The model for achieving instrument interchangeability is through instrument classes, or types. Instrument Classes Standard Instrument Programming Interfaces IVI defines a standard architecture for swapping instruments that are capable of delivering the minimum measurement requirements of your test system. You cannot replace an 8½ digit DMM with a 5½ digit DMM in your test system, unless you only need 5½ digits of precision, regardless of the software architecture. If your test system requirements are DMM measurements with 8½ digits of precision, that means you must always use an 8½ digit DMM. However, the requirements of your test system are still the driving force behind which particular instruments you use. For example, with IVI drivers you can develop test code that works with any DMM. When discussing these possibilities, it is important to realize that software interchangeability of instruments through instrument drivers is still limited by the interchangeability of the hardware in question. Instrument interchangeability has long been a goal of many engineers building test systems, particularly in the military and avionics industries. The specific drivers contain information for controlling a specific instrument, such as command strings, parsing code, and valid ranges for instrument settings. IVI Driver Architecture – the class driver contains generic functions for controlling a DMM. You can change the specific instrument drivers (and corresponding instruments) in your system underneath the class driver without affecting your test code. From your test program, you make calls to the class drivers, which in turn communicate through the specific drivers for your instruments. The specific instrument drivers contain the information for controlling a particular instrument model, including the command strings, parsing code, and valid ranges of each setting for that particular instrument. Each one of these generic class drivers makes calls to specific instrument drivers to control the actual instruments. The IVI Compliance Package has eight classes – oscilloscope, DMM, arbitrary waveform/function generator, switch, power supply, power meter, RF signal generator, and spectrum analyzer. A class driver is a set of functions and attributes for controlling an instrument within a specified class, such as an oscilloscope, digital multimeter (DMM), or function generator. Interchangeability using IVI drivers is achieved through generic instrument class drivers. And large manufacturing companies of all kinds can more easily reuse and share test code between departments and facilities without being forced to use the same instrumentation hardware. Manufacturers in competitive, high-volume industries, such as telecommunications and consumer electronics, can keep their production lines running when instruments malfunction or must be recalibrated. Test system developers in the military and aerospace industries, who must maintain test systems and code for many years, can easily reuse their test code on new equipment as instruments are improved or become obsolete. The benefits of instrument interchangeability extend into a wide variety of application areas and industries. The company has no mortgage charges, outstanding or otherwise.The Benefits of Instrument Interchangeability The company's accounts were last made up to, are next due on 29 February 2024, and fall under the accounts category: Unaudited Abridged. The company's registered office is on Victoria Road, Emsworth. The nature of the business is Maintenance and repair of motor vehicles. IVI CAR WASH LTD is an active private limited company, incorporated on.
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