"測定装置”は「Measuring device」「Measuring tool」「Measuring equipment」という英語を使えます。それぞれの説明は以下です。
「Measuring device」
「Measuring tool」
「Measuring equipment」
Each of these words encompass things that can be used to measure quantities of things. However, in daily english, you may hear the names of more specific measuring devices such as:
「Measuring cup」
「Measuring tape」
「Measuring spoon 」
I hope this will help you.
お役に立てば嬉しいです