JPH07198636A - Device for evaluating quality of fruit - Google Patents
Device for evaluating quality of fruitInfo
- Publication number
- JPH07198636A JPH07198636A JP35214693A JP35214693A JPH07198636A JP H07198636 A JPH07198636 A JP H07198636A JP 35214693 A JP35214693 A JP 35214693A JP 35214693 A JP35214693 A JP 35214693A JP H07198636 A JPH07198636 A JP H07198636A
- Authority
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- Prior art keywords
- fruit
- spin
- relaxation time
- magnetic field
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は果実の品質評価装置に係
り、特に、果実の熟度や特定成分によって定まる品質
を、果実を破壊せずに短時間に、果物の内部全体的に亘
って評価すると共に、果実選別装置に好適な果実の品質
評価装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fruit quality evaluation apparatus, and more particularly, to a quality determined by the ripeness of a fruit or a specific component, over the entire inside of the fruit in a short time without destroying the fruit. The present invention relates to a fruit quality evaluation device suitable for evaluation and suitable for a fruit selection device.
【０００２】[0002]
【従来の技術】一般に、果実の品質評価のうち特定成分
のうち糖質の測定には、近赤外線の反射と吸収とを対象
とした分光法が用いられている。この方法で、果実を破
壊せずに測定すると表皮から数mmまでの深さの成分を測
定するとができる。2. Description of the Related Art Generally, in the evaluation of fruit quality, sugar is measured as a specific component, and a spectroscopic method for reflection and absorption of near infrared rays is used. By this method, it is possible to measure a component at a depth of up to several mm from the epidermis when measuring the fruit without destroying it.
【０００３】また、特定成分のうち糖質については、上
記のような方法で測定され選果装置に利用されている。Further, among the specific components, sugars are measured by the above-mentioned method and used in a fruit selecting device.
【０００４】熟度については明確な測定方法が確立して
いないため、色の変化、硬さの変化を測定して指標とし
ている。Since a clear measuring method for maturity has not been established, changes in color and hardness are measured and used as indices.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来の
品質評価方法では、表皮から数mmまでの深さの成分しか
測定できないので、果実全体の品質を評価できない、と
いう問題がある。However, the conventional quality evaluation method has a problem in that the quality of the whole fruit cannot be evaluated because only the components having a depth of several mm from the epidermis can be measured.
【０００６】本発明は上記問題点を解決するために成さ
れたもので、果物を破壊することなく果実全体の品質を
評価することができる果物の品質評価装置を提供するこ
とを目的とする。The present invention has been made to solve the above problems, and an object of the present invention is to provide a fruit quality evaluation apparatus capable of evaluating the quality of the whole fruit without destroying the fruit.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に請求項１の発明は、静磁場を発生する磁石と、特定原
子核に共鳴する周波数の高周波を発生する高周波発生器
と、前記高周波に基づいてパルス状の高周波磁場を試料
果実に印加すると共に磁場印加により発生する共鳴信号
を検出するコイルと、前記コイルの検出出力に基づいて
試料果実の品質を評価する品質評価手段と、を含んで構
成したものである。In order to achieve the above object, the invention of claim 1 provides a magnet for generating a static magnetic field, a high frequency generator for generating a high frequency of a frequency resonant with a specific atomic nucleus, and the high frequency. A coil that applies a pulsed high-frequency magnetic field to the sample fruit based on the coil and detects a resonance signal generated by the magnetic field application, and a quality evaluation unit that evaluates the quality of the sample fruit based on the detection output of the coil. It is composed.
【０００８】また、請求項２の発明は請求項１の発明の
品質評価測定手段によって、磁気共鳴のスピン−格子緩
和時間、スピン−スピン緩和時間及び磁気共鳴スペクト
ルの変化に基づいて試料果実の品質を評価するようにし
たものである。According to the invention of claim 2, the quality of the sample fruit is measured by the quality evaluation measuring means of the invention of claim 1 based on changes in the spin-lattice relaxation time of the magnetic resonance, the spin-spin relaxation time and the magnetic resonance spectrum. Is to be evaluated.
【０００９】[0009]
【作用】本発明では、試料果実に静磁場を印加すると共
にパルス状の高周波磁場を印加し、コイルによりパルス
状の高周波磁場印加により発生する共鳴信号を検出す
る。そして、コイルの検出出力に基づいて試料果実の品
質を評価する。この試料果実の品質評価は、磁気共鳴の
スピン−格子緩和時間、スピン−スピン緩和時間及び磁
気共鳴スペクトルの変化に基づいて行うと効果的であ
る。In the present invention, the static magnetic field is applied to the sample fruit and the pulsed high frequency magnetic field is applied, and the resonance signal generated by the application of the pulsed high frequency magnetic field is detected by the coil. Then, the quality of the sample fruit is evaluated based on the detection output of the coil. It is effective to evaluate the quality of this sample fruit based on changes in spin-lattice relaxation time of magnetic resonance, spin-spin relaxation time, and magnetic resonance spectrum.
【００１０】このように本発明は、磁気共鳴によって果
物の品質を評価しているため、果物を破壊することなく
果実全体の品質を評価することができる。As described above, according to the present invention, since the quality of fruits is evaluated by magnetic resonance, the quality of the whole fruits can be evaluated without destroying the fruits.
【００１１】[0011]
【実施例】以下図面を参照して本発明の一実施例を詳細
に説明する。本実施例は本発明の果実の品質評価装置を
果実の選別装置に適用したものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. In this embodiment, the fruit quality evaluation device of the present invention is applied to a fruit selection device.
【００１２】本実施例の果実の選別装置は、図１及び図
２に示すように、静磁場を発生する一対の磁石１０を備
えている。この磁石１０としては、常電導磁石、超電導
磁石、永久磁石のいずれかを用いることができる。磁石
１０間には、磁石１０によって発生された静磁場に直交
する方向に試料果実を搬送する搬送コンベア１２が配置
されている。この搬送コンベア１２には試料果実を保持
するたの保持具１４が、搬送コンベア１２の長さ方向に
沿って所定間隔隔てて多数個配置されている。The fruit sorting apparatus of this embodiment, as shown in FIGS. 1 and 2, comprises a pair of magnets 10 for generating a static magnetic field. As the magnet 10, any one of a normal conducting magnet, a superconducting magnet, and a permanent magnet can be used. A transfer conveyor 12 that transfers sample fruits in a direction orthogonal to the static magnetic field generated by the magnets 10 is arranged between the magnets 10. A large number of holders 14 for holding sample fruits are arranged on the conveyor 12 along the length direction of the conveyor 12 at predetermined intervals.
【００１３】静磁場内の試料果実搬送方向下流側には、
パルス状の高周波磁場を静磁場と直交する方向に発生す
るための一対の励起コイル１６が配置されており、この
励起コイル１６の間には、内部を搬送コンベア１２に保
持された試料果実が通過可能に受信コイル１８が配置さ
れている。On the downstream side of the sample fruit conveyance direction in the static magnetic field,
A pair of excitation coils 16 for generating a pulsed high-frequency magnetic field in a direction orthogonal to the static magnetic field are arranged, and between the excitation coils 16, the sample fruit held inside by the conveyor 12 passes. The receiving coil 18 is arranged as possible.
【００１４】また、特定原子核であるプロトンに共鳴す
る周波数の高周波を発生する高周波発振器２０が設けら
れており、この高周波発振器２０はゲート回路２２及び
電力増幅器２４を介して励起コイル１６に接続されてい
る。Further, there is provided a high frequency oscillator 20 which generates a high frequency of a frequency that resonates with protons which are specific atomic nuclei. The high frequency oscillator 20 is connected to the excitation coil 16 via a gate circuit 22 and a power amplifier 24. There is.
【００１５】受信コイル１８は、信号増幅器２６及びＡ
／Ｄ変換器２８を介してＣＰＵを含むコンピュータ等で
構成された演算装置３０に接続されている。また、この
演算装置３０は、パルス発生器３２を介してゲート回路
２２に接続されると共に、表示器３４に接続され、また
試料果実の供給を制御するＣＰＵを含むコンピュータ等
で構成された試料果実供給制御装置３６に接続されてい
る。The receiving coil 18 includes a signal amplifier 26 and A
It is connected via a / D converter 28 to an arithmetic unit 30 composed of a computer or the like including a CPU. Further, the arithmetic unit 30 is connected to the gate circuit 22 via the pulse generator 32, is connected to the display 34, and is a sample fruit including a computer including a CPU for controlling the supply of the sample fruit. It is connected to the supply control device 36.
【００１６】この試料果実供給制御装置３６には、試料
果実の位置を制御する試料果実位置制御器３８、試料果
実の搬送を制御する試料果実搬送制御器４０及び品質に
応じて試料果実を選別する試料果実選別制御器４２が接
続されている。The sample fruit supply control device 36 selects a sample fruit position controller 38 for controlling the position of the sample fruit, a sample fruit transfer controller 40 for controlling the transfer of the sample fruit, and the sample fruit according to the quality. A sample fruit selection controller 42 is connected.
【００１７】上記演算装置３０には、以下で説明する測
定ルーチンのプログラムが記憶され、また試料果実供給
制御装置３６には以下で説明する選別ルーチンのプログ
ラムが予め記憶されている。The arithmetic unit 30 stores a program of a measurement routine described below, and the sample fruit supply control unit 36 stores a program of a selection routine described below in advance.
【００１８】以下本実施例の作用について説明する。ま
ず、図３に基づいて、測定ルーチンについて説明する。
試料果実は、試料果実搬送制御器４０によって制御され
る搬送コンベア１２によって搬送され、静磁場中を通過
することにより静磁場が印加され、試料果実位置制御器
３８によって励起コイル１６間の規定位置に位置決めさ
れている。The operation of this embodiment will be described below. First, the measurement routine will be described with reference to FIG.
The sample fruit is transported by the transport conveyor 12 controlled by the sample fruit transport controller 40, a static magnetic field is applied by passing through the static magnetic field, and the sample fruit position controller 38 causes the sample fruit to move to a predetermined position between the excitation coils 16. It is positioned.
【００１９】ステップ１００において、試料果実供給制
御装置３６から測定開始要求信号が入力されたか否か判
断し、測定開始要求信号が入力されたときにはステップ
１０２においてパルス発生器３２を制御して一定周期で
一定幅のパルスを発生する。これにより、ゲート回路２
２が一定周期でパルス幅に相当する所定時間ずつ開かれ
て高周波が電力増幅器２４を介して励起コイル１６に印
加され、パルス状の高周波磁場が試料果実に一定周期で
印加される。In step 100, it is determined whether or not a measurement start request signal is input from the sample fruit supply control device 36, and when the measurement start request signal is input, the pulse generator 32 is controlled in step 102 to set a fixed cycle. Generates a pulse of constant width. As a result, the gate circuit 2
2 is opened for a predetermined period of time corresponding to the pulse width in a constant cycle, a high frequency is applied to the excitation coil 16 via the power amplifier 24, and a pulsed high frequency magnetic field is applied to the sample fruit in a constant cycle.
【００２０】パルス状の高周波磁場の印加後ステップ１
０４において受信コイル１８に発生する誘導電流を信号
増幅器２６を介してＡ／Ｄ変換器２８に取込み、Ａ／Ｄ
変換を行う。次のステップ１０６ではパルス信号のパル
ス幅に相当する所定時間経過したか判断し、所定時間経
過したと判断されたときには、ステップ１０８において
所定回数、パルス発生とＡ／Ｄ変換とを実行したか否か
判断し、肯定判断のときはステップ１０８に進む。これ
によって、所定個のパルスが一定周期で発生されて、パ
ルス状高周波磁場が一定周期で印加されたときの共鳴信
号がパルス状高周波磁場の印加毎に検出される。Step 1 after application of pulsed high frequency magnetic field
At 04, the induced current generated in the receiving coil 18 is taken into the A / D converter 28 via the signal amplifier 26,
Do the conversion. In the next step 106, it is determined whether or not a predetermined time corresponding to the pulse width of the pulse signal has elapsed. If it is determined that the predetermined time has elapsed, then in step 108 it is determined whether pulse generation and A / D conversion have been performed a predetermined number of times. If yes, the process proceeds to step 108. As a result, a predetermined number of pulses are generated in a constant cycle, and a resonance signal when the pulsed high frequency magnetic field is applied in a constant cycle is detected every time the pulsed high frequency magnetic field is applied.
【００２１】次のステップ１１０では共鳴信号の自由誘
導減衰（Ｆｒｅｅ Ｉｎｄｕｃｔｉｏｎ Ｄｅｃａｙ：
ＦＩＤ）からスピン−格子緩和時間Ｔ１、スピン−スピ
ン緩和時間Ｔ２を求め、ＦＩＤをフーリエ変換して周波
数分析し、磁気共鳴スペクトルの変化データ（スペクト
ルの本数、強度）を求める。ステップ１１２でこれらの
求めたデータを試料果実供給制御装置３６に送信する。In the next step 110, a free induction decay of the resonance signal (Free Induction Decay:
The spin-lattice relaxation time T1 and the spin-spin relaxation time T2 are obtained from (FID), the FID is subjected to Fourier transform and frequency analysis is performed, and change data (number of spectra, intensity) of the magnetic resonance spectrum is obtained. In step 112, the obtained data are transmitted to the sample fruit supply control device 36.
【００２２】このように、本実施例では静磁場内の試料
果実搬送方向下流側に測定位置が設けられているので、
パルス状の高周波磁場を試料果実に印加する前に、試料
果実に静磁場が印加される。このため、試料果実の巨視
的磁化が大きくなり、スピン−格子緩和時間Ｔ１及びス
ピン−スピン緩和時間Ｔ２以上の時間試料果実に静磁場
が印加されることになり、これによって測定時間を短縮
することができる。As described above, in this embodiment, since the measurement position is provided on the downstream side in the direction of transporting the sample fruit in the static magnetic field,
A static magnetic field is applied to the sample fruit before applying the pulsed high-frequency magnetic field to the sample fruit. Therefore, the macroscopic magnetization of the sample fruit becomes large, and the static magnetic field is applied to the sample fruit for a time period of the spin-lattice relaxation time T1 and the spin-spin relaxation time T2 or more, thereby shortening the measurement time. You can
【００２３】次に選別ルーチンを図４に基づいて説明す
る。ステップ１２０において運転スイッチがオンされた
と判断されると、ステップ１２２において試料果実搬送
制御器４０を作動させてステップ１２４で規定位置（測
定位置）に試料果実が到達したと判断されるまで試料果
実を測定部方向へ搬送する。測定位置に試料果実が到達
した時点で一旦試料果実搬送制御器４０を停止させ、ス
テップ１２６において測定開始要求信号を演算装置３０
に送信する。これによって、上記で説明した測定ルーチ
ンによってスピン−格子緩和時間Ｔ１、スピン−スピン
緩和時間Ｔ２及び磁気共鳴スペクトルの変化データが演
算されて送信され、ステップ１２８において受信され
る。Next, the selection routine will be described with reference to FIG. When it is determined that the operation switch is turned on in step 120, the sample fruit transport controller 40 is operated in step 122, and the sample fruit is removed until it is determined in step 124 that the sample fruit has reached the specified position (measurement position). Convey to the measuring section. When the sample fruit reaches the measurement position, the sample fruit transport controller 40 is temporarily stopped, and in step 126, a measurement start request signal is sent to the arithmetic unit 30.
Send to. Thereby, the spin-lattice relaxation time T1, the spin-spin relaxation time T2, and the magnetic resonance spectrum change data are calculated and transmitted by the measurement routine described above, and are received in step 128.
【００２４】ステップ１３０では受信したスピン−格子
緩和時間Ｔ１、スピン−スピン緩和時間Ｔ２及び磁気共
鳴スペクトルの変化に基づいて以下の式に従って階級を
演算する。 Ｆ＝Ｆ1 （Ｔ１）＋Ｆ2 （Ｔ２）＋Ｆ3 （Ａ1 ）＋・・・ ＋Ｆn （Ａn-2 ） ・・・（１） なお、上記式においてＦ1 （Ｔ１）はスピン−格子緩和
時間Ｔ１の関数、Ｆ2（Ｔ２）はスピン−スピン緩和時
間Ｔ２の関数、Ｆ3 （Ａ1 ）、Ｆ4 （Ａ4 ）、・・・Ｆ
n （Ａn-2 ）は所定のスペクトル強度（振幅）の関数で
あり、これらの関数は果実の品種や産地等に応じて定め
る。In step 130, a class is calculated according to the following equation based on the changes in the received spin-lattice relaxation time T1, spin-spin relaxation time T2 and magnetic resonance spectrum. F = F 1 (T1) + F 2 (T2) + F 3 (A 1 ) + ... + F n (A n-2 ) ... (1) In the above formula, F 1 (T1) is a spin-lattice. F 2 (T 2 ) is a function of the relaxation time T 1 , and F 3 (A 1 ), F 4 (A 4 ), ... F are functions of the spin-spin relaxation time T 2.
n (A n-2 ) is a function of a predetermined spectral intensity (amplitude), and these functions are determined depending on the fruit variety, production area, and the like.
【００２５】熟度を試料果実内部の水分の果肉中におけ
る結合の強さとの相関値と定義すると、この相関値は、
磁気共鳴スペクトルのスピン−格子緩和時間Ｔ１やスピ
ン−スピン緩和時間Ｔ２と相関があり、このスピン−格
子緩和時間Ｔ１やスピン−スピン緩和時間Ｔ２から熟度
を演算することができる。図５は西洋ナシ（商品名：ラ
・フランス）について、追熟日数（日数が経過すると試
料果実内部の水分の果肉中における結合が弱くなる）と
スピン−格子緩和時間Ｔ１との関係を調べたものであ
り、追熟日数が経過するに従ってスピン−格子緩和時間
Ｔ１が長くなっている。また、図６に示すように、糖質
水溶液濃度が高くなるとスピン−格子緩和時間Ｔ１が短
くなっている。When the maturity is defined as the correlation value with the bond strength of the water inside the sample fruit in the pulp, this correlation value is
There is a correlation with the spin-lattice relaxation time T1 and the spin-spin relaxation time T2 of the magnetic resonance spectrum, and the maturity can be calculated from the spin-lattice relaxation time T1 and the spin-spin relaxation time T2. FIG. 5 shows the relationship between the ripening days (the binding of water inside the sample fruit in the pulp becomes weaker) and the spin-lattice relaxation time T1 for pears (trade name: La France). The spin-lattice relaxation time T1 becomes longer as the number of days of additional ripening elapses. Further, as shown in FIG. 6, the spin-lattice relaxation time T1 becomes shorter as the concentration of the sugar aqueous solution becomes higher.
【００２６】更に、図７に示すように、スピン−スピン
緩和時間Ｔ２は影響は小さいが糖度が高くなるに従って
短くなり、熟度が高くなるに従って長くなる。Further, as shown in FIG. 7, the spin-spin relaxation time T2 has a small influence but becomes shorter as the sugar content becomes higher, and becomes longer as the maturity becomes higher.
【００２７】従って、上記の（１）式から階級を演算す
ることができ、この階級の値と予め定められた複数の閾
値とを比較することにより、次の表に示すように、果実
をＡ級、Ｂ級、Ｃ級・・・等に選別する。Therefore, the class can be calculated from the above equation (1), and by comparing the value of this class with a plurality of predetermined threshold values, the fruit A can be calculated as shown in the following table. Class, B, C ...
【００２８】[0028]
【表１】 [Table 1]
【００２９】この選別された階級や制御の流れはステッ
プ１３２において表示器３４に表示される。The selected class and control flow are displayed on the display 34 in step 132.
【００３０】次のステップ１３４において試料果実が選
別されるように、選別ゲートを制御し階級に応じて果実
が選別されるように制御する。In the next step 134, the sorting gate is controlled so that the sample fruits are sorted, and the fruits are sorted according to the class.
【００３１】以上説明したように本実施例によれば、磁
気共鳴を利用しているため、加熱処理、化学処理または
破壊をすることなく、果実全体の熟度や特定成分から果
実の品質を評価し、品質に応じて果実を選別することが
できる、という効果が得られる。As described above, according to this embodiment, since the magnetic resonance is utilized, the quality of the fruit is evaluated from the ripeness of the whole fruit and the specific component without heat treatment, chemical treatment or destruction. However, the effect that fruits can be selected according to quality is obtained.
【００３２】なお、上記では励起コイルと受信コイルと
の２つのコイルを用いる例について説明したが、本発明
はこれに限定されるものではなく、１つのコイルを用い
てパルス状の高周波磁場を印加すると共に共鳴信号を検
出するようにしてもよい。Although an example using two coils, an excitation coil and a receiving coil, has been described above, the present invention is not limited to this, and one coil is used to apply a pulsed high-frequency magnetic field. Alternatively, the resonance signal may be detected.
【００３３】また、上記では本発明を果実の選別装置に
適用した例について説明したが、果物の品質の評価のみ
を行う評価装置にも適用することができる。In the above description, an example in which the present invention is applied to a fruit selection device has been described, but the present invention can also be applied to an evaluation device that only evaluates fruit quality.
【００３４】[0034]
【発明の効果】以上説明したように本発明によれば、磁
気共鳴を利用しているため、加熱処理、化学処理または
破壊をすることなく、果実全体の品質を評価することが
できる、という効果が得られる。As described above, according to the present invention, since the magnetic resonance is utilized, the quality of the whole fruit can be evaluated without heat treatment, chemical treatment or destruction. Is obtained.
【図１】本発明の一実施例を示す概略図である。FIG. 1 is a schematic view showing an embodiment of the present invention.
【図２】上記実施例の測定部近傍の側面図である。FIG. 2 is a side view of the vicinity of the measuring unit in the above embodiment.
【図３】上記実施例の測定ルーチンを示す流れ図であ
る。FIG. 3 is a flowchart showing a measurement routine of the above embodiment.
【図４】上記実施例の選別ルーチンを示す流れ図であ
る。FIG. 4 is a flowchart showing a selection routine of the above embodiment.
【図５】スピン−格子緩和時間と熟度との関係を示す線
図である。FIG. 5 is a diagram showing a relationship between spin-lattice relaxation time and maturity.
【図６】糖質水溶液濃度とスピン−格子緩和時間との関
係を示す線図である。FIG. 6 is a diagram showing the relationship between the concentration of an aqueous sugar solution and the spin-lattice relaxation time.
【図７】糖度、熟度とスピン−スピン緩和時間との関係
を示す線図である。FIG. 7 is a diagram showing the relationship between sugar content, maturity and spin-spin relaxation time.
１０ 磁石 １２ 搬送コンベア １４ 保持具 １６ 励起コイル １８ 受信コイル ２０ 高周波発振器 ２２ ゲート回路 ２４ 電力増幅器 ２６ 信号増幅器 ２８ Ａ／Ｄ変換器 ３０ 演算装置 DESCRIPTION OF SYMBOLS 10 magnet 12 carrier conveyor 14 holder 16 excitation coil 18 receiving coil 20 high frequency oscillator 22 gate circuit 24 power amplifier 26 signal amplifier 28 A / D converter 30 arithmetic unit
Claims (2)
発生器と、 前記高周波に基づいてパルス状の高周波磁場を試料果実
に印加すると共に磁場印加により発生する共鳴信号を検
出するコイルと、 前記コイルの検出出力に基づいて試料果実の品質を評価
する品質評価手段と、 を含む果実の品質評価装置。1. A magnet for generating a static magnetic field, a high-frequency generator for generating a high frequency of a frequency that resonates with specific atomic nuclei, and a pulsed high-frequency magnetic field is applied to the sample fruit based on the high frequency and is generated by applying the magnetic field. A fruit quality evaluation device, comprising: a coil for detecting a resonance signal for performing a quality evaluation;
ピン−格子緩和時間、スピン−スピン緩和時間及び磁気
共鳴スペクトルの変化に基づいて試料果実の品質を評価
する請求項１の果実の品質評価装置。2. The fruit quality evaluation according to claim 1, wherein the quality evaluation measuring means evaluates the quality of the sample fruit based on changes in magnetic resonance spin-lattice relaxation time, spin-spin relaxation time and magnetic resonance spectrum. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35214693A JPH07198636A (en) | 1993-12-29 | 1993-12-29 | Device for evaluating quality of fruit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35214693A JPH07198636A (en) | 1993-12-29 | 1993-12-29 | Device for evaluating quality of fruit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07198636A true JPH07198636A (en) | 1995-08-01 |
Family
ID=18422097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35214693A Pending JPH07198636A (en) | 1993-12-29 | 1993-12-29 | Device for evaluating quality of fruit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07198636A (en) |
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|---|---|---|---|---|
| US7880467B2 (en) | 2005-06-09 | 2011-02-01 | Aspect Magnet Technologies Ltd. | Packed array of MRI/NMR devices and an MRI/NMR method of analyzing adjacent lines of goods simultaneously |
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| CN103954681A (en) * | 2014-04-28 | 2014-07-30 | 深圳市柳迪科技有限公司 | Device and method for testing fruit interior quality |
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| WO2017121532A1 (en) * | 2016-01-14 | 2017-07-20 | Siemens Aktiengesellschaft | Device and method for measuring magnetic resonance signals |
| CN107991337A (en) * | 2017-12-11 | 2018-05-04 | 四川大学 | It is a kind of to be suitable for the drying low-field nuclear magnetic resonance Non-Destructive Testing line with shell fruit |
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-
1993
- 1993-12-29 JP JP35214693A patent/JPH07198636A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7880467B2 (en) | 2005-06-09 | 2011-02-01 | Aspect Magnet Technologies Ltd. | Packed array of MRI/NMR devices and an MRI/NMR method of analyzing adjacent lines of goods simultaneously |
| WO2013062260A1 (en) * | 2011-10-26 | 2013-05-02 | 한국표준과학연구원 | Method and apparatus for identifying extremely-low-magnetic-field nuclear magnetic resonance material |
| KR101287426B1 (en) * | 2011-10-26 | 2013-07-18 | 한국표준과학연구원 | Target Discrimination Method by using Ultra-Low Field NMR and Ultra-Low Field NMR Target Discrimination Apparatus |
| US9759793B2 (en) | 2011-10-26 | 2017-09-12 | Korea Research Institute Of Standards And Science | Object discrimination method using ultra-low magnetic field nuclear magnetic resonance and an object discrimination apparatus of the same |
| JP2013240299A (en) * | 2012-05-21 | 2013-12-05 | Tokyo Univ Of Agriculture & Technology | Harvesting apparatus and harvesting method |
| CN103954681A (en) * | 2014-04-28 | 2014-07-30 | 深圳市柳迪科技有限公司 | Device and method for testing fruit interior quality |
| US11300531B2 (en) | 2014-06-25 | 2022-04-12 | Aspect Ai Ltd. | Accurate water cut measurement |
| WO2017064479A1 (en) * | 2015-10-12 | 2017-04-20 | Mm (Uk) Limited | A foodstuff item characteristic mri detection system |
| WO2017121532A1 (en) * | 2016-01-14 | 2017-07-20 | Siemens Aktiengesellschaft | Device and method for measuring magnetic resonance signals |
| CN106525892A (en) * | 2017-01-13 | 2017-03-22 | 湖南理工学院 | Watermelon maturity detection device and method |
| US10345251B2 (en) | 2017-02-23 | 2019-07-09 | Aspect Imaging Ltd. | Portable NMR device for detecting an oil concentration in water |
| CN107991337A (en) * | 2017-12-11 | 2018-05-04 | 四川大学 | It is a kind of to be suitable for the drying low-field nuclear magnetic resonance Non-Destructive Testing line with shell fruit |
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