电焊机线圈温升检测技术探讨

Welding Machine Coil Temperature Testing

本文介绍一种新的电焊机线圈温升检测技术的基本原理。利用这种方法,可以把被测量电阻值Rx转变为电压量Vx,并把它引入到计算机检测技术中。同时介绍了特别研制的“HRC-1电焊机热态电阻自动测试仪”的基本原理和技术指标,着重介绍了其中的技术关键精密恒流源和模入放大器及A/D转换两部分。

The concept and technology of welding machine coil temperature testing are introduced in this paper. The computer testing system can transfer Rx to Vx. The operation and technical parameter of type HRC-1 resistance temperature testing unit are also introduced. The key technical of stable current power source anologue input amplifer and A/ D transfer are emphased on.