Single-circuit snap action temperature controller synchronization test method

Abstract

The invention discloses a single-circuit snap action temperature controller synchronization test method, which comprises synchronization test equipment and synchronization test procedures. The synchronization test method uses the synchronization test equipment, and carries out a synchronization test on a tested product according to the synchronization test procedures. The synchronization test equipment comprises a test frame, a test box, a temperature control device, PLC processor, a touch display screen, an electric signal line, an acoustic signal line and a tested product. The test method comprises an initial state, a temperature control state, a dynamic state, signal acquisition, time-differential comparison and a test result. According to the invention, the closed test box is designed, time difference analysis is carried out on circuit signals and acoustic signals, the signal reception time difference is quantified by using a time-differential device, and a synchronization characteristic of a temperature controller is accurately judged; the labor intensity is reduced, and the level of the product quality is improved; and indexes required by a customer are ensured to be reached through voluntarily adjusting the judgment time difference standard, and rising in product defective rate caused by overhigh synchronization standards is avoided at the same time.

Description

technical field [0001] The invention relates to the field of technical equipment for synchronous testing of thermostats, in particular to a method for synchronous testing of single-loop jump-type thermostats. Background technique [0002] The accuracy of the temperature threshold value and the jump action time synchronization of the jump thermostat is an important basic condition to ensure the operation and analysis of the temperature control system. Its core function is to provide transient, dynamic and steady-state data of thermal components Acquisition, when the temperature reaches the threshold value, analyze the electrical and acoustic signals of the sudden jump thermostat, and test its time synchronization characteristics. [0003] In the existing industry, according to different customer requirements, different standards are implemented for the requirements of the synchronization characteristic index; the synchronization test of the thermostat is carried out according...

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Problems solved by technology

[0004] The deficiencies in the existing technology are as follows: the customer does not require the thermostat product to test the synchronization. In the environment where the temperature changes rapidly and the thermal inertia is small, it is easy to cause rapid cycle switching of the circuit on-end state, and electrical appliances appear. It cannot be used, and the situation of rapid damage occurs; manual listening to the synchronization signal requires high requirements for the working environment, otherwise it is easy to cause misjudgment; manual listening to the synchronization signal cannot form a unified time difference standard, and the time standards for the reception of the two signals are not consistent according to the human body. As a result, there are disputes about whether the synchronization of some products meets the standard

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