pay attention to diligence and frugality. Scrapping must be strictly implemented in accordance with the relevant management systems of the school.
7. Rules for the placement of instruments and equipment
In principle, once the instruments are handed over to the responsible person, they should be placed in a fixed location and must not be placed randomly. In special circumstances, You need to agree with the responsible person *** to return it to its original place after use. In principle, valuable instruments should be placed fixedly and cannot be moved.
8. Punishment Rules
For instrument users, if the instrument is damaged or damaged due to improper operation, they should report it to the relevant personnel in a timely manner, not conceal it, and bear the corresponding aftermath work. Depending on the severity of the case, certain penalties will be imposed.