CN2844912Y

CN2844912Y - Fruit maturity instrument

Info

Publication number: CN2844912Y
Application number: CN 200520093572
Authority: CN
Inventors: 沙兴峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-15
Filing date: 2005-11-15
Publication date: 2006-12-06
Anticipated expiration: 2015-11-15

Abstract

The utility model relates to a melon fruit maturity detecting instrument. The utility model is composed of two probes a, b and an alarm circuit, wherein the two probes a, b are positioned at the front end of the maturity detecting instrument, and the alarm circuit arranged in the maturity detecting instrument is a voltage division loop formed by that an adjustable resistor VR is in tandem connection with the probes a, b. The connecting terminals of the adjustable resistor VR and the probe a are switched in through pins 12, 13 of an integrated block CD4011, and one branch led out through a pin 11 is switched in for a second time through pins 8, 9 and is led out through a pin 10 so that the branch, a resistor R1 and a light emitting diode VD are in tandem connection with each other in sequence to form a light emitting loop. The other branch led out through the pin 11 is switched in through a pin 1, is led out through a pin 3, is switched in for a second time through pins 5, 6, is led out through a pin 4 and then is switched in an oscillation circuit which is composed of a capacitor C4700P and a resistor R2. Pins 2, 6 are electrically connected to the oscillation circuit and a buzzer HTD is in tandem connection with the oscillation circuit. The utility model has the characteristics of simple structure, convenient manufacture and use, etc. The utility model can easily detect the maturity of fruits of the melon class.

Description

The melon and fruit fruit maturity instrument

Technical field the utility model relates to a kind of sniffer, and especially whether ripe people be used for detecting melon fruit melon and fruit fruit maturity instrument.

In the background technology actual life people buy and plantation such as melon fruit processes such as watermelon, muskmelons in, often need to judge its whether growth and maturity; And judge that whether ripe what adopt usually is to see, strike, bullet, way such as listen to this type of fruit, above-mentioned way not only wastes time and energy, and poor effect.For the fragrant and sweet degree of melon and fruit, then can only adopt the on-the-spot way of in time tasting, usually be not only unhygienic but also easily cause waste.

Whether ripe the summary of the invention the purpose of this utility model provide a kind of melon fruit melon and fruit fruit maturity instrument that can be used for surveying.

For achieving the above object, the utility model melon and fruit fruit maturity instrument, warning circuit by two probe (a) and (b) that are positioned at this fruit maturity instrument front end and spy device is formed, the branch hydraulic circuit of described warning circuit for composing in series by adjustable resistance VR and probe (a) and (b), the link of adjustable resistance VR and probe (a) two elements is inserted by the pin 12,13 of integrated package CD4011, and a branch road of drawing from pin 11 is drawn with resistance R 1, light emitting diode VD from pin 10 in pin 8,9 secondaries insert integrated package CD4011 and composed in series luminous loop successively; Another route pin 1 of drawing from pin 11 inserts integrated package CD4011, draw through pin 5,6 secondaries access integrated package CD4011 from pin 3, drawing the back from pin 4 inserts the oscillatory circuit of being made up of capacitor C 4700P, resistance R 2, pin 2,6 is electrically connected with above-mentioned oscillatory circuit, and hummer HTD is connected in series with oscillatory circuit.

Many according to free water in many, the ripe melons of irreducible water in the unripe watermelon, the characteristics that consequent electric conductivity is different, promptly ripe melon resistance is little, unripe watermelon resistance is big.In the time of in two probe a, b insert unripe watermelon, because unripe watermelon resistance is big, pin 12,13 inside of integrated package CD4011 are in high level state, and output low level makes pin 8,9 and 1 be in low level state, and light emitting diode VD is not luminous, hummer HTD does not ring.When two probe a, b inserted in the ripe melon, because ripe melon resistance is little, the pin 12,13 of integrated package CD4011 was in low level, and the output high level makes pin 8,9 and 1 be in high level state, circuit turn-on, and light emitting diode VD is luminous, hummer HTD rings.

The utility model has the advantages that: whether simple in structure, making, easy to use, it is ripe to detect melon and fruit class fruit easily.

Description of drawings Fig. 1 is the utility model melon and fruit fruit maturity instrument structural representation.

Fig. 2 is the circuit structure diagram of the utility model melon and fruit fruit maturity instrument.

Embodiment such as Fig. 1,2 show, the serve as reasons warning circuit of the two probe a, the b that are positioned at this fruit maturity instrument front end and fruit maturity instrument of the utility model melon and fruit fruit maturity instrument is formed, the branch hydraulic circuit of described warning circuit for composing in series by adjustable resistance VR and probe a, b, the link of adjustable resistance VR and probe a two elements is inserted by the pin 12,13 of integrated package CD4011, one branch road of drawing from pin 11 is drawn with resistance R 1, light emitting diode VD from pin 10 in pin 8,9 secondaries insert integrated package CD4011 and is composed in series luminous loop successively, R1 resistance 3K Ω; Another route pin 1 of drawing from pin 11 inserts integrated package CD4011, draw through pin 5,6 secondaries access integrated package CD4011 from pin 3, drawing the back from pin 4 inserts the oscillatory circuit of being made up of capacitor C 4700P, resistance R 2, R2 resistance 100, pin 2,6 is electrically connected with above-mentioned oscillatory circuit, and hummer HTD is connected in series with oscillatory circuit.During use when two probe a, b insert in the unripe watermelon, because unripe watermelon resistance is big, pin 12,13 inside of integrated package CD4011 are in high level state, output low level, make pin 8,9 and 1 be in low level state, light emitting diode VD is not luminous, hummer HTD does not ring.When two probe a, b inserted in the ripe melon, because ripe melon resistance is little, the pin 12,13 of integrated package CD4011 was in low level, and the output high level makes pin 8,9 and 1 be in high level state, circuit turn-on, and light emitting diode VD is luminous, hummer HTD rings.

The profile of this product can adopt lip pencil, can weld a needle tubing at the point place during use, places the container of glucose test paper in a tail place welding.Can directly detect the content of sugar part in the melon.During practical application, also this product can be fixed on the below of market pan of a steelyard.

Claims

1, a kind of melon and fruit fruit maturity instrument, form by the two probe (a) and (b) that are positioned at this fruit maturity instrument front end and the warning circuit of fruit maturity instrument, it is characterized in that: the branch hydraulic circuit of described warning circuit for composing in series by adjustable resistance VR and probe (a) and (b), the link of adjustable resistance VR and probe (a) two elements is inserted by the pin 12,13 of integrated package CD4011, and a branch road of drawing from pin 11 is drawn with resistance R 1, light emitting diode VD from pin 10 in pin 8,9 secondaries insert integrated package CD4011 and composed in series luminous loop successively; Another route pin 1 of drawing from pin 11 inserts integrated package CD4011, draw through pin 5,6 secondaries access integrated package CD4011 from pin 3, drawing the back from pin 4 inserts the oscillatory circuit of being made up of capacitor C 4700P, resistance R 2, pin 2,6 is electrically connected with above-mentioned oscillatory circuit, and hummer HTD is connected in series with oscillatory circuit.

2, according to the described melon and fruit fruit maturity instrument of claim 1, it is characterized in that: adopt pen-like shape, weld a needle tubing at the nib place, the container of glucose test paper is placed in a tail place welding.