A shekarar 1996, mun samarƙarni na farko: firikwensin saurin yanki mai suna QSD6526 firikwensin.
Yana aiki akan ka'idar doppler ultrasonic, yana iya auna ƙimar kwarara ta firikwensin ultrasonic da matakin ruwa ta firikwensin matsa lamba;
Yana da tsarin manne;
Gudun gudu: 21mm/s zuwa 4500 mm/s;
Tsawon zurfin: 0 zuwa 2m da 0 zuwa 5m.
Daidaito: 2%
A cikin 2014, na biyutsarana firikwensin saurin yanki: QSD6527 firikwensin an samar da shi.
Mun canza hanyar auna ruwa ta firikwensin ultrasonic maimakon firikwensin matsa lamba;
Yana ɗaukar fasahar potting na Epoxy;
Ikon auna bidirectional .
A cikin 2018, ƙarni na uku na firikwensin saurin yanki: QSD6537 firikwensin an saki.
Haɓaka aikin haɓakawa, matsa lamba da firikwensin ultrasonic hanyoyi biyu don auna matakin ruwa, ƙara yawan ramuwa da zazzabi, ramuwa matsa lamba, ma'aunin siginar analog zuwa ma'aunin siginar dijital, daidaito ya karu zuwa 1%;
Matsakaicin saurin gudu: 20mm / s zuwa 12m / s;
Matsayin matakin ruwa: 20mm zuwa 5m ultrasonic;0mm zuwa 10m matsa lamba;
Kuna iya auna ruwa mai tsabta;
Sensor tare da ƙarin fitowar modbus RTU;
An samu babban ci gaban fasaha .
Lokacin aikawa: Nuwamba-28-2022