JPS61501284A - test equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] test equipment The present invention tests the performance of certain components in a certain process and converts this to desired performance. This invention relates to a known type of device for comparing performance and indicating the pass or fail of the element. of the equipment Insufficient driver attention may cause the driver to perform the test procedure and fail the element. Even though you got the instructions, there is a possibility that it will be included in the set of elements that passed the test. There is enough. The purpose of the invention is to provide information to the driver regarding the test being carried out. on the basis of which the driver can make his own decision regarding the acceptability of the performance of the element. The aim is to solve this problem by inputting the settings into the device. Good luck with the above decision By having the driver perform the test himself, the device makes the results of the test more familiar to the driver. therefore, drivers are less likely to misinterpret test results. .

The present invention provides a means for storing the desired performance of a component, testing the performance of the component. , and the means tested to determine the acceptability of the tested performance. The performance is compared with the desired performance.

An embodiment of the invention will now be described with reference to the accompanying schematic drawings.

The illustrated embodiment is described with respect to testing a filter used to disinfect a liquid.

It is important that this filter does not have pores large enough to allow impurities to pass through. Yes, therefore, critical dimensions can be determined by forward flow test and milling point test. Periodically test the filter for more pores. forward flow – In a test, when compressed air is applied to the bell side of a submersion filter, the air flows through the filter. is dissolved in the soaking liquid and evaporated from the liquid on the other side of the filter. the result, A slight air flow occurs through the filter. This airflow is caused by the large pore size of the filter. The pore size increases as the airflow increases, so measure the pore size from the flow rate of air passing through the filter. can be done. In the bubble test, higher pressure is applied to one side of the filter. Eventually, the liquid film across the hole ruptures, allowing an extremely increased flow of air to pass through the hole. pass

Because the rupture of the liquid film occurs from larger pores than from smaller pores, the increased air flow The pressure of the air as it passes through the filter will indicate the maximum size of the filter's pores.

The illustrated device includes a keyboard 11 for inputting information into the device, a liquid crystal display device 2, and an output device for outputting information. It has a printer 13 for printing. This device provides the desired one or more memory that stores performance and processes information applied to the keyboard The program stores information and tests displayed on the liquid crystal display device 12. It consists of another memory that also controls the performance of the device.

The air pressure at the side is measured, and this air pressure supplied by the kit. Air flow is controlled by a microprocessor 14. It is controlled by an idle valve 22.

When the test begins, the microprocessor 14 asks a series of questions □ Program following the next question when the answer is entered and processed on the keyboard 11 □ is displayed on the display device 12. The driver then selects a micro to perform selected tests. Instructs the processor to charge during testing or e.g. If applicable, it will subsequently provide reference information on the various items used. The configuration being tested The component is pressed by pressing an appropriate key on the keyboard 11 connected to the device by the quick-motion connecting member 21. When the test begins, air pressurizes the element through flow controller 23. the air There is one flow controller that is passed through first, but the air pressure reaches a given value within a certain amount of time. If the air volume increases in the test chamber without connected to. When the pressure reaches the desired value, the microprocessor resets the device to stabilize the pressure in the test chamber.

After a period of stable pressure, reduce the pressure on one side of the immersion filter and Measure the pressure change on the other side of the tank. The pressure vs. time curve is printed by the printer 13 and It is compared to the ideal pressure/time relationship value for the test being performed. Performance tested The machine determines whether the ideal performance is sufficiently approximated.

At the end of the test, the microprocessor displays a question to the driver on the LCD display 12. and determine whether the performance displayed on the printer 13 is acceptable. Ask the convert. The driver manually compares his decision with the machine's decision and programs it. The ram then causes the display device 12 to indicate whether the driver's decision is correct.

If the driver makes a wrong decision, the system will sound an alarm to warn the driver. this The program tests the elements being tested until the driver manually makes the correct decision. Prevents the test device from being released so that the driver cannot access the tested element. Channels leading to either handled and accepted or rejected elements can be deployed to familiarize with accurate test results before handing over to

In addition to showing the change in pressure over time during component testing, an LCD display The device 12 displays the pressure during all stages of operation.

The printer 13 is installed on the front of the test equipment, and new paper is sent to the panel of the test equipment. It can be inserted from the front. The printer 13 displays pressure in analog format. Pudding The data center also prints a record of when the incorrect determination was made and also confirms that the driver Print the right decision at the time.

Abnormal situations occur when there is a blockage or leakage of air flow into the test chamber. bar The change in pressure over time is zero, as occurs when a valve remains closed. The microprocessor then aborts the test and the driver displays the valve via display 12. This will check the connection. Similarly, if the filter is broken or the pressure leaks If there is an extreme pressure change, as in the case of It will be done. Printer 13 prints that a failure has occurred and gives the reason. .

Although the illustrated embodiment has been described in connection with testing a filter, it is It can be applied to the testing of any component using transducers that measure parametric variables. I can do it.

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Claims (7)

[Claims] 1. means for storing the desired performance of a given element, testing and displaying the performance of the element; means to indicate the tested performance and to determine the acceptability of the tested performance. a means of comparing the desired performance and the driver's decision regarding the acceptability of the indicated performance. a means for accepting and a means for indicating the correctness of the driver's decision; equipment for testing certain elements. 2. 2. The device of claim 1, wherein said indicating means comprises an audible warning device. 3. Until the driver provides a correct decision to said receiving means, said element is a device. Claim 1 or 2, comprising a means for preventing the invention from being released. equipment. 4. A special feature comprising means for indicating a parametric variable in the test means during the testing of said element. An apparatus according to any one of claims 1 to 3. 5. Claim 4 comprising means for recording the parameter and the driver's decision. The device described. 6. Any of the claims comprising means for indicating an abnormality in the test means. The device described in any of the above. 7. Test apparatus substantially as described above in connection with and illustrated in the accompanying drawings.