科技内容:高灵敏度交流检流计,是国内电机工业、科研单位急需的交流高压电桥的指零仪器,因此要求有很高灵敏度,又要低噪声,又具有抗干扰及抗过载的能力,技术难度比较高。这种仪器的生产技术,在国际上一向为瑞士“态特士”电仪公司所垄断。他们不仅提高价格,并且还附带有其他条件。在使用单位迫切要求下,我们经 Science and technology content: high-sensitivity AC galvanometer is a zero-point instrument for high-voltage AC bridges that are urgently needed by the domestic motor industry and scientific research institutions. Therefore, it requires high sensitivity, low noise, and the ability to resist interference and overload. , The technical difficulty is relatively high. The production technology of this kind of instrument has always been monopolized by the Swiss State Taxi Electric Instrument Company. They not only raise prices, but also have other conditions attached. Under the urgent request of the use unit, we have