Ⅰ. Functions and Characteristic

The fruit sclerometer (also called fruit hardness tester), this series has GY-1, GY-2, GY-3three kind of models, use to testing apple, pear.

Strawberry, grape's fruit's hardness. It is suitable for the fruit tree scientific research department, the fruits company, the fruit tree farm, unit and so on technical college agriculture colleges and universities, to cultivate the improved variety, the harvest storage, the product transportation and the processing and so on by the fruits hardness. Thus judge fruit's mature degree. This instrument volume small, the weight is light, straight reads the type, carries conveniently, specially is suitable for the scene determination, the result came out direct.

Ⅱ. Principle

The hardness of fruit can express by the unit area (s) could undertake the pressure of dynamometer (N), their specific value is just as the hardness(P).

P=N/S

P—the hardness value of fruit 10⁵Pa or (kg/cm²)

N—pressure of dynamometer (N) N or (kg)

S—the area of pressure m² or (cm²)

Ⅲ. Spdcification

Model	GY-1	GY-2	GY-3
Indication scale	2-15kg/cm2 (×105Pa)	0.5-4kg/cm2 (×105Pa)	0.5-12kg/cm2 (×105Pa)	0.5-24kg/cm2 (×105Pa)
Pressure Head size	Φ3.5mm	Φ3.5mm	Φ11mm	Φ8mm
Precision	±0.1	±0.02	±0.1
Insertion Depth	10mm
Size	140×60×30mm
Weight	0.3kg